基于3MRA模型废矿物油污染组分安全阈值的研究

Research on the Safety Threshold of Waste Mineral Oil Contamination Components based on 3MRA Model

文章运用3MRA模型,对废矿物油中8中污染组分在场地堆存时安全浓度阈值进行研究。结果表明该场地对苯并(a)芘、二苯并[a,h]蒽、Zn和甲苯的防护效果较好,Pb和Ni2+安全浓度阈值较高,而苯和Cr6+的安全浓度阈值分别只有34μg/g和4μg/g,且浓度阈值的升高对人群保护比和保护概率影响较大,故在案例场地需要重点关注苯和Cr6+的浓度变化,并制定合适的风险管理策略。

In the article, the 3MRA model was applied to investigate the safety concentration thresholds of eight contaminant components in waste mineral oil when they were stored at the site. The results show that the site is well protected against benzo(a)pyrene, dibenzo[a,h]anthracene, Zn and toluene, and the safety concentration thresholds of Pb and Ni2+are high, while the safety concentration thresholds of benzene and Cr6+are only 34 μg/g and 4 μg/g, respectively, and the increase of the concentration thresholds has a greater impact on the protection ratio and protection probability of the population, so it is necessary to focus on the concentration of benzene and Cr6+at the case site changes and develop appropriate risk management strategies.