| 贵阳市大气污染物浓度特征及降水的清除作用 |
| |
| 引用本文： | 吴战平,王烁,宋丹,白慧,李慧璇.贵阳市大气污染物浓度特征及降水的清除作用[J].高原山地气象研究,2019,39(1):41-47. |
| |
| 作者姓名： | 吴战平 王烁 宋丹 白慧 李慧璇 |
| |
| 作者单位： | 1. 贵州省山地环境气候研究所, 贵阳 550002; |
| |
| 基金项目： | 中国气象局气候变化专项——西南区域气候变化评估报告(CCSF201823),贵州省科技支撑计划项目——贵州空气质量及空气污染气象条件预报技术研究(黔科合支撑[2018]2779) |
| |
| 摘 要： | 本文利用2013年1月1日~2015年6月30日贵阳市9个环境监测站的6种主要大气污染物(SO2、NO2、O3、PM10、CO、PM2.5)监测数据,分析了贵阳市主要大气污染物的年变化、日变化特征及降水对首要污染物浓度变化的影响。发现SO2、NO2、PM10、CO、PM2.5浓度为单谷型年变化,夏季浓度最低,冬季浓度最高;O3浓度为双峰型年变化,4、10月分别有两个极大值、11~2月与7月分别为两个极小值;SO2、NO2、PM10、CO、PM2.5浓度日变化呈双峰型特征;O3浓度日变化为单峰型特征;郊区SO2、NO2、PM10、CO、PM2.5日平均浓度低于市区,而郊区O3日平均浓度高于市区。降水对O3的湿清除效果不好,对其余大气污染物的湿清除效果较好,尤其夜间降水对颗粒污染物(PM2.5、PM10)的清除效果优于白天降水,但会使O3浓度明显上升。
|
| 关 键 词： | 贵阳 大气污染 浓度特征 湿清除 |
| 收稿时间： | 2019-02-01 |
Characteristics of Atmospheric Pollutants Concentration and Clearance of Precipitation in Guiyang City |
| |
| Affiliation: | 1. Guizhou Institute of Mountainous Environment and Climate, Guiyang 550002, China;2. Guizhou Climate Center, Guiyang 550002, China;3. Guizhou Provincial Meteorological Service Center, Guiyang 550002, China;4. Guizhou Ecological Meteorology & Satellite Remote Sensing Center, Guiyang 550002, China |
| |
| Abstract: | Based on the monitoring data of six major air pollutants (SO2,NO2,O3,PM10,CO,PM2.5) from 9 environmental monitoring stations in Guiyang City from January 1,2013 to June 30,2015,the annual variation,diurnal variation characteristics of major air pollutants and the influence of precipitation on the concentration variation of primary air pollutants in Guiyang City were analyzed.It was found that the concentration of SO2,NO2,PM10,CO and PM2.5 varied annually in a single valley type,with the lowest concentration in summer and the highest concentration in winter,but the annual variation of O3 concentration is bimodal,with two maximum values in April and October and two minimum values in November-February and July,respectively.Again the diurnal variations of SO2,NO2,PM10,CO and PM2.5 were bimodal,while the variation of O3 were unimodal.Moreover,the average concentrations of SO2,NO2,PM10,CO and PM2.5 in suburban areas were lower than those in urban areas,which of O3 in suburban areas were higher than those in urban areas.The wet removal effect of precipitation on O3 is bad,but on other atmospheric pollutants is better.Especially,the removal effect of precipitation at night on particulate pollutants (PM2.5,PM10) is better than that of precipitation at daytime,yet the effect of precipitation at night on O3 is negative. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《高原山地气象研究》浏览原始摘要信息 |
|
点击此处可从《高原山地气象研究》下载全文 |
|
