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上海地区大气相对湿度与PM10浓度和大气能见度的相关性分析

龚识懿 冯加良

龚识懿, 冯加良. 上海地区大气相对湿度与PM10浓度和大气能见度的相关性分析[J]. 环境科学研究, 2012, 25(6): 628-632.
引用本文: 龚识懿, 冯加良. 上海地区大气相对湿度与PM10浓度和大气能见度的相关性分析[J]. 环境科学研究, 2012, 25(6): 628-632.
GONG Shi yi, FENG Jia liang. Relationships among Relative Humidity, PM10 Concentration and Atmospheric Visibility in Shanghai[J]. Research of Environmental Sciences, 2012, 25(6): 628-632.
Citation: GONG Shi yi, FENG Jia liang. Relationships among Relative Humidity, PM10 Concentration and Atmospheric Visibility in Shanghai[J]. Research of Environmental Sciences, 2012, 25(6): 628-632.

上海地区大气相对湿度与PM10浓度和大气能见度的相关性分析

基金项目: 国家自然科学基金项目(20877052)

Relationships among Relative Humidity, PM10 Concentration and Atmospheric Visibility in Shanghai

  • 摘要: 以大气RH(相对湿度)为基准对上海2005─2009年大气质量和气象资料的日均观测资料进行了分类统计,分析了RH与ρ(PM10)、大气能见度的相关关系. 结果表明:在将RH以5%的间隔进行分段后,各区段ρ(PM10)平均值与RH平均值呈显著线性负相关,R(相关系数)达0.97;随着RH增大,大气能见度随ρ(PM10)变化率的绝对值增大;RH在75%以上时,增加相同的ρ(PM10)所导致的大气能见度下降量是RH在40%~45%时的5倍以上;RH小于75%时,大气能见度可较好地反映ρ(PM10)的变化,而RH大于75%时,大气能见度的降低主要反映PM10含水量的快速增加而并不指示ρ(PM10)的增加.

     

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  • 刊出日期:  2012-06-25

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