Abstract:The air-quality model CMAQ/MM5 was used to investigate the contributions of various industrial sectors to PM2.5 pollution in different districts of Tianjin, China. Model simulations were conducted for January and July to represent typical winter and summer season, respectively. Known industrial sources were grouped into eight categories and “Zero-out” approach was used to identify the contributions of each category to PM2.5. Model results suggested that heating industry contributed most in winter in every district of Tianjin, accounting for more than 50% of the total PM2.5. Contributions from petroleum refinery and chemical manufacturing accounted for 7% of PM2.5 in winter and 23% in summer, and contributions from ferrous-metals smeltering and cement manufacturing accounted for 30% in summer and 65% in winter. Power plant industry was identified only as a minor contributor in both winter and summer among all the districts except Jixian. Geographical variations were found, for example, cement manufacturing was a major contributor in Hebei, Beic-hen, and Honqiao district, and chemical manufacturing was a major contributor in Ninghe and Binhai new area.
陈璐, 周阳, 姚立英, 王伟, 吉晟, 刘玲, 黄浩云. 天津市各区县PM2.5污染工业行业贡献构成分析[J]. 中国环境科学, 2015, 35(1): 33-39.
CHEN Lu, ZHOU Yang, YAO Li-Ying, WANG Wei, JI Sheng, LIU Ling, HUANG Hao-Yun. Modeling studies of industrial sector contributions to PM2.5 pollution in different districts of Tianjin. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(1): 33-39.