摘要
目的了解汽车尾气排放的二氧化硫(SO_2)对大理市主城区空气质量的影响,为改善大理市空气污染情况提供依据。方法采用盐酸副玫瑰苯胺比色法测定主要交通要道和绿化地带空气中二氧化硫浓度,将测定结果与《环境空气质量标准》(GB3095-1996)进行比较分析。结果监测点空气中二氧化硫的含量均未超过0.03 mg/m^3,但是交通枢纽的空气中二氧化硫浓度总体高于对照绿化地带空气中的二氧化硫浓度。结论大理市主城区空气质量良好,但是需要加强保护。
Objective To investigate the effect of exhaust sulfur dioxide on the air quality of the urban areas of Dali city. Methods The concentrations of sulfur dioxide at the traffic hub and grcenbelts were detected with pararosaniline hydrochloride method and the test results were compared with the values formulated in Ambient Air Quality Standard （GB3095-1996）. Results The concentrations of sulfur dioxide in the air at the test sites were below 0.03 mg/m^3, but the concentration at the traffic terminals was higher than that at the greenbelts. Conclusion The air quality of Dali City is good, but environment protection is still necessary.
出处
《国外医学（医学地理分册）》
CAS
2011年第3期209-210,共2页
Foreign Medical Sciences：Section of Medgeography
基金
大理学院基金(No.2007X29)
