Department of Civil and Environmental Engineering, Water Environment Technology, Chalmers University of Technology, Göteborg, Sweden.
Water Sci Technol. 2010;62(5):1154-60. doi: 10.2166/wst.2010.923.
The occurrence of nonylphenol and several phthalates in water environments is highly undesired because of their negative effects on aquatic organisms. The objectives of this study were to identify emission sources of phthalates, nonylphenol and its ethoxylates (NP/EOs) in urban stormwater, and to quantify the substance fluxes from the source to the stormwater system, using the methodology of substance flow analysis (SFA). The SFA, applied on an urban motorway area, showed that phthalates are mainly emitted from vehicles and coated roofing material, whereas the major NP/EOs sources are vehicles and concrete. It was estimated that approximately 4.1 kg of four selected phthalates and more than 400 g of NP/EOs are emitted annually to stormwater in the studied area. The SFA approach presented in this study, using factors that express the emission rate of a specific substance from a specific source, could be applied in urban catchments of various character to estimate fluxes of water contaminants.
壬基酚和几种邻苯二甲酸酯在水环境中的存在是极不受欢迎的，因为它们会对水生生物产生负面影响。本研究的目的是确定城市雨水环境中邻苯二甲酸酯、壬基酚及其乙氧基化物（NP/EOs）的排放源，并利用物质流分析（SFA）方法量化从源到雨水系统的物质通量。SFA 在城市高速公路区域的应用表明，邻苯二甲酸酯主要来自车辆和涂覆的屋顶材料，而主要的 NP/EOs 来源是车辆和混凝土。据估计，在研究区域，每年有大约 4.1 千克的四种选定的邻苯二甲酸酯和约 400 克的 NP/EOs 排放到雨水系统中。本研究中提出的 SFA 方法使用表示特定物质从特定源排放的速率的因子，可以应用于各种性质的城市集水区，以估算水污染物的通量。
