山东某典型石化企业土壤污染特征及健康风险评估
Characterization of Soil Pollution and Health Risk Assessment in a Typical Petrochemical Enterprise in Shandong Province
李桂全 1沈兰霞 2沈敬3
作者信息
- 1. 山东瑞地环评科技有限公司, 山东青岛 266000
- 2. 东营市东营区人民医院, 山东东营 257099
- 3. 青岛市妇女儿童医院, 山东青岛 266034
- 折叠
摘要
为探究石化企业生产活动对土壤环境的影响,该文以山东某石化企业地块为研究对象,共采集土壤样品 3 435 个,测定BTEX、PAHs和石油烃(C10-C40)含量并对其健康风险进行风险评估,研究结果表明:地块中苯、乙苯、间/对二甲苯、苯并[a]芘、石油烃(C10-C40)超过GB 36600 中的一类用地筛选值.风险评估可知上述 5 种关注污染物对人体的健康风险不可接受,计算出土壤中苯的风险控制值为 0.156 mg/kg,乙苯的风险控制值为 0.56 mg/kg,间二甲苯的风险控制值为 12.2 mg/kg,对二甲苯的风险控制值为 12.3 mg/kg,石油烃(C10-C40)的风险控制值为 826 mg/kg.综合<GB 36600>中第一类用地筛选值的相关说明,给出了该地块的建议修复目标值为:苯 1 mg/kg、乙苯 7.2 mg/kg、间对二甲苯 163 mg/kg、石油烃(C10-C40)826 mg/kg.
Abstract
To investigate the impact of petrochemical production activities on the soil environment,this study focused on a land parcel of a petrochemical company in Shandong.A total of 3435 soil samples were collected and analyzed for the concentrations of BTEX,PAHs,and petroleum hydrocarbons(C10-C40).Health risk assessments were conducted based on the results.The findings revealed that the concentrations of benzene,toluene,ortho-/para-xylene,benzo[a]pyrene,and petroleum hydrocarbons(C10-C40)in the land parcel exceeded the screening values specified in<GB 36600>for Class I land.The risk assessment indicated that the health risks associated with the aforementioned five pollutants are unacceptable for human exposure.The calculated risk control values for soil were determined as follows:0.156 mg/kg for benzene,0.56 mg/kg for toluene,12.2 mg/kg for m-xylene,12.3 mg/kg for p-xylene,and 826 mg/kg for petroleum hydrocarbons(C10-C40).Considering the relevant specifications provided in<GB 36600>for Class I land screening values,suggested remediation target values for the land parcel were proposed as follows:1 mg/kg for benzene,7.2 mg/kg for toluene,163 mg/kg for m-/p-xylene,and 826 mg/kg for petroleum hydrocarbons(C10-C40).
关键词
BTEX/PAHs/石油烃(C10-C40)/泰森多边形法/筛选值Key words
BTEX/PAHs/petroleum hydrocarbons(C10-C40)/Thiessen polygon method/screening values引用本文复制引用
出版年
2024
NETL
NSTL
万方数据