内蒙古四子王旗2008及2009年沙尘天气研究

通过对四子王旗2008年和2009年3-5月份大气TSP浓度的测定,结合同期主要气象因子数据,依据国家规定的大气中TSP含量的标准和国家环境空气质量标准,对四子王旗的沙尘天气进行分类,并对其强度等级进行划分。评价结果表明：在2008年3-5月份中,发生了5次浮尘天气,2次扬沙天气,其中在2008年5月26日TSP浓度值为3.058mg/m3,达到扬沙天气等级。在2009年3-5月份,发生1次扬沙天气,TSP浓度值为3.369 mg/m3;四子王旗大气中TSP浓度含量符合国家环境空气质量二级标准;大气中TSP浓度与风速、环境温度呈正相关,与降雨量、大气压呈负相关。

The Research for SiZiWang County Inner Mongolia in 2008 and 2009 on Sand-dust Weather

This article primarily for the TSP consistence in atmospheres of the SiZiWang County in 2008 and 2009 March,April and May.combined with meteorological factors over the same period,according to state regulations TSP concentration in the atmosphere of standards and national air quality standards,on the classification of dust weather Siziwang county,and divide their strength grade.Evaluation showed that： in 2008,3-5 months,the floating dust weather occurred five times,two times blowing weather,which in May 26,2008 to 3.058 mg/m3,to blowing sand weather rating.3-5 months in 2009,there were 1 blowing weather,TSP concentration value of 3.369 mg/m3;Siziwang County atmospheric TSP concentrations meet the national ambient air quality standards;atmospheric TSP concentration and wind speed,temperature was positively correlated with precipitation,atmospheric pressure was negatively correlated.