摘要
利用2001～2004年天津市有代表性站点的气象观测资料及市区主要污染物排放资料和温风探空资料来分析天津地区灰霾特征,得出天津地区灰霾总体状况.天津市灰霾受地理环境影响较大,年灰霾日数呈现市区>山区>海滨;灰霾日数年分布市区峰值出现在8月,蓟县(山区)和塘沽(海滨)分别出现在7月和10月,三站谷值都出现在春季,市区出现在4月,蓟县(山区)和塘沽(海滨)集中在3月;天津市灰霾日污染普遍重于非灰霾日,灰霾日污染物监测浓度高于或接近污染物监测浓度月均值;灰霾日边界层明显特征是存在较强近地逆温层.
Based on the results of Tianjin meteorological observations from 2001 to 2004,the primary pollutant concentration and the boundry layer data,the characteristics of haze in Tianjin are analyzed.The results show that humidity has higher influence on haze in Tianjin.Annual days of haze show that urban area > Jixian(mountain area) > Tanggu(seashore).The peaks of haze in urban area,Jixian and Tanggu occur in August,July and October,respectively.The haze valley of the three sites appears in spring,the haze valley of urban area appears in April and the haze valley of Jixian and Tanggu appears both in March.The pollution of haze days is more serious than other days.The pollutant concentration in haze days is higher or close to mean monthly pollutant concentration.Temperature inversion layer is significant in haze days.
出处
《过程工程学报》
CAS
CSCD
北大核心
2006年第z2期127-132,共6页
The Chinese Journal of Process Engineering
关键词
灰霾
城市边界层
逆温层
天津
haze
urban boundary layer
temperature inversion layer
Tianjin
