摘要
根据2015—2017年苏州市南门站O_(3)污染物和相关气象要素数据,分析了太阳辐射、相对湿度、风速风向、气温等气象要素对苏州市O_(3)污染的影响。结果表明:在太阳总辐射量在300 W/m^(2)以下时,O_(3)浓度随太阳总辐射量上升较快,在此后则上升速度趋缓。O_(3)污染天湿度主要分布在30%~60%,而O_(3)优良天的湿度主要在50%以上。风速较小时O_(3)浓度较低,风速较大时O_(3)浓度相对较高。O_(3)中度污染时,受东北偏东方向的O_(3)及其前体物传输影响较大。在日最高气温高于15℃时,可能出现O_(3)轻度污染;最高气温高于25℃时可能出现O_(3)中度污染。
According to the data of ozone pollutants and related meteorological elements of Nanmen Station in Suzhou from^(2)015 to 2017,the influences of meteorological elements,such as solar radiation,relative humidity,wind speed and wind direction,temperature,on the levels of O_(3) pollution in Suzhou were analyzed.The results show that,the concentration of O_(3) increases rapidly with the total solar radiation while total solar radiation is below 300 W/m^(2).The relative humidity of O_(3) polluted days is mainly distributed in 30%~60%,while that of unpolluted days is more than 50%.The concentration of O_(3) is low in the condition of low wind speed,and relatively high in the condition of high wind speed.When O_(3) reaches the level of moderately pollution,the affect of O_(3) and its precursor transport in the East northeast direction is significant.Slightly pollution may occur while the daily maximum temperature is higher than 15℃;and moderate pollution may occur while the maximum temperature is higher than 25℃.
作者
吴也正
吴旻妍
魏恒
熊宇
缪青
WU Ye-zheng;WU Min-yan;WEI Heng;XIONG Yu;MIAO Qing(Jiangsu-Suzhou environmental monitoring center,Suzhou Jiangsu 215004,China;Suzhou Institute of Environmental Science,Suzhou Jiangsu 215004,China)
出处
《干旱环境监测》
2021年第1期1-5,共5页
Arid Environmental Monitoring
基金
苏州市环保科技项目(A201903)。
