| 杭州市区空气污染物变化特征及其与气象条件的关系 |
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| 引用本文： | 洪盛茂,焦荔,何曦,孙鸿良,徐鸿,杨乐,何纪平,叶贤满,张天,姚晗. 杭州市区空气污染物变化特征及其与气象条件的关系[J]. 气象, 2010, 36(2): 93-101 |
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| 作者姓名： | 洪盛茂 焦荔 何曦 孙鸿良 徐鸿 杨乐 何纪平 叶贤满 张天 姚晗 |
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| 作者单位： | 浙江省杭州市环境监测中心站,杭州,310007 |
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| 基金项目： | 杭州市科技局重大科技创新项目(20092113A05)资助 |
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| 摘 要： | 利用2002—2007年杭州市区空气污染物监测资料,根据杭州周边城市的每日环境空气质量,结合不同污染类型和气象资料,分析市区空气污染物变化特征及与气象条件的关系。结果表明,市区环境空气质量中污染天数出现频率逐年减少,空气质量正在好转,主要是首要污染物PM_(10)的浓度呈现逐年降低的趋势。在三种污染类型中大范围连续污染类型中的较重污染出现天数比其他两种污染类型多一半,大范围连续污染类型时PM_(10)浓度是最高的,个别污染类型时最低,PM_(10)浓度分别为0.256 mg·m~(-3)和0.177 mg·m~(-3)。不同类型与不同天气形势的关系比较密切。杭州市区污染出现频率存在明显的季节变化,冬季最高,夏季最低,污染频率分别为25.6%和3.6%。不同污染类型中个别污染类型出现最多,局地连续污染类型出现最少,出现频率分别为40.7%和29.9%。不同季节不同污染类型的出现频率相差较大,局地连续污染冬季出现频率较高,个别污染在春季出现较多,大范围连续污染在秋季出现较多。夏季的空气质量最好,只有少数的个别污染出现。在不同级别污染中,Ⅲ1级(轻微污染)主要是个别污染类型,Ⅲ2级(轻度污染)和Ⅳ1级(中度污染)污染主要是大范围连续污染类型,而Ⅳ2级(中度重污染)和Ⅴ级(重度污染)污染出现时主要是受到沙尘暴影响或春节烟花爆竹燃放影响的个别污染类型。
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| 关 键 词： | 污染类型 天气条件 沙尘暴 烟花爆竹 |
| 收稿时间： | 2009-02-24 |
| 修稿时间： | 2009-08-08 |
Variation of Air Pollutants and Their Relation with Meteorological Conditions in Hangzhou |
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| HONG Shengmao , JIAO Li , HE Xi , SUN Hongliang , XU Hong , YANG Le , HE Jiping , YE Xianman , ZANG Tian , YAO Han. Variation of Air Pollutants and Their Relation with Meteorological Conditions in Hangzhou[J]. Meteorological Monthly, 2010, 36(2): 93-101 |
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| Authors: | HONG Shengmao JIAO Li HE Xi SUN Hongliang XU Hong YANG Le HE Jiping YE Xianman ZANG Tian YAO Han |
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| Affiliation: | Hangzhou Environmental Monitoring Center Station, Hangzhou 310007;Hangzhou Environmental Monitoring Center Station, Hangzhou 310007;Hangzhou Environmental Monitoring Center Station, Hangzhou 310007;Hangzhou Environmental Monitoring Center Station, Hangzhou 310007;Hangzhou Environmental Monitoring Center Station, Hangzhou 310007;Hangzhou Environmental Monitoring Center Station, Hangzhou 310007;Hangzhou Environmental Monitoring Center Station, Hangzhou 310007;Hangzhou Environmental Monitoring Center Station, Hangzhou 310007;Hangzhou Environmental Monitoring Center Station, Hangzhou 310007;Hangzhou Environmental Monitoring Center Station, Hangzhou 310007 |
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| Abstract: | Based on the monitoring data of air pollutants from 2002 to 2007 over Hangzhou,according to ambient air quality every day in surrounding cities of Hangzhou,combined with different types of pollution and meteorological data,the characteristics of air pollutants and its relationship with weather conditions are analyzed.The results show that the frequency of pollution days in air quality is decreased year by year, and the air quality has been improved step by step,because the concentrations of PM_(10) that is ... |
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| Keywords: | pollution type weather duststorm firework |
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