某市工业区和市区环境空气颗粒物中重金属污染特征

Characteristics of Heavy Metal Pollution in Air Particulate Matter in Industrial and Urban Areas of a Certain City

对某市工业区和市区2023年的大气环境进行监测,分析了其环境空气颗粒物的浓度分布以及环境空气颗粒物中重金属的污染特征,并采用富集因子法对重金属的来源进行了探讨。结果表明,某市环境空气颗粒物浓度呈现出季节性的变化规律,春冬季节颗粒物污染高于夏秋季,且工业区环境空气颗粒物浓度高于市区;环境空气颗粒物中重金属浓度呈现一定的时空分布,工业区的重金属浓度分布普遍高于市区,砷的污染较为突出,而重金属元素镉、铅和砷出现了严重的富集,表明人为造成的重金属污染极其严重。因此,需在实际生产生活过程中减少人为因素导致的重金属的排放。

This article monitors the atmospheric environment of an industrial zone and urban area in a certain city in 2023,analyzes the concentration distribution of ambient air particulate matter and the pollution characteristics of heavy metals in ambient air particulate matter,and uses the enrichment factor method to explore the sources of heavy metals.The results show that the concentration of ambient air particulate matter in a certain city shows a seasonal variation pattern,with particulate matter pollution in spring and winter being higher than in summer and autumn,And the concentration of particulate matter in the air of industrial areas is higher than that in urban areas.The concentration of heavy metals in the ambient air particulate matter shows a certain spatiotemporal distribution.The concentration of heavy metals in industrial areas is generally higher than that in urban areas,and arsenic pollution is more prominent.The heavy metal elements cadmium,lead,and arsenic have shown serious enrichment,indicating that human caused heavy metal pollution is extremely serious.Therefore,it is necessary to reduce the emission of heavy metals caused by human factors in actual production and life processes.