| 沈阳及周边城市大气细粒子的分布特征及其对空气质量的影响 |
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| 引用本文： | 马雁军,刘宁微,王扬锋,洪也,张云海,刘庆鹜.沈阳及周边城市大气细粒子的分布特征及其对空气质量的影响[J].环境科学学报,2011,31(6):1168-1174. |
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| 作者姓名： | 马雁军 刘宁微 王扬锋 洪也 张云海 刘庆鹜 |
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| 作者单位： | 中国气象局沈阳大气环境研究所,沈阳,110016 |
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| 基金项目： | 2008公益性行业(气象)科研专项(No.GYHY20080620);国家自然科学基金(No.40575067) |
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| 摘 要： | 利用沈阳、鞍山、抚顺和本溪4城市2007-2009年大气细粒子PM2.5及大气污染物PM10SO2、NO2的观测资料,分析了4城市大气细粒子的分布特征及其与空气质量的关系.结果表明:4城市大气细粒子PM2.5污染很重,年均浓度平均值超过美国大气细粒子PM2.5年均浓度标准4倍左右;4城市PM10、SO2的年均浓度呈下降...
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| 关 键 词： | 沈阳 大气细粒子 SO2 NO2 分布特征 空气污染指数(API) 相关关系 |
| 收稿时间： | 2010/8/10 0:00:00 |
| 修稿时间： | 2010/12/10 0:00:00 |
Thedistribution characteristics of fine particles and their impact on air quality in Shenyang and surrounding areas |
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| MA Yanjun,LIU Ningwei,WANG Yangfeng,HONG Ye,ZHANG Yunhai and LIU Qingwu.Thedistribution characteristics of fine particles and their impact on air quality in Shenyang and surrounding areas[J].Acta Scientiae Circumstantiae,2011,31(6):1168-1174. |
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| Authors: | MA Yanjun LIU Ningwei WANG Yangfeng HONG Ye ZHANG Yunhai and LIU Qingwu |
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| Institution: | Institute of Shenyang Atmospheric Environment, China Meteorological Administration,Shenyang 110016,Institute of Shenyang Atmospheric Environment, China Meteorological Administration,Shenyang 110016,Institute of Shenyang Atmospheric Environment, China Meteorological Administration,Shenyang 110016,Institute of Shenyang Atmospheric Environment, China Meteorological Administration,Shenyang 110016,Institute of Shenyang Atmospheric Environment, China Meteorological Administration,Shenyang 110016 and Institute of Shenyang Atmospheric Environment, China Meteorological Administration,Shenyang 110016 |
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| Abstract: | According to data of fine airborne particles PM2.5, PM10, SO2 and NO2 from 2007 to 2009 in Shenyang, Anshan, Fushun and Benxi, the distribution of the fine particles and their impact on air quality were analyzed. The results indicated that fine particle pollution in these cities is so serious that the yearly mean concentration has exceeded US yearly standard by about 4 times. In the 4 cities, the yearly mean concentrations of PM10 and SO2 decreased over the study period, but yearly mean concentration of NO2 increased. Moreover, the concentrations of PM2.5, PM10, SO2 and NO2 vary obviously with seasons. In winter, the concentrations are the highest and the mean ratio of PM2.5 and PM10 are from 65% to 68%. However, the ratio in summer or in winter is the highest and the ratio in spring is the smallest. The correlation between fine airborne particles and air pollution index (API) presents as a quadratic multinomial or cubic multinomial in any season in the 4 cities. The correlation of fine particles and API has an obvious correlation in different seasons, though the correlation of fine particles and API in spring is the worst. The correlation coefficient of atmospheric fine particles and API has obvious correlation with different grades of air quality in the 4 cities. The correlation between fine airborne particles and API is the best when air quality is fine. |
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| Keywords: | Shenyang air fine particles SO2 NO2 air pollution index (API) correlation |
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