[1] Ramanathan V, Chung C, Kim D, et al. Atmospheric brown clouds: Impacts on South Asian climate and hydrological cycle [J]. Proceedings of the National Academy of Sciences, 2005, 102(15): 5326-5333.
[2] Rosenfeld D. TRMM observed first direct evidence of smoke from forest fires inhibiting rainfall [J]. Geophysical Research Letters, 1999, 26(20): 3105-3108.
[3] Li C L, Bosch C, Kang S, et al. Sources of black carbon to the Himalayan-Tibetan Plateau glaciers [J]. Nature Communications, 2016, 7(1): 1-7.
[4] Menon S, Hansen J, Nazarenko L, et al. Climate effects of black carbon aerosols in China and India [J]. Science, 2002, 297(5590): 2250-2253.
[5] Bai Z P, Cai B B, Dong H Y, et al. Health effects of haze [J]. Environmental Pollution Control, 2006, 28(3): 198-201.
[6] Tao J, Zhu L H, Han J L, et al. Preliminary study on characteristics of black carbon aerosol pollution in Guangzhou during the spring of 2007 [J]. Climatic & Environmental Research, 2008, 13(5): 76-80.
[7] Tang X Y, Zhang Y H, Shao M. Atmospheric Environmental Chemistry-Second Edition [M]. Beijing: Higher Education Press, 2006: 548-550.
[8] Streets D G, Gupta S, Waldhoff S T, et al. Black carbon emissions in China [J]. Atmospheric Environment, 2001, 35(25): 4281-4296.
[9] Paliwal U, Sharma M, Burkhart J F. Monthly and spatially resolved black carbon emission inventory of India: Uncertainty analysis [J]. Atmospheric Chemistry and Physics, 2016, 16(19): 12457-12476.
[10] Hoesly R M, Smith S J, Feng L Y, et al. Historical (1750—2014) anthropogenic emissions of reactive gases and aerosols from the community emissions data system (CEDS) [J]. Geoscientific Model Development, 2018, 11(1): 369-408.
[11] Lee Y H, Lamarque J F, Flanner M G, et al. Evaluation of preindustrial to present-day black carbon and its albedo forcing from atmospheric chemistry and climate model intercomparison project (ACCMIP) [J]. Atmospheric Chemistry and Physics, 2013, 13(5): 2607-2634.
[12] Tang J, Wen Y P, Zhou L X, et al. Observational study of black carbon in clean air area of western China [J]. Journal of Applies Meteorological Science, 1999, 10(2): 160-170.
[13] Bergstrom R W, Pilewskie P, Russell P B, et al. Spectral absorption properties of atmospheric aerosols [J]. Atmospheric Chemistry and Physics, 2007, 7(23): 5937-5943.
[14] Bond T C, Bergstrom R W. Light absorption by carbonaceous particles: An investigative review [J]. Aerosol Science and Technology, 2006, 40(1): 27-67.
[15] Schwarz J P, Gao R S, Fahey D W, et al. Single-particle measurements of midlatitude black carbon and light-scattering aerosols from the boundary layer to the lower stratosphere [J]. Journal of Geophysical Research: Atmospheres, 2006, 111(D16):D16207.
[16] Medalia A I, Heckman F A. Morphology of aggregates-II. Size and shape factors of carbon black aggregates from electron microscopy [J]. Carbon, 1969, 7(5): 567-582.
[17] Fung K. Particulate carbon speciation by MnO2 oxidation [J]. Aerosol Science and Technology, 1990, 12(1): 122-127.
[18] Haynes B S, Wagner H G. Soot formation [J]. Progress in Energy and Combustion Science, 1981, 7(4): 229-273.
[19] Petzold A, Ogren J A, Fiebig M, et al. Recommendations for reporting “black carbon” measurements [J]. Atmospheric Chemistry and Physics, 2013, 13(16): 8365-8379.
[20] Schill G P, DeMott P J, Emerson E W, et al. The contribution of black carbon to global ice nucleating particle concentrations relevant to mixed-phase clouds [J]. Proceedings of the National Academy of Sciences, 2020, 117(37): 22705-22711.
[21] China S, Mazzoleni C, Gorkowski K, et al. Morphology and mixing state of individual freshly emitted wildfire carbonaceous particles [J]. Nature communications, 2013, 4: 2122.
