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3754, 3769, 3791, 3894, 4048, 4074, 4116, 4143, 4150, 4159, 4199, 4218, 4288, 4374, 4382, 4392, 4413, 4616], 'ChemistryFree': [10], 'Access': [11], 'Submicron': [12], 'aerosol': [13, 31, 588, 600, 742, 896, 1146, 1164, 1172, 1297, 1382, 1718, 2104, 3450, 4004, 4093, 4235], 'analysis': [14, 765, 878, 966, 1461, 2124, 2279, 2315, 2358, 2361, 2515, 2615, 2683, 2691, 3932], 'organic': [16, 648, 681, 708, 715, 741, 753, 772, 811, 852, 1171, 2282, 2336, 2354, 3122, 3494, 4117], 'source': [17, 960, 1464, 2435, 3165, 4329], 'apportionment': [18, 961, 1219, 1465], 'in': [19, 23, 555, 566, 577, 585, 594, 610, 700, 703, 866, 868, 898, 905, 925, 927, 941, 955, 995, 1042, 1057, 1070, 1107, 1118, 1122, 1148, 1166, 1201, 1250, 1259, 1262, 1280, 1299, 1359, 1370, 1390, 1453, 1503, 1505, 1518, 1535, 1546, 1560, 1576, 1637, 1640, 1688, 1696, 1705, 1723, 1813, 1896, 2212, 2240, 2356, 2366, 2415, 2523, 2612, 2711, 2714, 2914, 2958, 2961, 2990, 3000, 3044, 3200, 3308, 3412, 3461, 3525, 3538, 3601, 3645, 3742, 3771, 3793, 3863, 3904, 3933, 3959, 3977, 3982, 3993, 4071, 4099, 4119, 4131, 4258, 4273, 4314, 4338, 4353, 4372, 4390, 4403, 4415, 4431, 4440, 4458, 4471, 4474, 4491, 4506, 4513, 4524, 4527, 4538, 4545, 4549, 4560, 4575, 4599, 4622, 4625], 'an': [20, 596, 607, 630, 684, 747, 952, 1202, 1378, 1387, 1666, 2014, 2158, 3355, 3765, 4201], 'urban': [21, 579, 608, 953, 1023, 1388, 1477, 1579, 4072, 4472, 4492, 4525, 4539], 'atmosphere': [22, 1478], 'Pearl': [24, 550, 983], 'River': [25, 551, 984], 'Delta': [26, 552, 985], 'China': [28, 557, 567, 956, 996], 'using': [29, 1868, 1956, 2112, 4095], 'high-resolution': [30, 598, 714, 771, 1380, 1468, 1716, 1842, 2144, 2324, 2345, 2546, 2801], 'mass': [32, 601, 632, 716, 773, 1279, 1383, 1469, 1719, 1830, 1843, 2145, 2155, 2196, 2325, 2341, 2346, 2438, 2633, 2982, 3142, 3330, 3345, 3545, 3583, 3619, 3813, 3832, 3952, 4054, 4107, 4245, 4255, 4456, 4502], 'spectrometry': [33], 'Ling-Yan': [34, 36, 255, 257], 'He,': [35, 256], 'He': [37, 258], 'Key': [38, 70, 100, 131, 159, 230, 259, 291, 321, 352, 380, 451, 945], 'Laboratory': [39, 71, 101, 133, 160, 232, 260, 292, 322, 354, 381, 453], 'for': [40, 59, 72, 91, 102, 121, 150, 161, 180, 200, 220, 249, 261, 280, 293, 312, 323, 342, 371, 382, 401, 421, 441, 470, 571, 642, 657, 801, 999, 1462, 1474, 1903, 2057, 2171, 2245, 2248, 2251, 2255, 2268, 2440, 2503, 2512, 2543, 2562, 2575, 2694, 2762, 2886, 2925, 3023, 3083, 3220, 3442, 3503, 3661, 3923], 'Urban': [41, 73, 103, 162, 262, 294, 324, 383], 'Habitat': [42, 74, 104, 163, 263, 295, 325, 384], 'Environmental': [43, 75, 105, 135, 142, 164, 234, 241, 264, 296, 326, 356, 363, 385, 455, 462], 'Science': [44, 76, 106, 165, 265, 297, 327, 386], 'Technology,': [46, 78, 108, 167, 267, 299, 329, 388], 'School': [47, 79, 109, 168, 268, 300, 330, 389], 'Environment': [49, 81, 111, 170, 270, 302, 332, 391], 'Energy,': [51, 83, 113, 172, 272, 304, 334, 393], 'Peking': [52, 84, 114, 146, 173, 245, 273, 305, 335, 367, 394, 466, 1574], 'University': [53, 85, 115, 174, 274, 306, 336, 395, 1575, 3112], 'Shenzhen': [54, 86, 116, 175, 275, 307, 337, 396, 1391, 1408, 1414, 1476, 1530, 1571, 3602, 4259, 4318, 4373, 4391, 4416, 4441, 4459, 4507], 'Graduate': [55, 87, 117, 176, 276, 308, 338, 397, 1572], 'School,': [56, 88, 118, 177, 277, 309, 339, 398, 1573], 'Shenzhen,': [57, 89, 119, 178, 278, 310, 340, 399], 'ChinaSearch': [58, 90, 120, 149, 179, 248, 279, 311, 341, 370, 400, 469], 'more': [60, 92, 122, 151, 181, 201, 221, 250, 281, 313, 343, 372, 402, 422, 442, 471, 847, 3775, 3892, 4056, 4426, 4521], 'papers': [61, 93, 123, 152, 182, 202, 222, 251, 282, 314, 344, 373, 403, 423, 443, 472], 'by': [62, 94, 124, 153, 183, 203, 223, 252, 283, 315, 345, 374, 404, 424, 444, 473, 664, 670, 957, 964, 1074, 1094, 1413, 1591, 1802, 2116, 2285, 2496, 2654, 2668, 2860, 3088, 3108, 3157, 3169, 3249, 3405, 3510, 3615, 3622, 3708, 3860, 3970, 4141, 4144, 4283, 4311, 4350, 4356], 'this': [63, 95, 125, 154, 184, 204, 224, 253, 284, 316, 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'Zheng': [188, 409], 'Department': [189, 209, 410, 430], 'Atmospheric': [191, 211, 412, 432], 'Sciences,': [192, 212, 413, 433], 'Texas': [193, 213, 414, 434, 3110], 'A&M': [194, 214, 415, 435, 3111], 'Station,': [197, 217, 418, 438], 'Texas,': [198, 218, 419, 439], 'USASearch': [199, 219, 420, 440], 'authorRenyi': [205, 426], 'Zhang,': [206, 226, 427, 447], 'Renyi': [207, 428], 'Zhang': [208, 228, 429, 449, 1031, 1065, 4013], 'authorYuan-Hang': [225, 446], 'Yuan-Hang': [227, 448], 'author': [254, 475], 'First': [476], 'published:': [477], '22': [478], 'June': [479], '2011': [480], 'https://doi.org/10.1029/2010JD014566Citations:': [481], '175AboutSectionsPDF': [482], 'ToolsRequest': [483], 'permissionExport': [484], 'citationAdd': [485], 'to': [486, 508, 531, 583, 735, 746, 817, 846, 893, 1005, 1024, 1050, 1090, 1254, 1265, 1357, 1395, 1430, 1438, 1555, 1750, 1827, 1840, 1853, 1991, 2086, 2140, 2169, 2178, 2333, 2428, 2603, 2620, 2645, 2648, 2696, 2758, 2853, 2875, 2922, 2998, 3042, 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4597, 4626], 'Wiley': [519], 'Online': [520], 'Library': [521], 'UseShareable': [526], 'LinkUse': [527], 