当前位置: 首页 > 文章 > 城市特殊性环境问题——南京市恶臭污染浓度分布的数值模拟研究 安徽农业科学 2010,38 (34) 19449-19453+19467
Position: Home > Articles > Urban Particular Environment Problem Journal of Anhui Agricultural Sciences 2010,38 (34) 19449-19453+19467

城市特殊性环境问题——南京市恶臭污染浓度分布的数值模拟研究

作  者:
董卓瑶;欧阳琰;安树青;张予燕
单  位:
南京市环境监测站;南京大学生命科学院;南京大学大气科学系
关键词:
数值模拟;恶臭污染;硫化氢
摘  要:
采用数值模拟手段对南京地区近年来关于恶臭污染较为集中的居民投诉问题进行了探索性研究。模拟得到了主要恶臭物种硫化氢的时空分布特征,并与实际监测结果进行了对比。结果表明,在南京地区,当主导风向为偏北或东北风且地面风速不太大时,排放源易对主城区空气质量产生影响。模拟日当日,排放源主要影响主城区中北部地区,南部地区受影响较小。各地区硫化氢浓度与排放源相对位置远近有关,其中化纤新村处日均浓度为6.94μg/m3,玄武湖处日均浓度为3.96μg/m3。玄武湖以北地区作为硫化氢浓度高值地区恰好对应着居民投诉高发地区。大气化学反应对硫化氢环境浓度具有一定的削减作用。
译  名:
Urban Particular Environment Problem
作  者:
DONG Zhuo-yao et al(College of Life Science,Nanjing University,Nanjing,Jiangsu 210093)
关键词:
Numerical simulation;Stink pollution;Hydrogen sulfide
摘  要:
The exploratory study was performed on resident complaint problem about relative concentration of stink pollution of Nanjing district in recent years through numerical simulation.The space-time distribution characteristics of major stink substance hydrogen sulfide were obtained through simulation and compared with practical monitoring result.The results showed that in Nanjing district,when the predominant wind direction was meta-north and northeast and the surface wind velocity was not too high,the air quality of main urban district was easy to be affected by emission source.In the simulation day,the emission source mainly affected middle and north part of main urban district and less affected its south part.The hydrogen sulfide concn.of various districts was related to the distance from emission source,and the daily mean concn.of Huaxianxin village and Xuanwuhu lake were 6.94 and 3.96 μg/m3.The north district to Xuanwuhu lake was the district with high hydrogen sulfide concn.and just corresponding to the district with frequent resident complaint.The atmospheric chemical reaction had some reducing effect on the environmental hydrogen sulfide concn.

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