摘要
报道了2003年12月在主城区、近郊区和远郊区3个点采集的雾水的离子组分分析结果,并与10a前的雾水离子组分进行了比较。结果表明:雾水pH值是远郊区>近郊区>自主城区;雾水的酸化类型以硫酸型为主,其次是盐酸型和硝酸型。雾水的碱化类型在主城区和远郊区以钙—铵型为主;在近郊区以钙型为主;雾水离子浓度是主城区>近郊区>远郊区;与10a前相比,雾水中离子组分浓度呈下降趋势,说明重庆市的大气质量有了一定的改善。
This paper reported the analysed results of ions species in fog water collected at three sites in Chongqing during December of 2003,also compared with the results obtained ten years ago.The results showed that pH value is increasing with the distance away from the down-areas.The acid type of most fog water is vitriol.The basification type of most fog water is calcium-ammonium in suburb and calcium in down-areas.The average concentration of ions in fog water is down-areas>suburb>far-suburb.Compared with the results obtained ten years ago,the concentration of ions in fog wate decreased,this indicating the improvement of air quality in Chongqing.
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2005年第3期393-396,共4页
Journal of Southwest Agricultural University
基金
重庆市科委资助项目
关键词
雾水
污染
化学
fog water
pollution
chemical species