'link': [529], 'a': [533, 783, 786, 836, 912, 922, 975, 1115, 1140, 1420, 1433, 1483, 1500, 1604, 1724, 1733, 1762, 1766, 1787, 1814, 1869, 2066, 2397, 2423, 2669, 2872, 2888, 2897, 2915, 3094, 3130, 3135, 3140, 3148, 3228, 3397, 3424, 3432, 3439, 3655, 3808, 3841, 3850, 3885, 3909, 3945, 3973, 3987, 4297, 4400, 4435, 4520], 'article': [538], 'with': [539, 834, 911, 972, 1012, 1102, 1135, 1311, 1400, 1482, 1665, 1765, 1973, 2000, 2065, 2107, 2201, 2293, 2331, 2339, 2422, 2518, 2606, 2799, 2815, 2950, 3147, 3190, 3227, 3354, 3396, 3420, 3423, 3581, 3654, 3913, 4058], 'your': [540], 'friends': [541], 'colleagues.': [543], 'Learn': [544], 'more.Copy': [545], 'URL': [546], 'Abstract': [547], '[1]': [548], 'The': [549, 813, 841, 855, 901, 967, 982, 1035, 1097, 1563, 1583, 1614, 1626, 1644, 1660, 1699, 1773, 1794, 1875, 1889, 1899, 1939, 2072, 2233, 2457, 2483, 2491, 2506, 2525, 2557, 2579, 2689, 2718, 2766, 2846, 2942, 3172, 3343, 3415, 3607, 3921, 4017, 4037, 4252, 4341, 4452, 4501, 4609], '(PRD)': [553, 986], 'region': [554, 987], 'South': [556], 'is': [558, 988, 1044, 1072, 1154, 1533, 1545, 2394, 2420, 2463, 2488, 2903, 3177, 3198, 3234, 3247, 3277, 3287, 3305, 3437, 3447, 3668, 3816, 3880, 3898, 4263, 4296, 4378, 4465], 'one': [559, 989, 2884, 4326], 'most': [562, 652, 992, 1036, 1178, 3498, 3823, 4028], 'economically': [563], 'developed': [564, 993, 2495, 4475], 'regions': [565, 994], 'while': [568, 828, 2673, 3845, 3871, 3888], 'also': [569, 1428, 2214, 3269, 3410, 3689, 3857, 3943, 4069, 4177, 4466], 'noted': [570, 998, 1983, 4179], 'its': [572, 697, 1000, 1019, 1586, 4049], 'severe': [573, 894], 'air': [574, 1040, 1060, 1130, 1278, 1756, 3241], 'pollution,': [575], 'especially': [576], 'environments.': [580], 'In': [581, 1355, 2309, 2387, 2805, 2895, 3936, 4405, 4634], 'order': [582, 1356], 'understand': [584, 1358], 'depth': [586, 1360], 'chemistry': [589], 'emission': [592, 1600], 'sources': [593, 1234, 1601], 'PRD,': [595, 1551], 'Aerodyne': [597, 1379, 1715], 'time-of-flight': [599, 1381, 1717], 'spectrometer': [602, 1384, 1425, 1720, 3099, 3143], '(HR-ToF-AMS)': [603, 1385], 'was': [604, 640, 650, 766, 815, 831, 888, 962, 1252, 1427, 1566, 1617, 1662, 1721, 1741, 1800, 1878, 1901, 1954, 2055, 2078, 2090, 2167, 2266, 2290, 2320, 2501, 2568, 2692, 2809, 2840, 2858, 3010, 3031, 3076, 3117, 3383, 3496, 3613, 3659, 3884, 3891, 4043, 4055, 4068, 4509], 'deployed': [605, 1377, 1722], 'at': [606, 921, 951, 974, 1256, 1386, 1499, 1786, 1912, 2013, 2033, 2181, 2485, 2528, 2753, 3012, 3251, 3604, 3986, 4045, 4125, 4194, 4205, 4246, 4271, 4334, 4345, 4375, 4393, 4421, 4443, 4607, 4648], 'site': [609, 924, 954, 978, 1389, 1502, 1565, 1704, 4299], 'Hong': [612, 1080, 1098, 1150, 1372, 1553, 4101], 'Kong–Shenzhen': [613, 1081, 1099, 1151, 1373, 4102], 'metropolitan': [614, 1076, 1100, 1152, 1374], 'area': [615, 1082, 1153, 1580, 4103], 'between': [616, 1619, 2218, 2471, 2724, 2910, 3260, 3390, 3568], '25': [617, 1620], 'October': [618, 1621, 4278], '2': [620, 1623, 1823, 1836, 1864, 3213], 'December': [621, 1624], '2009.': [622, 1625], 'Ten': [623], 'minute–resolved': [624], 'measurement': [625, 903, 919, 1309, 1449, 1497, 2059, 2273, 3475, 4343], 'data': [626, 775, 1892, 2123, 2393, 2452, 2481, 2507, 2530, 2591, 2764, 2877], 'were': [627, 780, 943, 969, 1520, 1588, 1651, 1675, 2110, 2138, 2243, 2516, 2532, 2587, 2600, 2628, 2640, 2666, 2679, 2756, 2971, 3019, 3210, 3218, 4027], 'analyzed,': [628, 3727], 'average': [631, 727, 799, 1645, 1667, 2558, 3356, 3563, 3586], 'concentration': [633, 867, 2156, 3331, 3346, 3546, 3876, 4256, 4439, 4457], '44.5': [635, 3358], '±': [636, 760, 1653, 1657, 1671, 3359, 3364], '34.0': [637, 3360], 'μg': [638, 3352, 3361, 4261, 4269, 4461, 4479, 4495], 'm−3': [639, 3362], 'calculated': [641, 2111, 2533, 3384], 'entire': [644, 3341], 'campaign.': [645, 3342], 'On': [646, 3492], 'average,': [647, 3493], 'matter': [649, 682, 754, 3495], 'abundant': [653, 1179, 3499, 3824], 'PM1': [654, 689, 693, 1397, 1994, 3315, 3329, 3344, 3500, 3533, 3544, 3555, 3582, 3598, 3831, 3915, 3951, 4254, 4369, 4455, 4582, 4594], 'component': [655, 3501, 3599], 'accounting': [656, 3502], '39.7%': [658, 3504], 'total': [661, 737, 810, 2899, 2948, 3017, 3054, 3507, 3812, 4053], 'mass,': [662, 3508], 'followed': [663, 3509], 'sulfate': [665, 1175, 3511, 3716, 3848, 3872, 3883, 4381, 4640], '(24.5%),': [666, 3512], 'black': [667, 2062, 3513], 'carbon': [668, 756, 2063, 3514], '(measured': [669], 'aethalometer,': [671], '14.0%),': [672], 'ammonium': [673, 1946, 2269, 3516, 3608, 3706, 4383], '(10.2%),': [674, 3517], 'nitrate': [675, 1947, 3518, 3714, 3942], '(10.0%),': [676, 3519], 'chloride': [678, 2252, 3521, 3638], '(1.6%).': [679, 3522], 'Moreover,': [680, 1471], 'comprised': [683], 'increasing': [685, 3709, 3843, 3914, 3947], 'fraction': [686], 'loading': [690, 694, 3833, 3916, 3953], 'as': [691, 1316, 1341, 1343, 1404, 1558, 1992, 2396, 2534, 2570, 2652, 2842, 2883, 2931, 2973, 2988, 3033, 3079, 3375, 3643, 3807, 3980, 4161, 4163, 4325, 4336, 4604], 'increased,': [695, 3954], 'denoting': [696, 871], 'key': [698, 890, 1116], 'role': [699, 1117, 4523], 'particulate': [701, 4164], 'pollution': [702, 897, 936, 1041, 1131, 1249, 1369, 1513], 'region.': [705], 