[22] Hong J, Moon H, Kim J, et al. Differentiation of carbon black from black carbon using a ternary plot based on elemental analysis [J]. Chemosphere, 2021, 264: 128511.
[23] Wang J F, Wu Y Z, Ge X L, et al. Characteristics and sources of ambient refractory black carbon aerosols: Insights from soot particle aerosol mass spectrometer [J]. Atmospheric Environment, 2018, 185: 147-152.
[24] Pino-Cortés E, Díaz-Robles L A, Cubillos F, et al. The black carbon dispersion in the Southern Hemisphere and its transport and fate to Antarctica, an Anthropocene evidence for climate change policies [J]. Science of the Total Environment, 2021, 778: 146242.
[25] Kong Q X, Jiang C M, Ng A K Y. The economic impacts of restricting black carbon emissions on cargo shipping in the Polar code area [J]. Transportation Research Part A: Policy and Practice, 2021, 147: 159-176.
[26] Zhang Y L, Schnelle-Kreis J, Abbaszade G, et al. Source apportionment of elemental carbon in Beijing, China: Insights from radiocarbon and organic marker measurements [J]. Environmental Science and Technology, 2015, 49(14): 8408-8415.
[27] Willis M D, Healy R M, Riemer N, et al. Quantification of black carbon mixing state from traffic: Implications for aerosol optical properties [J]. Atmospheric Chemistry and Physics, 2016, 16(7): 4693-4706.
[28] Bond T C, Doherty S J, Fahey D W, et al. Bounding the role of black carbon in the climate system: A scientific assessment [J]. Journal of Geophysical Research: Atmospheres, 2013, 118(11): 5380-5552.
[29] Huang H, Li S C, Cao J J, et al. Progress of sampling and analysis of aerosol organic and elemental carbon [J]. Journal of Analytical Science, 2006, 22(2): 225-229.
[30] Weingartner E, Saathoff H, Schnaiter M, et al. Absorption of light by soot particles: Determination of the absorption coefficient by means of aethalometers [J]. Journal of Aerosol Science, 2003, 34(10): 1445-1463.
[31] Drinovec L, Mocnik G, Zotter P, et al. The “dual-spot” Aethalometer: An improved measurement of aerosol black carbon with real-time loading compensation [J]. Atmospheric Measurement Techniques, 2015, 8(5): 1965-1979.
[32] Ren D Y, Zhou Y, Wu G R, et al. Characteristics of atmospheric extinction and its relationship with fine particulate matter chemical composition in a polluted background at a suburban site in Hong Kong in winter [J]. Geochimica, 2021, 50(1): 12-21.
[33] Slowik J G, Cross E S, Han J H, et al. An inter-comparison of instruments measuring black carbon content of soot particles [J]. Aerosol Science and Technology, 2007, 41(3): 295-314.
[34] Petzold A, Schnlinner M. Multi-angle absorption photometry—a new method for the measurement of aerosol light absorption and atmospheric black carbon [J]. Journal of Aerosol Science, 2004, 35(4): 421-441.
[35] Virkkula A, Mkel T, Hillamo R, et al. A simple procedure for correcting loading effects of aethalometer data [J]. Journal of the Air & Waste Management Association, 2007, 57(10): 1214-1222.
[36] Onasch T B, Trimborn A, Fortner E C, et al. Soot particle aerosol mass spectrometer: Development, validation, and initial application [J]. Aerosol Science and Technology, 2012, 46(7): 804-817.
[37] Huang X F, Gao R S, Schwarz J P, et al. Black carbon measurements in the Pearl River Delta region of China [J]. Journal of Geophysical Research: Atmospheres, 2011, 116(D12): D12208.
[38] Sun T L, He L Y, Zeng L W, et al. Black carbon measurement during Beijing Paralympic Games [J]. China Environmental Science, 2012, 32(12): 2123-2127.
[39] Cimini D, De Angelis F, Dupont J C, et al. Mixing layer height retrievals by multichannel microwave radiometer observations [J]. Atmospheric Measurement Techniques, 2013, 6(11): 2941-2951.
[40] Sandradewi J, Prévt A S H, Weingartner E, et al. A study of wood burning and traffic aerosols in an Alpine valley using a multi-wavelength aethalometer [J]. Atmospheric Environment, 2008, 42(1): 101-112.
