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| 2006~2009年我国超大城市霾天气特征及影响因子分析 | |
| 引用本文： | 戴永立,陶俊,林泽健,谢绍东,曹军骥,张仁健.2006~2009年我国超大城市霾天气特征及影响因子分析[J].环境科学,2013,34(8):2925-2932. |
| 作者姓名： | 戴永立 陶俊 林泽健 谢绍东 曹军骥 张仁健 |
| 作者单位： | 1. 环境保护部环境工程评估中心,北京,100012 2. 环境保护部华南环境科学研究所,广州 510655;广东省水与大气污染防治重点实验室,广州 510655 3. 广东省水与大气污染防治重点实验室,广州,510655 4. 北京大学环境科学与工程学院,北京,100871 5. 中国科学院地球环境研究所,西安,710075 6. 中国科学院大气物理研究所,北京,100029 |
| 基金项目： | 环境保护公益性行业科研专项(201009001) |
| 摘 要： | 收集了2006～2009年北京、上海、广州和成都能见度等气象因子以及SO2、NO2和PM10等环境空气质量资料,在此基础上统计分析上述4个超大城市霾天气频率季节和年际变化特征及其主要的影响因子.结果表明,北京、上海、广州和成都霾天气频率季节最高值分别为夏季、冬季、春季和秋季.北京和广州霾天气频率呈现逐渐下降趋势,而上海和成都呈现逐渐上升趋势.PM10和相对湿度是影响能见度或霾天气频率关键因子.北京能见度变化对相对湿度比较敏感,而上海和广州对PM10浓度变化比较敏感,成都对相对湿度和PM10浓度敏感程度相当. |
| 关 键 词： | 超大城市 大气污染 能见度 可吸入颗粒物 相对湿度 |
| 收稿时间： | 2012/11/27 0:00:00 |
| 修稿时间： | 2013/1/25 0:00:00 |
Characteristics of Haze and Its Impact Factors in Four Megacities in China During 2006-2009 |
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| DAI Yong-li,TAO Jun,LIN Ze-jian,XIE Shao-dong,CAO Jun-ji and ZHANG Ren-jian.Characteristics of Haze and Its Impact Factors in Four Megacities in China During 2006-2009[J].Chinese Journal of Environmental Science,2013,34(8):2925-2932. | |
| Authors: | DAI Yong-li TAO Jun LIN Ze-jian XIE Shao-dong CAO Jun-ji and ZHANG Ren-jian |
| Affiliation: | Appraisal Center for Environment & Engineering, Ministry of Environmental Protection, Beijing 100012, China;South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;The Key Laboratory of Water and Air Pollution Control of Guangdong Province, Guangzhou 510655, China;South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China;College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China;Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China;Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China |
| Abstract: | The meteorological and environmental data including visibility, SO2, NO2 and PM10 were collected in four major megacities (Beijing, Shanghai, Guangzhou and Chengdu) in the years 2006-2009. Based on the data, seasonal and annual variations of the haze frequency and the key impact factors were discussed. The results indicated that the highest frequencies of haze occurred in summer, winter, spring and autumn for Beijing, Shanghai, Guangzhou and Chengdu, respectively. The trends of haze frequency decreased in Beijing and Guangzhou, while increased in Shanghai and Chengdu during the studied period. The PM10 concentration and relative humidity were the key factors for visibility degradation in the four megacities. The variation of visibility was sensitive to relative humidity in Beijing, to PM10 in Shanghai and Guangzhou, and to both in Chengdu. |
| Keywords: | megacity air pollution visibility PM10 relative humidity |
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