| 成都市大气污染与气象条件关系分析 |
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| 引用本文： | 赵福燕,陈朝平,王凌,王敏,王杰.成都市大气污染与气象条件关系分析[J].高原山地气象研究,2020,40(3):85-89. |
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| 作者姓名： | 赵福燕 陈朝平 王凌 王敏 王杰 |
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| 作者单位： | 四川省气象探测数据中心,成都 610072;高原与盆地暴雨旱涝灾害四川省重点实验室,成都 610072;四川省气象台,成都 610072;高原与盆地暴雨旱涝灾害四川省重点实验室,成都 610072 |
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| 基金项目： | 四川省气象探测数据中心科学技术研究开发课题(川气探数课题2020-4) |
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| 摘 要： | 利用成都市城区2015年12月~2019年12月污染物浓度及气象资料,对PM10、PM2.5、CO、O3、 SO2、NO2六种大气污染物浓度变化特征以及与气象要素之间的相关性进行分析。结果表明:2016~2019年成都市空气质量冬季最差,秋季最好,年内整体以良为主,重度污染和严重污染的天气较少出现,空气质量逐年变好;主要污染物浓度除O3外在冬季最高,夏季最低,春秋两季相差不大,O3浓度变化则相反;主要污染物的日变化特征也较为明显。空气质量综合指数、PM10、PM2.5、CO、NO2浓度与气温和降水存在显著负相关性,与气压存在显著正相关性,还与相对湿度呈不同程度的负相关,但与风速相关性不显著;O3浓度不仅与风速、气温和降水存在显著的正相关,还与气压呈显著的负相关,却与相对湿度的负相关性不显著。
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| 关 键 词： | 成都市 大气污染 气象条件 相关分析 |
| 收稿时间： | 2020-06-09 |
Analysis of the Relationship between Air Pollution and Meteorological Conditions in Chengdu |
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| Affiliation: | 1. Sichuan provincialMeteorological Observation and Data Centre, Chengdu 610072, China;2. Sichuan Meteorological Observatory, Chengdu 610072, China;3. Heavy Rain and Drought-Flood Disaster in Plateau and Basin Key Laboratory of Sichuan Province, Chengdu 610072, China |
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| Abstract: | Based on the pollutant concentration and meteorological data of Chengdu City from December 2015 to December 2019,the variation characteristics of PM10,PM2.5,CO,O3,SO2,NO2 and their correlation with meteorological elements were analyzed. The results show that: From 2016 to 2019,the air quality in Chengdu is the worst in winter and the best in autumn,and the overall air quality is good in the whole year,with less severe pollution and serious pollution weather,and the air quality is getting better year by year; Except for O3,the concentration of main pollutants is the highest in winter and the lowest in summer,the difference is not significant between spring and autumn,but the variation of O3 concentration is opposite; The diurnal variation characteristics of main pollutants are also obvious. The air quality index,PM10,PM2.5,CO,NO2 concentration have significant negative correlation with temperature and precipitation,significant positive correlation with air pressure,and negative correlation with relative humidity in varying degrees,but no significant correlation with wind speed;O3 concentration not only has significant positive correlation with wind speed,temperature and precipitation,but also has significant negative correlation with atmospheric pressure,but has no significant correlation with relative humidity. |
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