'Calculations': [706], 'elemental': [709], 'composition': [710, 1399, 3534, 3580], 'based': [711, 931, 1303, 1466, 1508, 2270, 2979, 3178, 3928], 'on': [712, 726, 769, 798, 932, 1304, 1467, 1509, 1567, 1728, 1744, 2271, 2322, 2980, 3061, 3179, 3929, 4156, 4211], 'spectra': [717, 2146, 2326, 2347, 2439, 2634], 'obtained': [718, 2736, 2748, 3011], 'indicated': [719, 879, 1222, 4104, 4337], 'that': [720, 880, 915, 1170, 1223, 1493, 1984, 2190, 2198, 2783, 2811, 3685, 3820, 3846, 3882, 3901, 4025, 4105, 4180, 4267, 4380, 4488, 4512, 4517], 'C,': [721], 'H,': [722], 'O,': [723], 'N': [725], 'contributed': [728], '33.8%,': [729], '55.1%,': [730], '10.2%,': [731], '0.9%,': [733], 'respectively,': [734, 807], 'atomic': [738], 'numbers': [739, 2817], '(OA),': [743], 'which': [744, 797, 933, 1010, 1307, 1510, 2462, 2902, 3233, 3382, 3446, 3667, 3864], 'corresponded': [745, 845], 'OM/OC': [748], 'ratio': [749, 751, 4503, 4535], '(the': [750], 'mass/organic': [755], 'mass)': [757], '1.57': [759], '0.08.': [761], 'Positive': [762], 'matrix': [763, 2287, 2313], 'factorization': [764, 2288, 2314], 'then': [767, 2040, 3167], 'conducted': [768, 1618, 1955, 2321, 3219], 'spectral': [774, 1844, 2983], 'set.': [776], 'Four': [777], 'OA': [778, 1441, 1463, 3889, 4065], 'components': [779, 1180, 2283, 2355], 'identified,': [781], 'including': [782, 2610], 'hydrocarbon-like': [784], '(HOA),': [785], 'biomass': [787, 838, 1226, 1435], 'burning': [788, 839, 1436], '(BBOA),': [789], 'two': [791, 1075, 1846, 3416, 3822, 4562], 'oxygenated': [792], '(LV-OOA': [793], 'SV-OOA)': [795], 'components,': [796], 'accounted': [800], '29.5%,': [802], '24.1%,': [803], '18.8%,': [804], '27.6%,': [806], 'mass.': [812], 'HOA': [814], 'found': [816, 1253, 2215, 2810, 4379], 'contributions': [819, 2445, 3803], 'from': [820, 885, 1022, 1610, 1777, 2133, 2147, 2589, 2681, 2706, 2737, 2996, 3040, 3239, 3258, 3348, 3385, 4085, 4192, 4543], 'both': [821, 3180, 3478], 'fossil': [822], 'fuel': [823], 'combustion': [824], 'cooking': [826], 'emissions,': [827, 1225], 'BBOA': [830], 'well': [832, 1342, 2200, 4162, 4603], 'correlated': [833, 3419], 'acetonitrile,': [835, 1432], 'known': [837, 1434], 'marker.': [840], 'LV-OOA': [842, 860, 2976], 'SV-OOA': [844, 862, 2978], 'aged': [848, 4002], 'fresher': [850], 'secondary': [851, 1229], 'aerosol,': [853], 'respectively.': [854, 1659, 2153], 'diurnal': [856, 4590, 4611, 4643], 'variations': [857, 1628, 4591, 4612], 'showed': [863, 3684, 3840, 3849, 3908, 3944, 3972, 4641], 'significant': [864, 1598, 3842, 3851, 3946], 'increase': [865, 1132], 'daytime,': [870], 'their': [872, 2604, 2646, 2918, 2981, 4151], 'substantial': [873], 'photochemical': [874], 'formation.': [875, 4451], 'Back': [876], 'trajectory': [877, 3931], 'short-range': [882], 'regional': [883, 935, 1025, 1046, 1273, 1512, 3886, 4003, 4309, 4401], 'transport': [884, 1274, 4310], 'northeast': [887], 'factor': [891, 1460, 2164, 2399, 2670, 2816, 2838, 2851], 'leading': [892], 'submicron': [895, 939, 949, 1516], 'area.': [900], 'HR-ToF-AMS': [902, 918, 958, 1452, 1496, 1709, 1774, 1799, 1811, 1900, 2093, 2109, 2332, 2369, 3373], 'results': [904, 920, 968, 1310, 1450, 1458, 1473, 1498, 2705, 4344], 'campaign': [907, 1411, 1455, 1616, 1634, 1922, 3560, 4598], 'are': [908, 1176, 1231, 1479, 1596, 1635, 1686, 1893, 1988, 2008, 2408, 2709, 2956, 3409, 3730, 3750, 3778, 3926, 4398, 4417, 4425, 4565, 4620], 'completely': [909, 1480], 'compared': [910, 970, 1481, 4149, 4530], 'previous': [913, 1296, 1484, 2185, 2209, 2368], 'paper': [914, 1444, 1485, 3773], 'reports': [916, 1445, 1494], 'rural': [923, 977, 1501, 4298], 'PRD': [926, 942, 1043, 1071, 1167, 1251, 1300, 1504, 1519, 2213, 4304], 'same': [929, 4275, 4285, 4387, 4577], 'season,': [930], 'characteristics': [937, 1514, 3531], 'particle': [940, 1368, 1517, 1910, 1951, 2160, 2179, 3379, 4157, 4244], 'analyzed.': [944, 1521], 'Points': [946], 'We': [947], 'measured': [948, 2106, 2330, 2410, 3395, 3574, 3621, 3632, 3969], 'particles': [950, 1056, 1183, 1237, 1753, 1948, 1999, 2007, 3612, 4084], 'Organic': [959], 'performed': [963, 2693], 'PMF': [965, 2303, 2357, 2389, 2492, 2514, 2597, 2614, 2637, 2690, 2739, 2813], 'comprehensively': [971], 'those': [973, 4469, 4605], 'near': [976], '1.': [979, 1562, 4340], 'Introduction': [980], '[2]': [981], 'rapid': [1001], 'economic': [1002, 1120], 'development': [1003, 1121], 'due': [1004, 1049, 1264, 2177, 3691, 4567], 'manufacturing': [1006], 'export': [1008], 'industries,': [1009], 'comes': [1011], 'consequence': [1014], 'fast': [1016, 1344], 'deterioration': [1017], 'atmospheric': [1020], 'environment': [1021], 'scales': [1026], '[Streets': [1027], 'et': [1028, 1032, 1062, 1066, 1186, 1190, 1194, 1207, 1211, 1215, 1240, 1244, 1283, 1287, 1291, 1321, 1325, 1329, 1487, 1804, 1928, 1932, 1936, 2019, 2023, 2044, 2048, 2118, 2205, 2230, 2258, 2299, 2372, 2376, 2380, 2384, 2498, 2550, 2554, 2623, 2656, 2892, 2935, 2939, 3102, 3114, 3299, 3640, 3677, 3719, 3724, 3918, 3962, 4006, 4010, 4014, 4088, 4168, 4172, 4222, 4226, 4230, 4292, 4358, 4482, 4498, 4553], 'al.,': [1029, 1033, 1063, 1067, 1187, 1191, 1195, 1208, 1212, 1216, 1241, 1245, 1284, 1288, 1292, 1322, 1326, 1330, 1488, 1929, 1933, 1937, 2020, 2024, 2045, 2049, 2206, 