Abstract：
This study explored the levels, distribution, potential sources, ecological risks and estrogenic activities of 14 bisphenol analogues (BPs) in soil under eight land-use types in the megacity of Chengdu, China. Eleven BPs were detected in the soil samples and the total concentrations ranged from 32.3 to 570 ng/g d.w. Levels of bisphenol BP (BPBP) in the soil (up to 208 ng/g d.w.) only second to the most dominant compound bisphenol A (BPA) were found. Relatively higher Σ14BP accumulation in the soil was observed in the commercial and residential areas (median: 136 ng/g d.w. and 131 ng/g d.w.) compared with agricultural area (median: 67.5 ng/g d.w.). Source identification indicated the role of atmospheric particulate deposition and consecutive anthropogenic activities in BP emission. The ecotoxicity assessment implied that BPA, bisphenol S (BPS), bisphenol F (BPF) and bisphenol PH (BPPH) might pose low to medium risk to the ecosystem due to their extensive use and biological effects. The calculated 17β-estradiol equivalents of BPs were in the range of 0.501-7.74 pg E2/g d.w, and the estrogenic activities were inferior to those contributed by natural estrogens in the soil.
摘要：
这项研究探讨了水平，分布，潜在来源,成都市8种土地利用类型下14种双酚类似物(BPs)的生态风险和雌激素活性,中国。在土壤样品中检测到11种BPs，总浓度为32.3-570ng/gd.w。土壤中双酚BP（BPBP）的水平（高达208ng/gd.w.）仅次于最主要的化合物双酚A（BPA）。与农业区（中位数：67.5ng/gd.w.）相比，在商业和居民区（中位数：136ng/gd.w.和131ng/gd.w.）在土壤中的Σ14BP积累相对较高。来源识别表明大气颗粒物沉积和连续的人为活动在BP排放中的作用。生态毒性评估暗示双酚A，双酚S(BPS),双酚F（BPF）和双酚PH（BPPH）由于其广泛的用途和生物学效应，可能对生态系统构成中低风险。计算的17β-雌二醇当量的BP在0.501-7.74pgE2/gd.w范围内，雌激素活性低于土壤中天然雌激素。
