某地块土壤污染状况调查中砷超标的原因分析  

Analysis of the cause of arsenic exceedance in soil pollution status survey of a certain plot

作　　者：彭叶棉 林国颖 潘丽敏 向婧婷 陈双梁 PENG Yemian;LIN Guoying;PAN Limin;XIANG Jingting;CHEN Shuangliang(Cuangdong Green Product Certification and Testing Center Co.,Ltd.,Guangzhou 510000,China;Guangdong Institute of Engineering Technology Co.,Ltd.,Guangzhou 510000,China)

机构地区：[1]广东省绿色产品认证检测中心有限公司,广州510000 [2]广东省工程技术研究所有限公司,广州510000

出　　处：《黑龙江环境通报》2024年第7期38-40,共3页Heilongjiang Environmental Journal

摘　　要：本文以珠三角某工业地块为研究对象,通过对地块土壤污染状况进行调查,评价该地块的土壤环境质量,并分析历史活动以及周边企业对地块内土壤环境质量的影响。调查结果表明,监测地块的部分土壤样品中重金属砷超过《土壤环境质量建设用地土壤污染风险管控标准(试行)》(GB36600-2018)规定的筛选值,超筛选值土壤样品均位于风化层。经过分析,地块土壤中砷含量高是受到地带性土壤地质背景特征影响造成,非人为因素影响。该地块不属于工业企业生产造成污染的地块,但可能威胁人体健康,在利用开发前应对项目地块开展详细调查和风险评估,进一步确定砷超筛选值区域范围,明确其对人体健康的影响。This paper investigates an industrial plot in the Pearl River Delta to evaluate its soil environmental quality and analyze the impact of historical activities and surrounding enterprises.The findings reveal that some soil samples from the monitored plot exceed the screening value for heavy metal arsenic as specified in the "Soil Environmental Quality Risk Management Standard for Construction Land Soil Pollution(Trial)"(GB36600-2018),and all these samples are located in the weathered layer.The high arsenic content in the soil is attributed to the geological characteristics of the soil's regional background,rather than human activities.The plot is not considered contaminated by industrial activities but may still pose a health risk.Therefore,detailed investigations and risk assessments are necessary before the site's development to identify the extent of arsenic exceedance and its potential impact on human health.

关 键 词：土壤污染状况 重金属砷 珠江三角洲背景值 风化层 原因分析 

分 类 号：X53[环境科学与工程—环境工程]