摘要
2013年9月14~17日成都及周边地区出现了一次秸秆焚烧空气污染过程,成都、德阳受污染影响较严重,乐山、眉山影响相对较轻。基于空气污染指数API,结合雷达消光系数反演图、在线气团后向轨迹及探空斜温图分析本次空气污染过程,主要是由成都城区以南地区秸秆焚烧及区域边界层辐射逆温等不利扩散气象条件共同造成的。
During September 14 to 17 of 2013, Chengdu and its surrounding cities experienced a serious haze pollution caused by straw burning. The pollution in Chengdu and Deyang was more serious, while that in Leshan and Meishan was relatively slight. On the basis of the air pollution index（API）, by use of extinction coefficient inversion with the back trajectory analysis of HYSPLIYT model and meteorological data, features and mechanism of the air pollution were analyzed. The results showed that such pollution was caused by straw burning in the south area of Chengdu and the meteorological conditions unfavorable for dispersion such as radiation inversion at the regional boundary layer in a synergistic way.
出处
《环境保护科学》
CAS
2015年第1期65-69,共5页
Environmental Protection Science
关键词
秸秆焚烧
消光系数
后向轨迹
空气污染
Straw Burning
Extinction Coefficient
Back Trajectory
Air Pollution