2231, 2259, 2300, 2373, 2377, 2381, 2385, 2551, 2555, 2624, 2893, 2936, 2940, 3103, 3115, 3300, 3641, 3678, 3720, 3919, 3963, 4007, 4011, 4015, 4089, 4169, 4173, 4223, 4227, 4231, 4293, 4483, 4499, 4554], '2006;': [1030, 1192, 1213, 1242, 1289, 1327, 2046, 4228], '2008].': [1034, 1068, 1217, 2302], 'apparent': [1037], 'phenomenon': [1038], 'hazy': [1047], 'days': [1048], 'high': [1051, 1401, 3869], 'concentrations': [1052, 1831, 2089, 2098, 2197, 3557, 3600, 3620, 3717, 3870, 4366, 4389, 4409], 'airborne': [1054], 'fine': [1055, 1182, 1236, 1367, 4121], 'ambient': [1059, 1646, 3240, 4614], '[Cheung': [1061], '2005;': [1064, 1188, 1285, 1323], 'Urbanization': [1069], 'characterized': [1073], 'areas,': [1077], 'i.e.,': [1078], 'Guangzhou-Foshan': [1085], 'area,': [1086, 1101, 1375, 4305], 'many': [1088, 1163], 'medium': [1089], 'small': [1091, 3266, 4570, 4642], 'cities': [1092], 'linked': [1093], 'highway': [1095], 'net.': [1096], 'over': [1103, 2446], '15': [1104, 3391], 'million': [1105], 'people': [1106], 'about': [1108], '3000': [1109], 'km2': [1110], 'land,': [1111], 'has': [1112, 2362, 4434, 4447], 'been': [1113, 1302, 2363, 4348], 'playing': [1114], 'PRD.': [1123, 1706, 4404], 'As': [1124, 3722], 'adverse': [1126], 'health': [1127], 'impacts': [1128], 'very': [1133, 3681, 3868], 'rapidly': [1134], 'population': [1137], 'size': [1138, 1855, 1952, 2100, 3388, 3536, 3587, 3978, 3989, 4019, 4035, 4038, 4060, 4066, 4108, 4137, 4236], 'city': [1141], '[Parrish': [1142], 'Zhu,': [1144], '2009],': [1145], 'research': [1147], 'great': [1156], 'interest.': [1157], '[3]': [1158], 'Over': [1159], 'last': [1161], 'decade,': [1162], 'studies': [1165, 1220, 1298, 2187, 2370, 3788], 'revealed': [1169], '(OA)': [1173], '[e.g.,': [1184, 1205, 1238, 1319], 'Louie': [1185, 1320], 'Hagler': [1189, 1286, 1324], '2006]': [1196, 2025], 'they': [1198, 2599, 2793, 3749, 4026, 4397, 4630], 'exist': [1199], 'dominantly': [1200], 'accumulation': [1203, 3975], 'mode': [1204, 1826, 1839, 1867, 1877, 1884, 1891, 3204, 3976, 4122], 'Yao': [1206], '2002;': [1209], 'Gnauk': [1214], 'Source': [1218], 'vehicle': [1224], 'burning,': [1227], 'formation': [1230], 'major': [1233, 2335, 3290, 4111], 'Yuan': [1239, 1290, 1328], '2006,': [1246], '2011].': [1247, 4294], 'Aerosol': [1248], 'be': [1255, 1982, 2041, 2778, 2881, 2929, 3155, 3468, 3690, 3757, 3858, 4076, 4147, 4178, 4320], 'higher': [1257, 2898, 3020, 3151, 4265, 4419, 4437, 4467, 4510], 'levels': [1258], 'winter': [1260, 1281], 'than': [1261, 2771, 2819, 3152, 3207, 3280, 4266, 4420, 4442, 4468, 4487, 4511], 'summer': [1263], 'lower': [1266, 1870, 4486], 'mixing': [1267], 'height,': [1268], 'less': [1269, 3279], 'wet': [1270], 'removal,': [1271], 'polluted': [1276], 'continental': [1277], '[Louie': [1282], '2006].': [1293], 'Most': [1294], 'filter': [1305], 'sampling,': [1306], 'offers': [1308], 'low': [1312], 'time': [1313, 1402, 2067, 2448, 2455, 2566, 2985, 3325, 3486, 3552], 'resolution,': [1314, 1403], 'such': [1315, 2360], '24': [1317, 3208], 'h': [1318], '2006],': [1331], 'although': [1332, 3728], 'chemical': [1334, 1362, 1398], 'complexity': [1335], 'labile': [1337], 'nature': [1338], 'aerosols': [1340, 3675, 4526], 'variation': [1345, 2943, 3542, 3577, 3800, 4644], 'meteorological': [1347, 1630, 1684], 'conditions': [1348, 1685], 'necessitate': [1349], 'highly': [1350, 1447, 3418], 'time-resolved': [1351, 1448], 'online': [1352], 'analysis.': [1353, 2505], '[4]': [1354], 'physical': [1364], 'processes': [1365], 'causing': [1366], 'we': [1376, 3761], 'during': [1392, 1632, 1679, 2564, 3339, 3558, 3902, 4489, 4596], 'fall': [1393, 1690], '2009': [1394], 'measure': [1396, 1431, 3120], 'part': [1405], 'Haze': [1409], 'monitoring': [1410], 'supported': [1412], 'Municipal': [1415], 'Government.': [1416], 'During': [1417, 1807, 3091], 'campaign,': [1419, 1809, 3093], 'commercial': [1421, 3095, 3191], 'proton': [1422, 3096, 3149], 'transfer': [1423, 3097], 'reaction–mass': [1424, 3098], '(PTR-MS)': [1426, 3100], 'utilized': [1429, 3118], 'marker,': [1437], 'help': [1439], 'explain': [1440], 'sources.': [1442], 'This': [1443, 2418, 3854, 3896, 4062], 'spectrometry.': [1470], '[Huang': [1486, 3917, 3961, 4087, 4291, 4497], '2011]': [1489], 'group': [1492, 4352], 'fall,': [1507], '2.': [1522], 'Experimental': [1523], 'Methods': [1524], 'Sampling': [1525], 'Site': [1526], 'Period': [1528], '[5]': [1529], '(113.9°E,': [1531], '22.6°N)': [1532], 'located': [1534], 'subtropics': [1537], 'along': [1538], 'southeast': [1540, 1548], 'coast': [1541], 'China.': [1543], 'It': [1544, 1980, 3815, 4175, 4377], 'corner': [1549], 'neighboring': [1552], 'Kong': [1554], 'south,': [1557], 'shown': [1559, 1636, 1801, 2189, 2710, 3644, 3981, 4621], 'Figure': [1561, 1638, 1694, 2712, 2959, 3321, 3413, 3523, 3646, 3796, 3861, 3983, 4339, 4361, 4585, 4623], 'sampling': [1564, 1612, 1681, 1703, 4219, 4289], 'campus': [1569, 1584], 'western': [1578], 'Shenzhen.': [1582, 1693, 4432, 4528], 'surroundings': [1587], 'mostly': [1589, 1663], 'covered': [1590], 'subtropical': [1592], 'plants': [1593], 'there': [1595, 3729, 4424], 'no': [1597, 2822, 3058], 'anthropogenic': [1599], 'nearby': [1602], 'except': [1603], 'local': [1605, 3893, 4427, 4450], 'road': [1606], '∼100': [1607], 