秸秆焚烧导致成都地区一次典型空气污染过程的分析
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摘要
2014年5月7~8日成都地区发生了一次重空气污染过程,CO、颗粒物及黑炭等污染物浓度迅速增高。本文基于环境一号卫星资料、微脉冲激光雷达的遥感数据及HYSPLIT模式模拟的后向轨迹,并结合中尺度大气化学传输模型WRF-CHEM(Weather Research Forecasting Model with Chemistry)分析此次污染过程中污染物的扩散条件、来源及其输送特征。研究表明,污染过程期间成都、眉山及乐山地区的平均通风系数为明显低值区,污染物在该地区不断堆积,污染持续加重。重污染时段内,眉山、资阳、内江、自贡和德阳等地存在秸秆焚烧点,7日成都地区的污染物主要来源于眉山,眉山和德阳两个地区的污染物在成都积聚造成了8日的高浓度污染,其中德阳地区的污染物是主要贡献者。区域秸秆焚烧污染物的输送及成都地区较差的大气扩散条件共同造成了本次重空气污染过程。
引文
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[2]Zhang Y,Liu Z,Wang Y,et al.Inversion of Aerosol Optical Depth Based on the CCD and IRS Sensors on the HJ-1Satellites[J].Remote Sensing.2014,6(9):8760-8778.
[3]王中挺,厉青,陶金花,李莘莘,王桥,陈良富,环境一号卫星CCD相机应用于陆地气溶胶的监测[J].中国环境科学,2009,29(9):902-907.
[4]马井会,顾松强,陈敏,等.结合激光雷达分析上海地区一次连续浮尘天气过程[J].生态学报,2012,32(4):1085-1096.
[5]邓涛,吴兑,邓雪娇,等.广州地区一次严重灰霾过程的垂直探测[J].中国科学:地球科学,2014,44(10):2307-2314.
[6]Draxler R R,Hess G D.An overview of the HYSPLIT-4 modeling system for trajectories[J].Australian Meteorological Magazine,1998,47(4):295-308.
[7]黄健,颜鹏,Roland R D.利用HYSPLIt-4模式分析珠海地面SO2浓度的变化规律[[J].热带气象学报,2002,18(4):407-414.
[8]Fei Jiang,Qian Liu,Xiaoxian Huang,et al.Regional modeling of secondary organic aerosol over China using WRF/Chem[J].Journal of Aerosol Science,2012,43:57-73.
[9]G.Grell,S.R.Freitas,M.Stuefer,et al.Inclusion of biomass burning in WRF-Chem:impact of wildfires on weather forecasts[J].Atmos.Chem.Phys.Discuss,2010,10:1-36.
[10]W.R.Sessions,H.E.Fuelberg,R.A.Kahn,et al.An investigation of methods for injecting emissions from boreal wildfires using WRF-Chem during ARCTAS[J].Atmos.Chem.Phys.Discuss.2010,10:26551-26606.
[11]Evangelista H,Maldonado J,Godoi R H M,et al.Source and transport of urban and biomass burning aerosol black carbon at the South-West Atlantic Coast[J].Atmos Chem,2007,51(3):403-414.
[12]Badarinath K V S,Kharol S K,Sharma A R,et al.Analysis of aerosol and carbon monoxide characteristics over Arabian Sea during crop residue burning period in the Indo-Gangetic Plains using multi-satellite remote sensing datasets[J].Journal of Atmospheric and Solar-Terrestrial Physics,2009,71:1267-1276.
[13]Susheel K Mittal,Nirankar S,Ravinder A,et al.Ambient air quality during wheat and rice crop stubble burning episodes in Patiala[J].Atmospheric Environment,2009,43:238-244.
[14]何敏,王幸锐,韩丽等.四川省秸秆露天燃烧污染物排放清单及时空分布特征[J].环境科学,2015,36(4):1208-1210.
[15]张洋,刘志红,于明洋,等.四川省气溶胶光学厚度时空分布特征[J].四川环境,2014,03:48-53.
[16]张颖,刘志红,吕晓彤,等.四川盆地一次污染过程的WRF模式参数化方案最优配置[J/OL].环境科学学报,http://www.cnki.netkcmsdetail/11.1843.X.20160107.2305.015.html,2016-01-07.
[17]张碧辉.沈阳城市边界层结构及SO2污染物扩散的模拟研究[D].北京:北京大学.2011:92-97.
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