摘要
研究了2013年3月在江苏范围内的一次重污染天气过程,重点分析苏州在此次污染过程中大气污染的变化特征。污染过程中,苏州市颗粒物浓度上升较为明显,PM10的小时质量浓度最高达548μg/m3,PM2.5质量浓度也达到197μg/m3,污染持续时间为2 d,3月8—9日当地空气质量均达到中度污染水平。根据后向轨迹模型、颗粒物离子浓度的分析,此次污染是由外来浮尘及苏州本地污染物排放所造成的区域霾污染影响所致。根据监测结果与实际污染特征,针对性地提出了对策和措施。
A process of heavy pollution weather in March 2013 with in Jiangsu area is described, which focuses on analyzing the process of pollution in Suzhou. In the pollution incident, particulate concentration in Suzhou rised more significantly, there into the highest Hour concentration of PM10 was up to 548 μg/m3 , and Hour concentration of PM2.5 also reached 197 μg/m3. The pollution continued 2 days, during which pollution of local air reached moderate level on both March 8th and 9th. On the basis of backward trajectory model and analysis of particulate matters concentration, this pollution is caused by floating dust from outside as well as locally regional haze pollution. According to the monitoring results and actual features of pollution, we pertinently put forward concrete countermeasures to control all of the pollution sources.
出处
《中国环境监测》
CAS
CSCD
北大核心
2015年第4期44-47,共4页
Environmental Monitoring in China
基金
国家自然科学基金资助项目(201009001)