[41] Blanco-Alegre C, Calvo A I, Coz E, et al. Quantification of source specific black carbon scavenging using an aethalometer and a disdrometer [J]. Environmental Pollution, 2019, 246: 336-345.
[42] Kirchstetter T W, Novakov T, Hobbs P V. Evidence that the spectral dependence of light absorption by aerosols is affected by organic carbon [J]. Journal of Geophysical Research: Atmospheres, 2004, 109(D21): D21208.
[43] Qin S G, Tang J, Shi G Y, et al. Observational study of black carbon at Wenjiang, Sichuan Province [J]. Acta Scientiae Circumstantiae, 2007, 27(8): 1370-1376.
[44] Ran L, Deng Z Z, Wang P C, et al. Black carbon and wavelength-dependent aerosol absorption in the North China Plain based on two-year aethalometer measurements [J]. Atmospheric Environment, 2016, 142: 132-144.
[45] Wang Y Q, De Foy B, Schauer J J, et al. Impacts of regional transport on black carbon in Huairou, Beijing, China [J]. Environmental Pollution, 2017, 221: 75-84.
[46] Liu Y, Yan C, Zheng M. Source apportionment of black carbon during winter in Beijing [J]. Science of the Total Environment, 2018, 618: 531-541.
[47] Qi M Y, Wang L T, Zhang C Y, et al. Variation of black carbon aerosol concentration and its influencing factors in Handan, Hebei Province [J]. Acta Scientiae Circumstantiae, 2018, 38(5): 1751-1758.
[48] Yao Q, Cai Z Y, Han S Q, et al. Observational and analysis of black carbon aerosol in the autumn and winter in Tianjin [J]. Environmental Chemistry, 2012, 31(3): 324-329.
[49] Zhang C H, Cheng X H, Zhao T L, et al. Impact of meteorological conditions on high black carbon concentrations in urban area of Beijing in different seasons [J]. Acta Scientiae Circumstantiae, 2017, 37(6): 2255-2264.
[50] Liu X, Kong S F, Zheng S R, et al. Levels and sources of black carbon around the spring festival at a rural site of the North China Plain [J]. China Environmental Science, 2019, 39(8): 3169-3177.
[51] Zhang L, Shen F Z, Gao J, et al. Characteristics and potential sources of black carbon particles in suburban Nanjing, China [J]. Atmospheric Pollution Research, 2020, 11(5): 981-991.
[52] Jing A K, Zhu B, Ding D P, et al. Characteristics and source apportionment of black carbon in the Yangtze River Delta Region of China [J]. China Environmental Science, 2019, 39(9): 3585-3594.
[53] Xiao X Z, Liu P F, Geng F H, et al. Comparison of black carbon aerosols in urban and suburban areas of Shanghai [J]. Journal of Applied Meteorological Science, 2011, 22(2): 158-168.
[54] Xu C, Shen J D, Ye H, et al. Characteristics and source of black carbon aerosol pollution in Hangzhou [J]. China Environmental Science, 2014, 34(12): 3026-3033.
[55] Wang J F, Ge X L, Chen Y, et al. Highly time-resolved urban aerosol characteristics during springtime in Yangtze River Delta, China: Insights from soot particle aerosol mass spectrometry [J]. Atmospheric Chemistry and Physics, 2016, 16(14): 9109-9127.
[56] Zhuang B L, Wang T J, Liu J, et al. Continuous measurement of black carbon aerosol in urban Nanjing of Yangtze River Delta, China [J]. Atmospheric Environment, 2014, 89: 415-424.
[57] Ding M, Zou Q, Ge S, et al. Study on atmospheric black carbon aerosols concentration in Suzhou City [J]. Environmental Monitoring in China, 2014, 30(6): 67-71.
[58] Zhao J H, Wang Y T, Huang C, et al. The analysis on the monthly variation characteristics of the air trajectory of Wuhan area on basis of the mass concentration of BC [J]. DEStech Transactions on Environment, Energy and Earth Sciences, 2018 International Conference on Power, Energy and Environmental Engineering.
