| 宣城市空气污染特征与气象要素的关系分析 |
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| 引用本文： | 王,俊,夏,伟,史金保等.宣城市空气污染特征与气象要素的关系分析[J].安徽农业科学,2014(10):3042-3044. |
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| 作者姓名： | 王 俊 夏 伟 史金保等 |
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| 作者单位： | 安徽省郎溪县气象局,安徽郎溪242100 |
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| 摘 要： | 依据2006～2013年宣城市空气污染指数(air pollution index,API)日数据和相应时段的常规地面气象数据,利用SPSS对城市空气质量与气象要素进行相关统计分析。结果表明,宣城市空气质量以Ⅰ级和Ⅱ级天气为主,其中Ⅱ级天数占统计样本的77.9%,而Ⅲ级以上天数共有170 d,占统计样本的5.8%,整体空气质量较好;首要污染物为PM10,2012年以来有逐年严重的趋势。API周末效应指数分布区间主要集中在-20～20,变化趋势符合夏季低、冬季高的规律;气温、湿度、风速和能见度等气象要素与API指数关系密切,各季节相关性存在差异。
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| 关 键 词： | 空气污染指数(API) 周末效应 气象要素 相关分析 |
Assessment on Air Quality Characteristics in Xuancheng and Its Relation with Meteorological Conditions |
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| Institution: | WANG Jun et al (Langxi Meteorological Bureau, Langxi, Anhui 242100) |
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| Abstract: | Based on the monitoring both of API（ air pollution index） and ground meteorological data in Xuancheng during 2006 -2013 were ana- lyzed, and the relationships between the API and ground meteorological factors were statistical analyzed by SPSS. The results indicated the overall air quality is better in Xuancheng. The grade ofIand H air quality primarj＇ly occurred. Grade II was partly accounted for 77.9%, grade I!I and o- ~,ersteps were 170 days in all that was accounted for 5.8%. The primary pollution was PM10 and worse than before from 2012. Weekend effect index of API mainly concentrated - 20 - 20, its variation trend is low in summer and high in winter. There was a strong negative correlation be- tween temperature, humidity, wind velocity, visibility and API, but their relationshios had diversities in different season_ |
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| Keywords: | Air pollution index Weekend effect Meteorological factors Correlation analysis |
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