摘要
文章以豫北地区某化工厂遗存铬渣为研究对象。依据GB 15618-1995《土壤环境质量标准》确定其污染程度和污染范围,利用Hakanson潜在生态危害指数法评价该污染场的生态风险。结果表明:所布设的49个采样点中有36个超标,超标率为73.5%;样品中总铬最大含量为34139 mg/kg,超标130.6倍;污染区域在距污染核心区约100 m范围内,污染面积约35000 m2;污染程度随离开污染核心区的距离增大而逐渐减小;在污染区域内,生态风险为"中等及以上生态危害"等级。
The research object of this paper is the remains of chromium slag in a chemical plant in the north area of Henan Province. Determine the degree of pollution and contamination range according to GB 15618-1995 soil environmental quality standards. Ecological Risk Assessment of the contaminated sites by Hakanson potential ecological risk index. The results showed that 36 overweight in 49 sampling points, exceeded the rate of 73.6 %.The maximum total chromium content of 34139 mg/kg, exceeding 130.6 times. Contaminated area within about 100 m away from the core area of contamination, contaminated soil area is about 35000 square meters. The farther left the core area of contamination lower pollution levels. In the polluted area, the ecological risk is medium or higher.
出处
《广东化工》
CAS
2015年第24期136-138,共3页
Guangdong Chemical Industry
基金
国家自然科学基金联合基金(U1404217)
安阳工学院青年科研基金项目(2013~2015)
关键词
铬渣
耕地
铬污染
生态风险评估
chromium slag
farmland
chromium contamination
ecological risk