[59] Gong W, Zhang T H, Zhu Z, et al. Characteristics of PM1.0, PM2.5, and PM10, and their relation to black carbon in Wuhan, Central China [J]. Atmosphere, 2015, 6(9): 1377-1387.
[60] Lyu X P, Chen N, Guo H, et al. Chemical characteristics and causes of airborne particulate pollution in warm seasons in Wuhan, central China [J]. Atmospheric Chemistry and Physics, 2016, 16(16): 10671-10687.
[61] Deng W J, Zheng H L, Tsui A K Y, et al. Measurement and health risk assessment of PM2.5, flame retardants, carbonyls and black carbon in indoor and outdoor air in kindergartens in Hong Kong [J]. Environment International, 2016, 96: 65-74.
[62] Chen X C, Zhang Z S, Engling G, et al. Characterization of fine particulate black carbon in Guangzhou, a megacity of South China [J]. Atmospheric Pollution Research, 2014, 5(3): 361-370.
[63] Huang X F, Sun T L, Zeng L W, et al. Black carbon aerosol characterization in a coastal city in South China using a single particle soot photometer [J]. Atmospheric Environment, 2012, 51: 21-28.
[64] Wu D, Wu C, Liao B, et al. Black carbon over the South China Sea and in various continental locations in South China [J]. Atmospheric Chemistry and Physics, 2013, 13(24): 12257-12270.
[65] Lin W W, Dai J J, Liu R, et al. Integrated assessment of health risk and climate effects of black carbon in the Pearl River Delta region, China [J]. Environmental Research, 2019, 176: 108522.
[66] Chen H Z, Wu D, Liao B T, et al. Comparison of black carbon concentration variation between Dongguan and Maofengshan [J]. China Environmental Science, 2013, 33(4): 605-612.
[67] Cheng D, Wu C, Wu D, et al. Comparative study on the characteristics of black carbon aerosol in urban and suburban areas of Shenzhen [J]. China Environmental Science, 2018, 38(5): 1653-1662.
[68] Cao J J, Zhu C S, Chow J C, et al. Black carbon relationships with emissions and meteorology in Xi′an, China [J]. Atmospheric Research, 2009, 94(2): 194-202.
[69] Xu J Z, Shi J, Zhang Q, et al. Wintertime organic and inorganic aerosols in Lanzhou, China: Sources, processes, and comparison with the results during summer [J]. Atmospheric Chemistry and Physics, 2016, 16(23): 14937-14957.
[70] Ao Y, Dong X, Fan X L, et al. Charateristics and source analysis of black carbon in PM2.5 and PM10 of Guiyang City, China during autumn-winter period [J]. Environmental Pollution and Control, 2020, 42(11): 1345-1349.
[71] Li Y J, Zhang L, Cao X J, et al. Property of black carbon concentration over urban and suburban of Lanzhou [J]. China Environmental Science, 2014, 34(6): 1397-1403.
[72] Sun H H, Ni C J, Cui L. Characteristics of black carbon aerosol pollution in Chengdu and the relationship between meteorological factors [J]. Environmental Engineering, 2016, 34(6): 119-124.
[73] Zhang L, Zhang L,Zhang D L, et al. Property of black carbon concentration over outskirts of Lanzhou, Northwest China [J]. China Environmental Science, 2011, 31(8): 1248-1255.
[74] Zhong J, Zhai C Z, Yu J Y, et al. Concentration characteristics of black carbon aerosol and its impact factors in Chongqing core area [J]. Chinese Journal of Environmental Engineering, 2016, 10(2): 805-810.
[75] Saleh R, Robinson E S, Tkacik D S, et al. Brownness of organics in aerosols from biomass burning linked to their black carbon content [J]. Nature Geoscience, 2014, 7(9): 647-650.
[76] Arif M, Kumar R, Kumar R, et al. Assessment of indoor & outdoor black carbon emissions in rural areas of Indo-Gangetic Plain: Seasonal characteristics, source apportionment and radiative forcing [J]. Atmospheric Environment, 2018, 191: 227-240.
[77] Dumka U C, Kaskaoutis D G, Tiwari S, et al. Assessment of biomass burning and fossil fuel contribution to black carbon concentrations in Delhi during winter [J]. Atmospheric Environment, 2018, 194: 93-109.
