北京市海淀区大气颗粒物污染水平及其影响因素

资源与产业 ›› 2009, Vol. 11 ›› Issue (1): 96-100.

北京市海淀区大气颗粒物污染水平及其影响因素

孙俊玲，刘大锰，扬雪

（中国地质大学能源学院，北京 100083）

收稿日期:2008-11-10 修回日期:2008-12-26 出版日期:2009-03-19 发布日期:2009-02-20
作者简介:孙俊玲 (1972— )，女，工程师、博士生，主要从事大气环境中持久性有机污染物的研究。E-mail: jlsun990406@sina.com
基金资助:
国家自然科学基金（40475049）；北京市自然科学基金（8032012）。

ATMOSPHERIC PARTICLE POLLUTION AND ITS FACTORS IN BEIJING

SUN Jun-ling, LIU Da-meng, YANG Xue

(School of Energy Resources, China University of Geosciences, Beijing 100083, China)

Received:2008-11-10 Revised:2008-12-26 Online:2009-03-19 Published:2009-02-20

摘要/Abstract

摘要：

于2008年3月5日—14日在北京市海淀区同时采集了大气PM_2.5、PM₁₀样品，并对其污染水平、日变化趋势、PM_2.5/PM₁₀比值及其影响因素进行了分析。结果表明，PM₁₀日均值为220.0 μg/m³,超过国家二级标准(150 μg/m³)的46.7%。PM_2.5日均值为132.5 μg/m³,超过美国标准（65 μg/m³）的103.8%。说明该地区颗粒物污染非常严重。对人体危害更大的PM_2.5是PM₁₀的主要组成部分,平均占63.6%。PM_2.5和PM₁₀浓度与相对湿度、风速呈现出很好的相关性，随相对湿度的增加和风速的减小颗粒物浓度明显增加。温度与颗粒物浓度呈正相关性。气象条件是颗粒物浓度的主要影响因素。本文的研究成果力求为北京市大气颗粒物污染防治和控制政策的制定提供科学依据。

关键词: PM_2.5；PM₁₀；污染水平；影响因素；北京

Abstract:

Air PM_2.5and PM₁₀ samples that were concurrently collected during March 5-14, 2008 were analyzed in their pollution level, daily changing trend, the ratios of PM_2.5/PM₁₀, and influent factors with results indicating that the daily average concentration of PM₁₀ was 220.0 μg/m³, 46.7% more than the second national standard (150 μg/m³), and that the daily average concentration of PM_2.5 was 132.5 μg/m³, 103.8% more than the US’s standard. This reveals a severe atmospheric particle pollution in this area. PM_2.5 which is more harmful to human is a major component of PM₁₀, about 63.6% on average. PM_2.5 and PM₁₀ concentration has a good correlation with humidity and wind velocity, increasing with the increasing of humidity and the temperature, and decreasing with the increasing of wind velocity. The meteorological conditions plays a key role in atmospheric particle pollution. This paper presents a reference to prevent air particulate pollution and to make policies.

Key words:

PM_2.5; PM₁₀; atmospheric particle pollution; influence factors; Beijing

中图分类号:

X823

孙俊玲刘大锰扬雪. 北京市海淀区大气颗粒物污染水平及其影响因素[J]. 资源与产业, 2009, 11(1): 96-100.

SUN Jun-ling LIU Da-meng YANG Xue. ATMOSPHERIC PARTICLE POLLUTION AND ITS FACTORS IN BEIJING[J]. Resources & Industries, 2009, 11(1): 96-100.

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