Key Laboratory for Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China.
Int J Environ Res Public Health. 2018 Jan 6;15(1):85. doi: 10.3390/ijerph15010085.
The potential toxic elements (PTEs) pollution problems in many rural industrial wastelands have been observed to be conspicuous. Therefore, 40 top soil samples were collected from the wasteland of a typical rural metallurgy factory in Baoding, China. The total concentrations of six key PTEs were measured. The soil properties and speciation of the PTEs were also identified. Extremely high concentrations of As, Cd, Pb, and Zn were observed in the surface soils. Using the PTEs concentration in the top soils of the rural industrial wasteland, the following indices of pollution were calculated: the pollution load index (PLI), the geo-accumulation Index (I), the risk assessment code (RAC), and the health risk assessment (HRA). The analysis of the PLI and I indicated that site #1 was relatively clean, while sites #2 and #3 were heavily polluted. The results of the RAC showed that PTEs in top soils at sites #2 and #3 were significantly increased ( < 0.05) for Cd and Zn. The HRA indicated that both As and Pb presented non-carcinogenic risks to children and adults at sites #2 and #3. Our findings can be a reference for risk prevention of industrially abandoned land in rural China.
许多农村工业荒地存在明显的潜在有毒元素（PTEs）污染问题。因此，在中国保定的一个典型农村冶金厂的荒地中采集了 40 个表层土壤样本。测量了六种关键 PTEs 的总浓度，并确定了 PTEs 的土壤特性和形态。表层土壤中观察到 As、Cd、Pb 和 Zn 的浓度极高。利用农村工业荒地表层土壤中的 PTEs 浓度，计算了以下污染指数：污染负荷指数（PLI）、地积累指数（I）、风险评估码（RAC）和健康风险评估（HRA）。PLI 和 I 的分析表明，站点#1 相对清洁，而站点#2 和#3 则受到严重污染。RAC 的结果表明，站点#2 和#3 表层土壤中 Cd 和 Zn 的 PTEs 明显增加（<0.05）。HRA 表明，As 和 Pb 对站点#2 和#3 的儿童和成人均存在非致癌风险。我们的研究结果可为中国农村工业废弃地的风险防范提供参考。
