Formation Potential of N-DBPs and Assessment of Ecological Risks in Typical Water Sources at Home
With paying more attention to the genotoxicity and cytotoxicity of nitrogen-containing disinfection by-products(N-DBPs),the research on the ecological risk of the generation and control of N-DBPs in drinking water has become a hot spot of concern in recent years.Based on the analysis of previous research,the spatial distribution characteristics of N-DBPs in typical water sources is studied at home,and evaluate the potential ecological risk of N-DBPs in typical water sources at home by using the method of risk quotient,and also focus on the relationship between organic index and N-DBPs.The results show that there were regional differences in the distribution characteristics of DON and N-DBPs,which are generally characterized by high in the north and south,low central,higher in the eastern region,higher in the economically developed region and higher in the Pearl River Delta region in the eastern coastal cities.Combined with the evaluation method of ecological risk,using the existing data to make a preliminary estimation,it is found that the ecological risk of some urban water sources presents low risk,and the ecological risk of reservoir water source N-DBPs is generally higher than that of river water source.UV254 had a good correlation with the potential of N-DBPs,and can be used as an alternative index of the potential of N-DBPs.The research results can provide important support for the good restoration and protection of water sources at home and ensure the safety of drinking water.
万方数据
维普