'm': [1608], 'far': [1609], 'site.': [1613], 'field': [1615, 2186], 'temporal': [1627], 'parameters': [1631], 'S1': [1639, 4624], 'supporting': [1642, 2716, 2963, 4627], 'information.': [1643, 2717, 2964], 'temperature': [1647, 2036, 4615], 'relative': [1649, 2234, 3802, 3836, 3939, 4617], 'humidity': [1650, 4618], '20': [1652, 4478], '6°C': [1654], '63': [1656], '15%,': [1658], 'wind': [1661, 4313], 'northeasterly': [1664, 4312], 'speed': [1668], '1.5': [1670], '0.9': [1672], 'm/s.': [1673], 'There': [1674, 3436], 'few': [1676], 'precipitation': [1677], 'events': [1678], 'period.': [1682], 'These': [1683, 2626], 'typical': [1687], 'season': [1691, 4276], '1Open': [1695], 'figure': [1697, 3526], 'viewerPowerPoint': [1698, 3527], 'location': [1700], 'Operation': [1707], 'Other': [1711], 'Instruments': [1712], '[6]': [1713], 'An': [1714, 2051], 'nonclimate': [1725], 'controlled': [1726], 'room': [1727, 1760], 'top': [1730], 'floor': [1731], 'four-floor': [1734], 'academic': [1735], 'building.': [1736], 'A': [1737, 2208, 2261, 3648], 'PM2.5': [1738], 'cyclone': [1739], 'inlet': [1740, 1904, 2012, 4187], 'set': [1742, 2453, 2878], 'up': [1743], 'roof': [1746], 'building': [1749], 'remove': [1751], 'coarse': [1752], 'introduce': [1755, 2617], 'stream': [1757], 'into': [1758, 2631, 3472], 'through': [1761, 2010, 4308], 'copper': [1763, 1782], 'tube': [1764, 1783], 'flow': [1767, 1788, 2073], 'rate': [1768, 1789, 2074], '10': [1770, 1820, 3047, 3221], 'l': [1771, 2080], 'min−1.': [1772, 1793], 'sampled': [1775], 'isokinetically': [1776], 'center': [1779], 'without': [1784, 3242, 4463], 'drying': [1785], '80': [1791], 'cc': [1792], 'detailed': [1795], 'instrumental': [1796], 'description': [1797], 'DeCarlo': [1803, 2117, 2379, 2938], 'al.': [1805, 2119, 2499, 2657, 3725, 4359], '[2006].': [1806, 2120], 'operated': [1812, 3107, 3199], 'cycle': [1815], 'five': [1817], 'modes': [1818, 1852], 'every': [1819, 3223], 'min,': [1821], 'including:': [1822], 'min': [1824, 1837, 1848, 1865], 'V': [1825, 1861], 'obtain': [1828, 1841, 2429], 'nonrefractory': [1834, 1993, 2029, 4454], 'species;': [1835, 3592], 'W': [1838, 1883], 'data;': [1845], '"2': [1847], 'PToF': [1849, 1876], '(particle': [1850], 'time-of-flight)"': [1851], 'determine': [1854], 'distributions': [1856, 2101, 3588, 4020, 4109], 'species': [1858, 2030, 2105, 2176, 2414, 3146, 3209, 3337, 3490, 3556, 3701, 3806, 3825, 3968, 4023, 4112, 4370, 4595], 'under': [1859, 1881], 'mode;': [1862], 'Soft-EI': [1866, 1890], 'EI': [1871], 'voltage': [1872], '(∼13': [1873], 'eV).': [1874], 'not': [1879, 1894, 2795, 3288, 3763], 'run': [1880], 'because': [1885, 1997, 2792, 3275, 3699], 'poor': [1887], 'signal-to-noise.': [1888], 'included': [1895], 'paper.': [1898], 'calibrated': [1902], 'flow,': [1905], 'ionization': [1906, 2235], 'efficiency': [1907, 2015, 2162, 2236, 4183, 4202], '(IE),': [1908], 'sizing': [1911], 'beginning,': [1914], 'middle,': [1916], 'end': [1919], 'following': [1923], 'standard': [1925, 3365], 'protocols': [1926], '[Jayne': [1927, 2018, 4221], '2000;': [1930, 2021, 4224], 'Jimenez': [1931], '2003;': [1934, 2552, 4008], 'Drewnick': [1935], '2005].': [1938, 4016], 'calibration': [1940, 1953], 'IE': [1942], 'used': [1943, 2056, 2085, 2139, 2168, 2239, 2267, 2365, 2502, 2511, 2569, 2882, 2930, 3460], 'size-selected': [1944], 'pure': [1945, 2275], 'monodisperse': [1957], 'polystyrene': [1958], 'latex': [1959], 'spheres': [1960], '(PSL,': [1961], 'density': [1962, 3451, 4158], '=': [1963, 2227, 2402, 3005, 3029, 3049, 3070, 3073, 3652, 4207], '1.05': [1964], 'g': [1965], 'cm−3)': [1966], '(Duke': [1967], 'Scientific,': [1968], 'Palo': [1969], 'Alto,': [1970], 'California,': [1971], 'USA)': [1972], 'nominal': [1974], 'diameters': [1975, 2003], '100–700': [1977], 'nm.': [1978, 2092, 4250], '[7]': [1979], 'should': [1981, 4176], 'all': [1985, 3062, 3336], 'AMS': [1986, 2220, 2441, 3376, 3459, 3479, 3591, 3623, 3713, 3747, 3971, 4186, 4286, 4342], 'measurements': [1987, 1996, 2203, 3417], 'typically': [1989, 4123], 'referred': [1990], '(NR-PM1)': [1995], '(1)': [1998], 'vacuum': [2001, 3994], 'aerodynamic': [2002, 3995, 4132], '1': [2005, 2695, 2776, 2999, 4208], 'μm': [2006, 4130, 4209], 'transmitted': [2009], '30%–50%': [2017, 4204], 'Liu': [2022, 4225], '(2)': [2027], 'only': [2028], 'can': [2031, 2616, 2870, 2928, 3154, 3268, 3702, 3856, 4319], 'evaporate': [2032], 'vaporizer': [2035], '(typically': [2037], '600°C)': [2038], 'detected': [2042, 3168, 3248], '[Liu': [2043], 'Canagaratna': [2047], '2007].': [2050, 2207], 'aethalometer': [2052, 2077], '(AE-31,': [2053], 'Magee)': [2054], 'simultaneous': [2058], 'refractory': [2061], '(BC)': [2064], 'resolution': [2068, 2342], '5': [2070, 2079], 'min.': [2071], 'min−1': [2081], 'wavelength': [2084], 'derive': [2087], 'BC': [2088, 4414], '880': [2091], 'Data': [2094, 2307], 'Processing': [2095], '[8]': [2096], 'Mass': [2097], 'methods': [2114, 2295, 3733, 3777], 'outlined': [2115], 'Standard': [2121], 'ToF-AMS': [2122], 'software': [2125], 'packages': [2126], '(SQUIRREL': [2127], 'v1.49': [2128], 'PIKA': [2130], 'v1.08)': [2131], 'downloaded': [2132], 'ToF-AMS-Resources': [2135], 'webpage': [2136], '(http://cires.colorado.edu/jimenez-group/ToFAMSResources/ToFSoftware/index.html)': [2137], 