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2006─2010年环保重点城市主要污染物浓度变化特征

孟晓艳 王瑞斌 张欣 李健军 李钢

孟晓艳, 王瑞斌, 张欣, 李健军, 李钢. 2006─2010年环保重点城市主要污染物浓度变化特征[J]. 环境科学研究, 2012, 25(6): 622-627.
引用本文: 孟晓艳, 王瑞斌, 张欣, 李健军, 李钢. 2006─2010年环保重点城市主要污染物浓度变化特征[J]. 环境科学研究, 2012, 25(6): 622-627.
MENG Xiao yan, WANG Rui bin, ZHANG Xin, LI Jian jun, LI Gang. Concentration Variations of Main Pollutants in Key Environmental Protection Cities in China during 2006 2010[J]. Research of Environmental Sciences, 2012, 25(6): 622-627.
Citation: MENG Xiao yan, WANG Rui bin, ZHANG Xin, LI Jian jun, LI Gang. Concentration Variations of Main Pollutants in Key Environmental Protection Cities in China during 2006 2010[J]. Research of Environmental Sciences, 2012, 25(6): 622-627.

2006─2010年环保重点城市主要污染物浓度变化特征

基金项目: 国家环境保护公益性行业科研专项(200809122)

Concentration Variations of Main Pollutants in Key Environmental Protection Cities in China during 2006 2010

  • 摘要: 利用2006─2010年全国环保重点城市的空气质量日报数据,分析了大气ρ(SO2)、ρ(NO2)和ρ(PM10)的变化特征. 结果表明:从年际变化看,ρ(SO2)和ρ(PM10)呈下降趋势,ρ(NO2)变化不显著.从季节变化看,ρ(SO2)、ρ(NO2)和ρ(PM10)均呈冬季高、夏季低的特征.从浓度谱分布看,全国大气中ρ(SO2)、ρ(NO2)和ρ(PM10)分别集中在0~0.150、0~0.100和0~0.250 mg/m3范围内,ρ(SO2)和ρ(PM10)谱峰区间逐渐向低浓度范围偏移,高浓度事件逐渐减少,表明SO2和PM10污染得到较明显的控制,而ρ(NO2)谱峰变化不大.从浓度变化看,山西ρ(SO2)、ρ(NO2)和ρ(PM10)下降最明显,年变化率分别为-11.2、-3.6和-14.2 μg/m3;青海ρ(SO2)、山东ρ(NO2)和ρ(PM10)的上升趋势最明显,年变化率分别为4.4、2.7和4.5 μg/m3.

     

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  • 刊出日期:  2012-06-25

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