上海PM10 质量浓度的空间分布及影响因素分析

doi:10.3969/j.issn.1007-2861.2014.05.003

上海大学学报(自然科学版) ›› 2015, Vol. 21 ›› Issue (4): 481-489.doi: 10.3969/j.issn.1007-2861.2014.05.003

上海PM₁₀质量浓度的空间分布及影响因素分析

荆亮, 徐玢花, 杜艳, 仲勉, 冯加良

(上海大学环境与化学工程学院, 上海200444)

收稿日期:2014-04-27 出版日期:2015-08-31 发布日期:2015-08-31
通讯作者: 冯加良(1966—), 男, 研究员, 博士, 研究方向为大气颗粒物. E-mail:fengjialiang@shu.edu.cn
基金资助:
国家自然科学基金资助项目(41173097); 上海市教委科研创新基金资助项目(12YZ027)

Spatial distribution of PM10 in Shanghai and the influencing factors

JING Liang, XU Bin-hua, DU Yan, ZHONG Mian, FENG Jia-liang

(School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China)

Received:2014-04-27 Online:2015-08-31 Published:2015-08-31

摘要/Abstract

摘要： 根据上海2010 年1 月—2011 年12 月17 个环境监测点的PM10 监测数据和同期地面气象资料, 分析了上海PM₁₀ 质量浓度的季节变化和空间分布. 结果表明: 上海各监测点间PM₁₀ 平均质量浓度的差异并不显著, 说明区域传输对上海的大气污染有明显影响; 风向、风速对上海PM₁₀ 质量浓度有显著影响, 静风及WS 风向时PM₁₀ 质量浓度较高, 东风及东南风时PM₁₀质量浓度较低. 分析各监测点PM₁₀ 质量浓度与全市平均质量浓度的差别时发现,不同季节、不同风向下上海PM₁₀ 质量浓度的空间分布变化有较明显的规律, 污染物在不同功能区之间的相互输送是导致不同风向时PM₁₀ 质量浓度空间分布差异的重要原因. 气压对上海PM₁₀质量浓度的影响明显, 低气压时的PM₁₀ 质量浓度明显较低, 但大气压和PM₁₀ 质量浓度之间不存在线性关系.

关键词: PM10, 空间分布, 气象因素, 上海, 污染输送

Abstract: Daily PM₁₀ concentrations during January 2010 and December 2011 collected from 17 monitoring stations in Shanghai were analyzed together with the meteorological conditions to reveal seasonal and spatial distributions of PM₁₀. Generally speaking, homogeneous distribution of PM₁₀ concentrations between the monitoring sites was found in Shanghai, suggesting the influence of regional transport of pollutants on the air quality in Shanghai. Wind directions and speed had strong impact on the air quality in Shanghai, with higher PM₁₀ concentrations under calm and WS winds and lower concentrations under east and southeast winds. Through the analysis of the spatial distributions of the PM₁₀ concentration by plotting the deviation of PM₁₀ concentration at each site from the
averaged concentration of all sites, regular shifting of the spatial distribution of PM10 in Shanghai under different seasons and different wind directions was found. Transport of pollutants between different functional zones in Shanghai under different wind directions was responsible for the spatial variation of PM₁₀concentration in Shanghai. Obviously lower PM₁₀ concentrations were found under low barometric pressure, but no linear correlation could be found between pressure and PM₁₀ concentration.

Key words: meteorological condition, PM10, Shanghai, spatial distribution, transport of pollutants

中图分类号:

X 513

荆亮, 徐玢花, 杜艳, 仲勉, 冯加良. 上海PM₁₀质量浓度的空间分布及影响因素分析[J]. 上海大学学报(自然科学版), 2015, 21(4): 481-489.

JING Liang, XU Bin-hua, DU Yan, ZHONG Mian, FENG Jia-liang. Spatial distribution of PM10 in Shanghai and the influencing factors[J]. Journal of Shanghai University（Natural Science Edition）, 2015, 21(4): 481-489.

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上海PM₁₀质量浓度的空间分布及影响因素分析

Spatial distribution of PM10 in Shanghai and the influencing factors

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