Ding Liang, Wang Shui, Zhu Chi, Xia Weiyi, Qu Changsheng
Jiangsu Environmental Engineering Technology Co., Ltd., Nanjing, 210036, Jiangsu, China.
Jiangsu Provincial Academy of Environmental Science, Jiangsu Provincial Key Laboratory of Environmental Engineering, Nanjing, 210036, Jiangsu, China.
Bull Environ Contam Toxicol. 2022 Oct;109(4):585-591. doi: 10.1007/s00128-021-03409-y. Epub 2022 May 10.
The concentrations of six priority phthalate esters (PAEs) in 700 soil samples and 110 sediment samples from an area in China containing plastic solid waste (PSW) recycling sites were determined. The total concentrations of the six PAEs in soil and sediment were not detected - 274 and not detected - 597 mg kg, respectively, and the mean concentrations in soil and sediment were 14.4 and 31.7 mg kg, respectively. The dominant PAEs were di(2-ethylhexyl) phthalate and di-n-butyl phthalate. PAEs were detected in soil collected from the surface to 0.5 m below ground level around the PSW recycling sites, and the concentrations were markedly higher in these areas than at other polluted sites. PSW recycling is an important source of PAEs to soil and sediment. The di(2-ethylhexyl)phthalate concentrations in soil were higher than the relevant concentrations that pose environmental risks for sensitive land uses and non-sensitive land uses (42 and 121 mg kg, respectively), indicating emissions of PAEs from PSW recycling sites may pose environmental risks. The results indicate that PAE pollution at PSW sites needs to be better controlled and managed.
对中国某地区包含塑料固体废物（PSW）回收站点的700份土壤样本和110份沉积物样本中的六种优先邻苯二甲酸酯（PAEs）浓度进行了测定。土壤和沉积物中六种PAEs的总浓度分别为未检出 - 274毫克/千克和未检出 - 597毫克/千克，土壤和沉积物中的平均浓度分别为14.4毫克/千克和31.7毫克/千克。主要的PAEs是邻苯二甲酸二（2-乙基己基）酯和邻苯二甲酸二正丁酯。在PSW回收站点周围从地表到地下0.5米处采集的土壤中检测到了PAEs，这些区域的浓度明显高于其他污染场地。PSW回收是土壤和沉积物中PAEs的一个重要来源。土壤中邻苯二甲酸二（2-乙基己基）酯的浓度高于敏感土地利用和非敏感土地利用的相关环境风险浓度（分别为42毫克/千克和121毫克/千克），这表明PSW回收站点排放的PAEs可能会带来环境风险。结果表明，PSW站点的PAE污染需要得到更好的控制和管理。