[78] Gupta P, Singh S P, Jangid A, et al. Characterization of black carbon in the ambient air of Agra, India: Seasonal variation and meteorological influence [J]. Advances in Atmospheric Sciences, 2017, 34(9): 1082-1094.
[79] Rajesh T A, Ramachandran S. Black carbon aerosols over urban and high altitude remote regions: Characteristics and radiative implications [J]. Atmospheric Environment, 2018, 194: 110-122.
[80] Rehman I H, Ahmed T, Praveen P S, et al. Black carbon emissions from biomass and fossil fuels in rural India [J]. Atmospheric Chemistry and Physics, 2011, 11(14): 7289-7299.
[81] Singh S, Tiwari S, Hopke P K, et al. Ambient black carbon particulate matter in the coal region of Dhanbad, India [J]. Science of the Total Environment, 2018, 615: 955-963.
[82] Srivastava S, Kumar M, Singh R S, et al. Long-term observation of black carbon aerosols at an urban location over the central Indo-Gangetic Plain, South Asia [J]. Atmósfera, 2019, 32(2): 95-113.
[83] Reddy B S K, Kumar K R, Balakrishnaiah G, et al. Potential source regions contributing to seasonal variations of black carbon aerosols over Anantapur in Southeast India [J]. Aerosol and Air Quality Research, 2012, 12(3): 344-358.
[84] Lalchandani V, Kumar V, Tobler A, et al. Real-time characterization and source apportionment of fine particulate matter in the Delhi megacity area during late winter [J]. Science of the Total Environment, 2021, 770: 145324.
[85] Husain L, Dutkiewicz V A, Khan A J, et al. Characterization of carbonaceous aerosols in urban air [J]. Atmospheric Environment, 2007, 41(32): 6872-6883.
[86] Dutkiewicz V A, Alvi S, Ghauri B M, et al. Black carbon aerosols in urban air in South Asia [J]. Atmospheric Environment, 2009, 43(10): 1737-1744.
[87] Seneviratne M C S, Waduge V A, Hadagiripathira L, et al. Characterization and source apportionment of particulate pollution in Colombo, Sri Lanka [J]. Atmospheric Pollution Research, 2011, 2(2): 207-212.
[88] Alas H D, Müller T, Birmili W, et al. Spatial characterization of black carbon mass concentration in the atmosphere of a southeast Asian megacity: An air quality case study for Metro Manila, Philippines [J]. Aerosol and Air Quality Research, 2018, 18(9): 2301-2317.
[89] Pani S K, Wang S H, Lin N H, et al. Black carbon over an urban atmosphere in northern peninsular Southeast Asia: Characteristics, source apportionment, and associated health risks [J]. Environmental Pollution, 2020, 259: 113871.
[90] Putero D, Cristofanelli P, Marinoni A, et al. Seasonal variation of ozone and black carbon observed at Paknajol, an urban site in the Kathmandu Valley, Nepal [J]. Atmospheric Chemistry and Physics, 2015, 15(24): 13957-13971.
[91] Kanaya Y, Pan X, Miyakawa T, et al. Long-term observations of black carbon mass concentrations at Fukue Island, western Japan, during 2009-2015: Constraining wet removal rates and emission strengths from East Asia [J]. Atmospheric Chemistry and Physics, 2016, 16(16): 10689-10705.
[92] Kanaya Y, Yamaji K, Miyakawa T, et al. Rapid reduction in black carbon emissions from China: Evidence from 2009-2019 observations on Fukue Island, Japan [J]. Atmospheric Chemistry and Physics, 2020, 20(11): 6339-6356.
[93] Liu J W, Andersson A, Zhong G, et al. Isotope constraints of the strong influence of biomass burning to climate-forcing black carbon aerosols over Southeast Asia [J]. Science of the Total Environment, 2020, 744: 140359.
[94] Cui S J, Xian J K, Shen F Z, et al. One-Year real-time measurement of black carbon in the rural area of Qingdao, Northeastern China: Seasonal variations, meteorological effects, and the COVID-19 case analysis [J]. Atmosphere, 2021, 12(3): 394.
[95] Pani S K, Ou-Yang C F, Wang S H, et al. Relationship between long-range transported atmospheric black carbon and carbon monoxide at a high-altitude background station in East Asia [J]. Atmospheric Environment, 2019, 210: 86-99.
