奎屯市大气降尘污染的时空分布特征
Pilot Study on Dustfall Pollution Characteristics of Temporal-spatial Distribution in Kuitun City
-
摘要:
目的 对奎屯市降尘分布特征进行初步研究,以期为环保部门提供依据。 方法 将奎屯市分为工业、商业、居民、生态4个功能区,并进行为时一年的大气降尘实时监测,在此基础上分析该市降尘污染的时空分布特征。 结果 各功能区降尘量最高的月份出现在4~7月份,年降尘累积总量表现为工业区 > 商业区 > 居民区>生态区,每月35.44~118.21 t/km2,方差分析显示,工业区、商业区、居民区与生态区之间差异有统计学意义。 结论 奎屯市城市大气降尘污染虽有下降趋势,但仍需加强大气污染控制的综合防治措施。 Abstract:Objective To study urba(Kuitun City)dust fall pollution characteristics and its time-spatial distribution for the use of environmental protection section. Methods Based on the actual situation in Kuitun, the amount and time-spatial distribution of dust fall in four functional areas were monitored. Results The amount of dust fall in each functional area reached highest in April through July. Total amount of dust accumulated was 35.44~118.21 t/(km2& #183;month)in the order that industrial area > business area > residential area > ecological zone. By analysis of variance, the amount of dust fall had very significant differences between the four zones. Conclusion The amount of atmospheric dust fall pollution has a decline tendency in Kuitun City, but it still results in healthy hazards of residents. So it is very necessary to strengthen comprehensive prevention measures in atmospheric pollution control.
下载:
