A systemic ecological risk assessment based on spatial distribution and source apportionment in the abandoned lead acid battery plant zone, China

作者：Zhang, Yimei^*; Li, Shuai; Chen, Zhuang; Wang, Fei; Chen, Jie; Wang, Liqun

来源：Journal of Hazardous Materials, 2018, 354: 170-179.

DOI：10.1016/j.jhazmat.2018.04.054

• Heavy metals
• Source apportionment
• Ecological risk
• Vertical distribution
• Uncertainty evaluation

In China, potential heavy metal hazard around abandoned lead-acid battery plant (ALBP) area has been a great concern but without detailed report. The distribution and sources of heavy metals in soils and so by risk assessment associated with ALBP are conducted in this contribution, based on geographies and statistics. Pb and Zn are quantitively identified to be still emitted from ALBP soil, and Cd as well As are from agricultural activity. We investigate vertical metal distribution, and fortunately find that metals migrate within limit of 40 cm below topsoil, which is higher than groundwater table. The visualized stable depths are Zn 40 cm, Pb, As 20 cm, and Cd 40 cm. The mapped pollution load index (PLI) suggests a high pollution level exists in ALBP soil. The estimation of potential ecological risk index (PERI) indicates a light ecological risk in studied area, while As and Cd mainly from agricultural activity possess 54% of total E-ri. Health risk index (THI) is 0.178 for children, indicating non cancer risks may be ignored in observed area. Though calculated risk is temporarily affordable, soil remediation and reduction of agricultural chemical reagents are recommended for preventing potential cumulative risk from further bioconcentration of heavy metals.

• 出版日期2018-7-15
• 单位华北电力大学; 苏州科技大学; 华北电力大学（保定）