[96] Chen X T, Kang S C, Cong Z Y, et al. Concentration, temporal variation, and sources of black carbon in the Mt. Everest region retrieved by real-time observation and simulation [J]. Atmospheric Chemistry and Physics, 2018, 18(17): 12859-12875.
[97] Wang J, Zhang Q, Chen M, et al. First chemical characterization of refractory black carbon aerosols and associated coatings over the Tibetan Plateau (4730 m asl) [J]. Environmental Science & Technology, 2017, 51(24): 14072-14082.
[98] Du L, Meng X Y, Li G, et al. Preliminary analysis of concentration variations of black carbon [J]. Environmental Monitoring in China, 2013, 29(5): 69-72.
[99] Wan X, Kang S, Wang Y, et al. Size distribution of carbonaceous aerosols at a high-altitude site on the central Tibetan Plateau (Nam Co Station, 4730 m asl) [J]. Atmospheric Research, 2015, 153: 155-164.
[100] Dumka U C, Moorthy K K, Kumar R, et al. Characteristics of aerosol black carbon mass concentration over a high altitude location in the Central Himalayas from multi-year measurements [J]. Atmospheric Research, 2010, 96(4): 510-521.
[101] Choi Y, Kanaya Y, Park S M, et al. Regional variability in black carbon and carbon monoxide ratio from long-term observations over East Asia: assessment of representativeness for black carbon (BC) and carbon monoxide (CO) emission inventories [J]. Atmospheric Chemistry and Physics, 2020, 20(1): 83-98.
[102] Panicker A S, Park S H, Lee D I, et al. Observations of black carbon characteristics and radiative forcing over a global atmosphere watch supersite in Korea [J]. Atmospheric Environment, 2013, 77: 98-104.
[103] Bloom D E, Canning D, Malaney P N. Population dynamics and economic growth in Asia [J]. Population and Development Review, 2000, 26: 257-290.
[104] Qi W, Liu S H, Zhao M F. Study on the stability of Hu Line and different spatial patterns of population growth on its both sides [J]. Acta Geographica Sinica, 2015, 70(4): 551-566.
[105] Zheng X B, Luo Y X. Zhao T L, et al. Geographical and climatological characterization of aerosol distribution in China [J]. Scientia Geographica Sinica, 2012, 32(3): 265-272.
[106] Zhao S Y, Feng T, Tie X X, et al. Air pollution zone migrates south driven by East Asian winter monsoon and climate change [J]. Geophysical Research Letters, 2021, 48(10): e2021GL092672.
[107] Dumka U C, Kaskaoutis D G, Devara P C S, et al. Year-long variability of the fossil fuel and wood burning black carbon components at a rural site in southern Delhi outskirts [J]. Atmospheric Research, 2019, 216: 11-25.
[108] Zhang Q, Shen Z X, Ning Z, et al. Characteristics and source apportionment of winter black carbon aerosols in two Chinese megacities of Xi′an and Hong Kong [J]. Environmental Science and Pollution Research, 2018, 25(33): 33783-33793.
[109] Deng J J, Guo H, Zhang H L, et al. Source apportionment of black carbon aerosols from light absorption observation and source-oriented modeling: An implication in a coastal city in China [J]. Atmospheric Chemistry and Physics, 2020, 20(22): 14419-14435.
[110] Pani S K, Wang S H, Lin N H, et al. Black carbon over an urban atmosphere in northern peninsular Southeast Asia: Characteristics, source apportionment, and associated health risks [J]. Environmental Pollution, 2020, 259: 113871.
[111] Shen L J, Wang H L, Kong X C, et al. Characterization of black carbon aerosol in the Yangtze River Delta, China: Seasonal variation and source apportionment [J]. Atmospheric Pollution Research, 2021, 12(1): 195-209.
[112] Kant Y, Shaik D S, Mitra D, et al. Black carbon aerosol quantification over north-west Himalayas: Seasonal heterogeneity, source apportionment and radiative forcing [J]. Environmental Pollution, 2020, 257: 113446.
[113] Kaur P, Srinivasan P, Dhar P, et al. Study of spectral characteristics of black carbon from biomass burning and source apportionment over Agartala in the northeastern India [J]. Environmental Science and Pollution Research, 2020, 27(14): 16584-16598.
