Dai Guohua, Wang Bin, Huang Jun, Dong Rui, Deng Shubo, Yu Gang
School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Tsinghua University, Beijing 100084, China.
School of Environment, State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Tsinghua University, Beijing 100084, China.
Chemosphere. 2015 Jan;119:1033-1039. doi: 10.1016/j.chemosphere.2014.08.056. Epub 2014 Oct 8.
This work investigates, for the first time, the occurrence and sources of 15 pharmaceuticals and personal care products (PPCPs) in surface water of Beijing, one of most densely populated cities in the world, in three sampling events representing different seasonal flow conditions. The detection frequencies of most PPCPs were in the range of 50-100%. The median concentrations of the selected PPCPs ranged from not detected to 4200 ng L(-1) (caffeine). Generally, higher PPCP levels were observed in early spring, indicating both low flow condition and cold-water temperature might enhance their persistence. Source apportionment showed freshly discharged untreated sewage (67%) significantly contributed to the PPCP burden in the Beiyun River, which provides important information for environmental management.
本研究首次对世界上人口最密集的城市之一北京的地表水中15种药品及个人护理用品（PPCPs）的出现情况和来源进行了调查，调查涵盖了代表不同季节水流条件的三次采样活动。大多数PPCPs的检测频率在50%-100%之间。所选PPCPs的中位浓度范围从未检出到4200 ng L⁻¹（咖啡因）。一般来说，早春时观察到较高的PPCP水平，这表明低水流条件和冷水温度都可能增强它们的持久性。源解析表明，未经处理的新排放污水（67%）是北运河PPCP负荷的主要来源，这为环境管理提供了重要信息。