'generate': [2141], 'unit': [2142, 2340], 'V-mode': [2149], 'W-mode': [2151], 'data,': [2152], 'For': [2154, 2965], 'calculations,': [2157], 'empirical': [2159], 'collection': [2161], '(CE)': [2163], '0.5': [2166, 2228], 'account': [2170, 3473], 'incomplete': [2173], 'detection': [2174], 'bouncing': [2180], 'vaporizer.': [2183], 'Many': [2184], 'CE': [2191, 2226, 3457], 'values': [2192, 2238, 2411, 2527, 2720, 2768, 2787, 2857, 2869], '∼0.5': [2194], 'produce': [2195], 'compare': [2199], 'collocated': [2202, 3398], '[Canagaratna': [2204], 'Q-AMS': [2210], 'study': [2211, 2242, 3463], 'good': [2216, 3649], 'agreement': [2217], 'other': [2222], 'instruments': [2223], 'when': [2224, 3470, 3829, 3949], 'assuming': [2225, 3406], '[Takegawa': [2229], '2009].': [2232, 2556, 2625, 2894, 4174, 4232], '(RIE)': [2237], '1.2': [2244], 'sulfate,': [2246, 3635, 4114], '1.1': [2247], 'nitrate,': [2249, 3636, 4115], '1.3': [2250], '1.4': [2254], 'organics': [2256, 3839, 3865, 3907, 4042, 4518], '[Jimenez': [2257], '2003].': [2260, 2687], 'RIE': [2262], 'value': [2263, 2560, 2574, 2774], '4.0': [2265], 'NH4NO3': [2276], 'particles.': [2277], 'Elemental': [2278], 'identified': [2284], 'positive': [2286, 2312, 3440], '(PMF)': [2289], 'carried': [2291], 'out': [2292], 'described': [2296], 'previously': [2297], '[Aiken': [2298], '2007,': [2301], 'Analysis': [2304], 'HR-MS': [2306], '[9]': [2308], 'study,': [2311, 2807], '[Paatero': [2316, 2684], 'Tapper,': [2318], '1994]': [2319], '(HR-MS)': [2327], '(m/z': [2328], '12–150)': [2329], 'identify': [2334], 'components.': [2337, 2638], 'Compared': [2338], '(UMR)': [2343], 'spectra,': [2344], 'provide': [2348], 'much': [2349, 4418], 'better': [2350, 2873], 'separation': [2351], 'different': [2353, 2707, 2951, 3805, 4593], 'successfully': [2364], 'several': [2367], '[Docherty': [2371], '2008;': [2374], 'Aiken': [2375], '2009;': [2378], '2010;': [2382, 2937], '2010].': [2386, 2941, 3721, 3920, 3964, 4090, 4500], 'analysis,': [2390], 'observed': [2392, 2561, 3444, 3660, 3705, 4070, 4257, 4333, 4371, 4470, 4537, 4559, 4606, 4647], 'represented': [2395], 'bilinear': [2398], 'model': [2400, 2419], 'xij': [2401, 2407], 'Σpgipfpj': [2403], '+': [2404, 3294], 'eij': [2405], 'where': [2406, 3906, 4629], 'j': [2413], 'i': [2416], 'samples.': [2417], 'solved': [2421], 'least': [2424, 2740], 'squares': [2425, 2467, 2730], 'fitting': [2426, 2458, 2803], 'process': [2427, 2459], 'P': [2430], 'factors': [2431, 2825, 2913, 2970], 'composed': [2432], 'constant': [2434], 'profiles': [2436, 2987], '(fj,': [2437], 'data)': [2442], 'varying': [2444, 2861, 2995, 3039], 'period': [2449], '(gi,': [2454], 'series).': [2456], 'minimizes': [2460], 'Q,': [2461], 'sum': [2465, 2536, 2727, 2905, 3334], 'ratios': [2470, 2651, 2723, 4558], 'fit': [2473, 2742, 2751, 2874], 'residuals': [2474, 2734, 2752], 'error': [2477, 2573, 2577, 2593], 'estimates': [2478], 'each': [2480, 2486, 2529, 2754, 2763, 2966, 3421], 'point.': [2482, 2765], 'residual': [2484], 'point': [2487, 2531, 2755], 'eij.': [2489], '[10]': [2490], 'evaluation': [2493], 'tool': [2494], 'Ulbrich': [2497, 2553, 2655], '[2009]': [2500], 'noise': [2509, 2526, 2559, 2649, 2760, 2786, 2791], 'matrices': [2510, 2594], 'generated': [2517, 3161], 'default': [2520], 'fragmentation': [2521], 'waves': [2522], 'PIKA.': [2524], 'electronic': [2538], 'Poisson': [2540], 'ion-counting': [2541], 'errors': [2542, 2797], 'relevant': [2545, 3787], 'ion': [2547, 3133, 3164, 3202, 3283], 'fragment': [2548], '[Allan': [2549, 2934, 4005], 'ions': [2563, 2580, 2627, 2660, 2675, 3159, 3633], 'low-signal': [2565], 'periods': [2567], 'minimum': [2572], 'matrix.': [2578], 'H2O+,': [2582], 'HO+,': [2583], 'O+,': [2584], 'CO+': [2586], 'removed': [2588, 2680], 'before': [2595, 3774], 'running': [2596], 'since': [2598], 'determined': [2601, 4140], 'according': [2602, 2644], 'relationship': [2605], 'CO2+': [2607, 2621], 'thus': [2609, 2880], 'them': [2611, 4430], 'additional': [2618, 4154], 'weight': [2619], '[Ulbrich': [2622, 2891], 'inserted': [2629], 'back': [2630, 3930], 'Ions': [2639], 'classified': [2641], 'down-weighted': [2643, 2667], 'signal': [2647, 3250], '(SNR)': [2650], 'discussed': [2653], '[2009].': [2658], 'Weak': [2659], '(0.2': [2661], '<': [2662, 2664, 2677], 'SNR': [2663], '2)': [2665], '3': [2672, 4586], 'bad': [2674], '(SNR': [2676], '0.2)': [2678], 'Hopke,': [2686], '[11]': [2688], '12': [2697], 'factors,': [2698], 'diagnostic': [2701], 'plots': [2702, 4601], 'solutions': [2708, 2814, 2955], 'S2': [2713], 'Q/Qexp': [2719, 2767, 2868, 2946, 3009, 3052], 'represent': [2721], 'actual': [2726], 'scaled': [2733], '(Q)': [2735], 'square': [2741], 'ideal': [2745, 2773], 'Q': [2746], '(Qexp)': [2747], 'if': [2749], 'equal': [2757], 'specified': [2761], 'greater': [2770, 2818], 'may': [2777], 'indicative': [2779, 3448, 3669], 'fact': [2782], 'input': [2785], 'underestimate': [2788], 'true': [2790], 'do': [2794], 'include': [2796], 'associated': [2798], 'peak': [2802, 4034], 'process.': [2804], 'it': [2808, 3879, 4446], '4': [2820], 'provided': [2821], 'new': [2823], 'meaningful': [2824], 'instead': [2827], 'displayed': [2828], 'splitting': [2829], 'behavior': [2830], 'existing': [2833], 