[114] Meena G S, Mukherjee S, Buchunde P, et al. Seasonal variability and source apportionment of black carbon over a rural high-altitude and an urban site in western India [J]. Atmospheric Pollution Research, 2021, 12(2): 32-45.
[115] Bisht D S, Dumka U C, Kaskaoutis D G, et al. Carbonaceous aerosols and pollutants over Delhi urban environment: Temporal evolution, source apportionment and radiative forcing [J]. Science of the Total Environment, 2015, 521: 431-445.
[116] Rajesh T A, Ramachandran S. Characteristics and source apportionment of black carbon aerosols over an urban site [J]. Environmental Science and Pollution Research, 2017, 24(9): 8411-8424.
[117] Barman N, Gokhale S. Urban black carbon-source apportionment, emissions and long-range transport over the Brahmaputra River Valley [J]. Science of the Total Environment, 2019, 693: 133577.
[118] Wei C, Wang M H, Fu Q Y, et al. Temporal characteristics and potential sources of black carbon in megacity Shanghai, China [J]. Journal of Geophysical Research: Atmospheres, 2020, 125(9): e2019JD031827.
[119] Mbengue S, Serfozo N, Schwarz J, et al. Characterization of equivalent black carbon at a regional background site in Central Europe: Variability and source apportionment [J]. Environmental Pollution, 2020, 260: 113771.
[120] Ramachandran S, Rajesh T A. Black carbon aerosol mass concentrations over Ahmedabad, an urban location in western India: Comparison with urban sites in Asia, Europe, Canada, and the United States [J]. Journal of Geophysical Research: Atmospheres, 2007, 112(D6): D6211.
[121] Zhang X R, Zhu Z J, Cao F Y, et al. Source apportionment of absorption enhancement of black carbon in different environments of China [J]. Science of the Total Environment, 2021, 755: 142685.
[122] Liu D, Joshi R, Wang J, et al. Contrasting physical properties of black carbon in urban Beijing between winter and summer [J]. Atmospheric Chemistry and Physics, 2019, 19(10): 6749-6769.
[123] Penner J E, Eddleman H, Novakov T. Towards the development of a global inventory for black carbon emissions [J]. Atmospheric Environment. Part A. General Topics, 1993, 27(8): 1277-1295.
[124] Tang L L, Zhu Y, Niu S J, et al. Observation of black carbon in fine particulate matter in the north suburb of Nanjing [J]. Acta Scientiae Circumstantiae, 2011, 31(4): 709-716.
[125] Yu P, Froyd K D, Portmann R W, et al. Efficient in-cloud removal of aerosols by deep convection [J]. Geophysical Research Letters, 2019, 46(2): 1061-1069.
[126] Sharma S, Brook J R, Cachier H, et al. Light absorption and thermal measurements of black carbon in different regions of Canada [J]. Journal of Geophysical Research: Atmospheres, 2002, 107(D24): 4771.
[127] Raupach M R, Finnigan J J. Scale issues in boundary-layer meteorology: Surface energy balances in heterogeneous terrain [J]. Hydrological Processes, 1995, 9(5/6): 589-612.
[128] Xu J, Bergin M H, Yu X, et al. Measurement of aerosol chemical, physical and radiative properties in the Yangtze delta region of China [J]. Atmospheric Environment, 2002, 36(2): 161-173.
[129] Xu J, Bergin M H, Greenwald R, et al. Aerosol chemical, physical, and radiative characteristics near a desert source region of northwest China during ACE-Asia [J]. Journal of Geophysical Research: Atmospheres, 2004, 109(D19): D19S03.
[130] Li C, Marufu L T, Dickerson R R, et al. In situ measurements of trace gases and aerosol optical properties at a rural site in northern China during east Asian study of tropospheric aerosols: An International regional experiment 2005 [J]. Journal of Geophysical Research: Atmospheres, 2007, 112(D22): D22S04.
[131] Wu Y F, Zhang R J, Pu Y, et al. Aerosol optical properties observed at a semi-arid rural site in northeastern China [J]. Aerosol and Air Quality Research, 2012, 12(4): 503-514.
[132] Wang J, Virkkula A, Gao Y, et al. Observations of aerosol optical properties at a coastal site in Hong Kong, South China [J]. Atmospheric Chemistry and Physics, 2017, 17(4): 2653-2671.
