CAJ | 학술논문

为了解研究区土壤重金属环境质量状况，对土壤进行样品采集和测试。采用单因子污染指数法和内梅罗（Nemerow）综合污染指数法，依据《土壤环境质量标准》（GB15618--2008）第二级标准对土壤中Ni和Cd的污染状况进行环境风险评价。结果表明， Ni的污染范围主要在距中心点3000 m范围内，超标点共15个，大部分超标点为轻微污染或轻度污染。个别点存在重度污染和综合污染现象。此外，对土壤重金属超标点位的玉米作物进行测试分析，发现其Ni和Cd含量均不超标，说明土壤的污染程度对于当地的玉米作物没有影响。
위료해연구구토양중금속배경질량상황，대토양진행양품채집화측시。채용단인자오염지수법화내매라（Nemerow）종합오염지수법，의거《토양배경질량표준》（GB15618--2008）제이급표준대토양중Ni화Cd적오염상황진행배경풍험평개。결과표명， Ni적오염범위주요재거중심점3000 m범위내，초표점공15개，대부분초표점위경미오염혹경도오염。개별점존재중도오염화종합오염현상。차외，대토양중금속초표점위적옥미작물진행측시분석，발현기Ni화Cd함량균불초표，설명토양적오염정도대우당지적옥미작물몰유영향。
The soil samples in the studied area were collected and tested , for estimating the environmental quality of heavy metal pollution in soil .According to the second level of agricultural soils standard in Soil Environ-mental Quality Standard (GB15618-2008), the environmental risk of Ni and Cd in soil was accessed by using sin-gle factor index and Nemerow index .The results show that the pollution of Ni is in the range of 3 000 m to the e-mission center .There are 15 points of heavy mental content in the soil beyond the standard , in which most of the excess areas are precaution domain or slightly polluted domain .There exist severe pollution and integrated pollution phenomenon in some areas .The authors analyzed the corn plants grown in the polluted areas .The contents of Ni and Cd in the corn plants do not exceed the related standard level , indicating the pollution of the soil in this area has no impact on corn plants .