'factors.': [2834], 'Thus': [2835], 'four': [2837, 2850, 2969, 3067], 'solution': [2839, 2852, 2890, 2916, 3075, 3082], 'chosen': [2841, 3032, 3078], 'optimal': [2844, 3081], 'solution.': [2845, 3036], 'sensitivity': [2847], 'rotation': [2854], 'starting': [2856], 'explored': [2859], 'FPEAK': [2863, 2952, 2994, 3024, 3028, 3069], 'seed': [2865, 2954, 3038, 3072], 'parameters.': [2866], 'Lower': [2867], 'indicate': [2871], 'criterion': [2885, 2933], 'choosing': [2887], 'suitable': [2889], 'addition,': [2896, 3937], 'R2': [2900, 2949, 3018, 3055], 'value,': [2901], 'correlation': [2908, 3426, 3567, 3650], 'coefficients': [2909], 'assigned': [2912, 2972], 'corresponding': [2919], 'tracers': [2920], '(refer': [2921], 'section': [2923, 2991, 3934], '3.4': [2924], 'tracers),': [2927], 'another': [2932], 'given': [2957], 'S3': [2960], 'solution,': [2967], 'HOA,': [2974], 'BBOA,': [2975], 'or': [2977], 'series': [2986, 3326, 3487, 3529, 3553], 'done': [2989], '3.4.': [2992], 'With': [2993, 3037], '–1': [2997], 'increment': [3001, 3045], '0.1': [3003], '(seed': [3004], '0),': [3006, 3050], 'lowest': [3008], 'around': [3013, 4032], '0': [3014, 3030, 3041, 3074], 'similar': [3022, 3955, 3974, 4018, 4566], '≥': [3025], '–0.2.': [3026], 'Therefore,': [3027, 3760, 3878, 4317], 'best': [3035], '250': [3043], '(FPEAK': [3048], 'almost': [3056, 4385], 'had': [3057, 4384], 'change.': [3059], 'Based': [3060], 'these': [3064, 3700], 'tests,': [3065], 'factor,': [3068], '0,': [3071], 'finally': [3077], 'study.': [3085], 'Acetonitrile': [3086, 3246], 'Measurement': [3087], 'PTR-MS': [3089, 3127, 3197], '[12]': [3090], '[Lindinger': [3101], '1998]': [3104], 'owned': [3105], '[Fortner': [3113], '2009]': [3116], 'volatile': [3121], 'compounds': [3123], '(VOCs).': [3124], 'Briefly,': [3125], 'consists': [3128], 'hollow': [3131], 'cathode': [3132], 'source,': [3134], 'drift-tube': [3136], 'reaction': [3137, 3296], 'chamber,': [3138], 'quadrupole': [3141], '(QMS).': [3144], 'VOC': [3145, 3192], 'affinity': [3150], 'water': [3153, 3244, 4165], 'protonated': [3156], 'hydronium': [3158, 3282], '(H3O+)': [3160], 'inside': [3162], 'QMS.': [3171], 'quantification': [3173], 'VOCs': [3176, 3238], 'kinetic-limited': [3181], 'theoretical': [3182], 'calculation': [3183], '(H3O+': [3184], '≫': [3185], 'product': [3186, 3291], 'ions)': [3187], 'calibrations': [3189], 'standards': [3193], '(Apel-Riemer).': [3194], 'Typically,': [3195], 'selective': [3201], 'monitor': [3203], '(SIM).': [3205], 'More': [3206], 'consecutively': [3211], 'scanned': [3212], 's': [3214], 'each.': [3215], 'Background': [3216], 'checks': [3217], '100': [3224], 'scan': [3225], 'cycles': [3226], 'custom': [3229], 'built': [3230], 'catalytic': [3231], 'converter,': [3232], 'capable': [3235], 'removing': [3237], 'changing': [3243], 'content.': [3245], 'm/e': [3252, 3272], '42.': [3253, 3273], 'Ion': [3254], 'fragment,': [3255], 'C3H8+,': [3256], 'produced': [3257], 'reactions': [3259], 'oxygen': [3261], 'molecule': [3262], 'cation,': [3263], 'O2+,': [3264], 'alkanes': [3267, 3295], 'contribute': [3270], 'However,': [3274, 3680, 4135], 'O2+': [3276, 3293], 'substantially': [3278], '(<3%)': [3284], 'C3H8+': [3286], '[de': [3297], 'Gouw': [3298], '2003],': [3301], 'potential': [3303], 'interference': [3304], 'considered': [3306], 'insignificant': [3307], 'work.': [3310], '3.': [3311], 'Results': [3312], 'Discussion': [3314], 'Size': [3318], 'Distribution': [3319], '[13]': [3320], '2a': [3322], 'shows': [3323, 3484, 3562, 3798], '(as': [3332, 4602], 'measured)': [3338], 'ranged': [3347], '3.0': [3349], '219': [3351], 'm−3,': [3353, 4462], '(mean': [3363], 'deviation).': [3366], 'To': [3367], 'validate': [3368], 'performance': [3370], '(abbreviated': [3374], 'hereafter),': [3377], 'volume': [3380], 'concentration,': [3381], 'number': [3387], 'distribution': [3389, 3537, 4039, 4067, 4138, 4237], '600': [3393, 4197, 4249], 'nm': [3394, 3992, 4198], 'Scanning': [3399], 'Mobility': [3400], 'Particle': [3401], 'Sizer': [3402], '(SMPS,': [3403], 'TSI)': [3404], 'spherical': [3407], 'particles,': [3408], 'plotted': [3411], '2a.': [3414], 'other,': [3422], 'linear': [3425, 3663], 'coefficient': [3427], '(R2)': [3428], '0.92': [3430], 'slope': [3433, 3656], '1.80.': [3435], 'possibly': [3438], 'bias': [3441], 'slope,': [3445], 'some': [3453, 3731, 4243, 4323, 4448], 'extent,': [3454], 'but': [3455, 3780, 4485], '(0.5)': [3464], 'still': [3465, 3751], 'seems': [3466], 'reasonable': [3469], 'taking': [3471], 'uncertainties': [3476], 'SMPS.': [3481], 'Figures': [3482], '2b': [3483], 'concentrations.': [3491], '(14.0%),': [3515], '2Open': [3524], 'Time': [3528], 'Shenzhen:': [3539], '(a)': [3540], 'SMPS': [3548], 'volume;': [3549], '(b)': [3550], '(inset': [3561], 'composition);': [3564], '(c)': [3565], 'predicted': [3570], 'NH4+': [3571, 3618], 'NH4+;': [3575], '(d)': [3576], 'percent': [3579], 'concentration;': [3584], '(e)': [3585], '(f)': [3594], 'comparison': [3596], 'Kaiping.': [3605, 4376], '[14]': [3606], 'balance': [3609, 3707], 'examined': [3614], 'comparing': [3616], 'amounts': [3626], 'needed': [3627], 'fully': [3629], 'neutralize': [3630], '[Zhang': [3639, 3676, 4481, 4552], '2007b],': [3642], '2c.': [3647], '(R2': [3651], '0.98)': [3653], '0.78': [3658], 