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- W2377537775 abstract "[Objective]To analyzethe testing results of 462 substandard samples of drinking water and its causes,and provide scientific evidence for improving the quality of drinking water.[Methods]The sampling,preservation,transportation and examination were performed in accordance with the Standard Examination Methods for Drinking Water(GB/T5750-2006).And the result judgment was based on theGB5749-2006.[Results] The main reasons for quality failure of the water samples were that 45.0% exceeded turbidity,30.1% exceeded chromaticity standard,29.4% exceeded total bacterial count standard,22.9% exceeded arsenic standard,17.5% exceeded manganese standard,12.3% exceeded ammonia nitrogen standard.The over standard proportion of toxicological indicators data of 2010 was significantly higher than that of 2011(χ2=4.33,P0.05),as well as arsenic(χ2=6.63,P0.05),manganese(χ2=7.31,P0.01)and ammonia(χ2=18.23,P0.01).[Conclusion]The main reasons for quality failure of the water samples are arsenic and manganese over standards.It is necessary to strengthen drinking water disinfection and to reduce the pollution of surface water." @default.
- W2377537775 created "2016-06-24" @default.
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- W2377537775 date "2012-01-01" @default.
- W2377537775 modified "2023-09-23" @default.
- W2377537775 title "Quality analysis of 462 substandard samples of drinking water" @default.
- W2377537775 hasPublicationYear "2012" @default.
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