Institute of Applied Radiation of Shanghai, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China.
Institute of Applied Radiation of Shanghai, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China.
Ecotoxicol Environ Saf. 2018 May 15;152:98-103. doi: 10.1016/j.ecoenv.2018.01.036. Epub 2018 Feb 4.
The environmental behaviors of emerging pollutants, benzophenone-type UV filters (BP-UV filters) and their derivatives were investigated in four wastewater treatment plants (WWTPs), and their receiving surface waters in Shanghai. The concentration level of selected BP-UV filters in the WWTPs was detected from ngL to μgL. BP (621-951ngL) and BP-3 (841-1.32 × 10ngL) were the most abundant and highest detection frequency individuals among the target BP-UV filters in influents, whereas BP (198-400ngL), BP-4 (93.3-288ngL) and BP-3 (146-258ngL) were predominant in effluents. BP-UV filters cannot be completely removed and the total removal efficiency varied widely (-456% to 100%) during the treatment process. It can be inferred that the usage of BP and BP-3 are higher than other BP-UV filters in the study area. The lowest and highest levels were BP-2 (ND-7.66ngL) and BP-3 (68.5-5.01 × 10ng L) in the receiving surface water, respectively. Interestingly, the seasonal variation of BP-3 is larger than those of other BP-UV filters in surface water from Shanghai. There is no obvious pollution pattern of BP-UV filters in the surface water from the cosmetic factory area. The correlation analysis of BP-UV filters between WWTPs effluents and nearby downstream water samples suggested that BP-UV filters emitted from some WWTPs might be the main source of receiving surface water. Preliminary risk assessment indicated that the levels of BP-UV filters detected by the effluent posed medium to high risk to fish as well as other aquatic organisms.
本研究考察了四种污水处理厂（WWTP）及其接收的上海市地表水中新兴污染物苯并三唑型紫外线滤光剂（BP-UV 滤光剂）及其衍生物的环境行为。所选 BP-UV 滤光剂在 WWTP 中的浓度水平为纳克每升至微克每升。在进水口，BP（621-951ngL）和 BP-3（841-1.32×10ngL）是目标 BP-UV 滤光剂中最丰富和最高检测频率的个体，而 BP（198-400ngL）、BP-4（93.3-288ngL）和 BP-3（146-258ngL）则是出水口的主要存在形式。BP-UV 滤光剂不能被完全去除，且在处理过程中总去除效率差异很大（-456%至 100%）。可以推断，在研究区域内，BP 和 BP-3 的使用量高于其他 BP-UV 滤光剂。在受纳地表水中，BP-2（ND-7.66ngL）和 BP-3（68.5-5.01×10ngL）的浓度最低和最高。有趣的是，BP-3 在上海地表水中的季节性变化大于其他 BP-UV 滤光剂。在化妆品厂地区的地表水中，BP-UV 滤光剂没有明显的污染模式。对 WWTP 出水口和附近下游水样中 BP-UV 滤光剂的相关性分析表明，来自某些 WWTP 的 BP-UV 滤光剂可能是受纳地表水中的主要来源。初步风险评估表明，从废水出口检测到的 BP-UV 滤光剂对鱼类和其他水生生物的水平具有中到高风险。