'regression': [3664], 'NH4+measured/NH4+predicted,': [3666], 'presence': [3672, 3694, 4000], 'acidic': [3674], '2007b].': [3679], 'recent': [3682], 'evidence': [3683], 'observation': [3687], 'could': [3688, 4075], 'organonitrates': [3696, 3739, 3768, 3790], 'and/or': [3697], 'organosulfates': [3698, 3741, 3770, 3792], 'affect': [3703], 'nominally': [3711], 'inorganic': [3712], '[Farmer': [3718], 'Farmer': [3723], '[2010]': [3726], 'indirect': [3732], 'estimate': [3735], 'contents': [3737], 'state': [3743], 'art': [3746], 'measurements,': [3748], 'quite': [3752], 'uncertain': [3753], 'need': [3755], 'evaluated': [3758], 'further.': [3759], 'will': [3762, 3781], 'perform': [3764], 'estimation': [3766], 'reliable': [3776], 'developed,': [3779], 'pay': [3782], 'close': [3783], 'attention': [3784], 'future': [3786], 'aerosols.': [3794], '[15]': [3795], '2d': [3797], 'function': [3809], 'concentration.': [3814], 'interesting': [3817], 'note': [3819], 'exhibited': [3826], 'reverse': [3827], 'trends': [3828], 'increased:': [3834], 'contribution': [3837, 3940, 4050], 'trend': [3844, 3912, 3948], 'decreasing': [3852, 3911], 'trend.': [3853], 'feature': [3855, 3897], 'reflected': [3859], '2b,': [3862], 'sometimes': [3866], 'reached': [3867], 'maintained': [3873], 'relatively': [3874, 4569], 'stable': [3875], 'levels.': [3877], 'inferred': [3881], 'pollutant': [3887, 4402], 'origin': [3890], 'episodical.': [3895], 'contrast': [3899, 3925], 'summertime': [3903, 3957, 4490], 'large': [3910, 3988, 3999, 4533], 'reasons': [3922], 'analyzed': [3927], '3.5.': [3935], 'observations': [3958], 'Beijing': [3960, 4073, 4493, 4514], '[16]': [3965], 'All': [3966], 'distribution,': [3979], '2e,': [3984], 'peaking': [3985], '∼450': [3991], 'diameter': [3996, 4133], '(Dva),': [3997], 'indicating': [3998, 4396, 4516], 'Alfarra': [4009], '2004;': [4012, 4170], 'suggest': [4024], 'likely': [4029], 'internally': [4030], 'mixed': [4031], 'diameter.': [4036], 'pattern': [4040], 'broader': [4044], 'smaller': [4046, 4082], 'sizes': [4047], 'important': [4057, 4522], 'decreasing.': [4061], 'characteristic': [4063], 'attributed': [4077], 'fresh': [4079, 4449], 'emissions': [4080, 4428], 'carbonaceous': [4083], 'vehicles': [4086], 'Previous': [4091], 'size-resolved': [4092], 'characterization': [4094], 'offline': [4096], 'impactor': [4097], 'samplers': [4098], '(e.g.,': [4113], 'carbon)': [4118], 'peaked': [4124], 'range': [4127, 4536], '0.5–1': [4129], '(Da).': [4134], 'patterns': [4139, 4238], 'Da': [4142], 'Dva': [4145, 4195, 4206, 4247], 'cannot': [4146], 'directly': [4148], 'correspondence': [4152], 'needs': [4153], 'information': [4155], 'shape,': [4160], 'content': [4166], '[DeCarlo': [4167], 'Takegawa': [4171, 4229], 'transmission': [4182], 'usually': [4188], 'begins': [4189], 'decrease': [4191], '100%': [4193], '>': [4196, 4248], 'reaches': [4200], 'depending': [4210], 'exact': [4212], 'details': [4213], 'lens': [4216], 'assembly': [4217], 'pressure': [4220], 'So,': [4233], 'reported': [4239, 4349], 'here': [4240], 'might': [4241], 'miss': [4242], '[17]': [4251], 'mean': [4253, 4365, 4388, 4408, 4438, 4453, 4589, 4610, 4638], '(44.5': [4260], 'm−3)': [4262, 4270, 4480, 4496], 'significantly': [4264], '(33.1': [4268], 'Kaiping': [4272, 4295, 4346], '(12': [4277], '18': [4280], 'November,': [4281], '2008)': [4282], 'instrument': [4287], 'methodology': [4290], 'downwind': [4300], 'central': [4303], 'receiving': [4306], 'pollutants': [4307, 4332], 'fall.': [4316], 'regarded': [4321], 'extent': [4324], 'areas': [4330], 'Kaiping,': [4335, 4394, 4422, 4444], 'work': [4355], '[2011].': [4360], '2f': [4362], 'compares': [4363], 'individual': [4368], 'strongly': [4395], 'mainly': [4399], 'contrast,': [4406], 'organics,': [4411], 'chloride,': [4412], 'suggesting': [4423], 'Nitrate': [4433], 'little': [4436], 'implying': [4445], '(38.3': [4460], 'BC)': [4464], 'atmospheres': [4473, 4540], 'countries': [4476], '(below': [4477], '2007a],': [4484, 4555], '(61': [4494], 'organics/sulfate': [4505, 4534, 4557], '(1.62)': [4508], '(1.42),': [4515], 'played': [4519], 'When': [4529], 'worldwide,': [4541], 'e.g.,': [4542], '0.6': [4544], 'Pittsburgh': [4546], '7.1': [4548], 'Mexico': [4550], 'City': [4551], 'Chinese': [4563], 'megacities': [4564], 'difference': [4571], 'energy': [4573], 'structure': [4574], 'country.': [4578], 'Diurnal': [4579], 'Patterns': [4580], 'Species': [4583], '[18]': [4584], 'presents': [4587], 'Kaiping).': [4608], '(RH)': [4619], 'information,': [4628], 'present': [4631], 'strong': [4632], 'anticorrelation.': [4633], 'terms': [4635], 'hourly': [4637], 'concentrations,': [4639], 'like': [4645], 'what': [4646], 'Kaipi': [4649]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2149807357', 'counts_by_year': [{'year': 2024, 'cited_by_count': 7}, {'year': 2023, 'cited_by_count': 21}, {'year': 2022, 'cited_by_count': 33}, {'year': 2021, 'cited_by_count': 15}, {'year': 2020, 'cited_by_count': 21}, {'year': 2019, 'cited_by_count': 19}, {'year': 2018, 'cited_by_count': 17}, {'year': 2017, 'cited_by_count': 26}, {'year': 2016, 'cited_by_count': 21}, {'year': 2015, 'cited_by_count': 27}, {'year': 2014, 'cited_by_count': 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