[133] Sun J, Xie C, Xu W, et al. Light absorption of black carbon and brown carbon in winter in North China Plain: Comparisons between urban and rural sites [J]. Science of the Total Environment, 2021, 770: 144821.
[134] Wang H B, Shi G M, Tian M, et al. Aerosol optical properties and chemical composition apportionment in Sichuan Basin, China [J]. Science of the Total Environment, 2017, 577: 245-257.
[135] Nakayama T, Ikeda Y, Sawada Y, et al. Properties of light-absorbing aerosols in the Nagoya urban area, Japan, in August 2011 and January 2012: Contributions of brown carbon and lensing effect [J]. Journal of Geophysical Research:Atmospheres, 2014, 119(22): 12721-12739.
[136] Xu J, Tao J, Zhang R, et al. Measurements of surface aerosol optical properties in winter of Shanghai [J]. Atmospheric Research, 2012, 109/110: 25-35.
[137] Gong W, Zhang M, Han G, et al. An investigation of aerosol scattering and absorption properties in Wuhan, Central China [J]. Atmosphere, 2015, 6(4): 503-520.
[138] Andreae M O, Schmid O, Yang H, et al. Optical properties and chemical composition of the atmospheric aerosol in urban Guangzhou, China [J]. Atmospheric Environment, 2008, 42(25): 6335-6350.
[139] Wang X, Pu W, Shi J, et al. A comparison of the physical and optical properties of anthropogenic air pollutants and mineral dust over Northwest China [J]. Journal of Meteorological Research, 2015, 29(2): 180-200.
[140] Yan P, Tang J, Huang J, et al. The measurement of aerosol optical properties at a rural site in Northern China [J]. Atmospheric Chemistry and Physics, 2008, 8(8): 2229-2242.
[141] Flowers B A, Dubey M K, Mazzoleni C, et al. Optical-chemical-microphysical relationships and closure studies for mixed carbonaceous aerosols observed at Jeju Island; 3-laser photoacoustic spectrometer, particle sizing, and filter analysis [J]. Atmospheric Chemistry and Physics, 2010, 10(21): 10387-10398.
[142] Huang C C, Ma Y, Zheng J. Aerosol optical properties and enhancement of black carbon light absorption in Nanjing during winter [J]. Environmental Science, 2018, 39(7): 3057-3066.
[143] Deng J J, Zhang Y R, Hong Y W, et al. Optical properties of PM2.5 and the impacts of chemical compositions in the coastal city Xiamen in China [J]. Science of the Total Environment, 2016, 557/558: 665-675.
[144] Ma N, Zhao C S, Nowak A, et al. Aerosol optical properties in the North China Plain during HaChi campaign: An in-situ optical closure study [J]. Atmospheric Chemistry and Physics, 2011, 11(12): 5959-5973.
[145] Cheng Y F, Wiedensohler A, Eichler H, et al. Aerosol optical properties and related chemical apportionment at Xinken in Pearl River Delta of China [J]. Atmospheric Environment, 2008, 42(25): 6351-6372.
[146] Sun T L, He L Y, Huang X F, et al. Characteristics of the size distribution and mixing state of black carbon aerosol in Shenzhen in winter [J]. Chinese Science Bulletin, 2011, 56(21): 1703-1710.
[147] Ueda S, Nakayama T, Taketani F, et al. Light absorption and morphological properties of soot-containing aerosols observed at an East Asian outflow site, Noto Peninsula, Japan [J]. Atmospheric Chemistry and Physics, 2016, 16(4): 2525-2541.
[148] Moteki N, Kondo Y, Miyazaki Y, et al. Evolution of mixing state of black carbon particles: Aircraft measurements over the western Pacific in March 2004 [J]. Geophysical Research Letters, 2007, 34(11): L11803.
[149] Liu D, Allan J, Whitehead J, et al. Ambient black carbon particle hygroscopic properties controlled by mixing state and composition [J]. Atmospheric Chemistry and Physics, 2013, 13(4): 2015-2029.
[150] Xie C H, Xu W Q, Wang J F, et al. Light absorption enhancement of black carbon in urban Beijing in summer [J]. Atmospheric Environment, 2019, 213: 499-504.
