Abstract:In order to understand the contamination of Pseudomonas aeruginosa(PA) and bromate in mineral water before and after the implementation date of national standard for natural drinking mineral water(GB 8537-2008),and to analyse the contamination reason,PA and bromate,in mineral water samples,were respectively detected using filter membrane methods and Ion chromatography which based on the national methods(GB /T8538-2008 /54 and GB/T 5750.10-1995).It was found that,during 2008.01~2009.10,the positive rates of PA in both source water and finished water were respectively 11.43% and 35.42%,and that of bromate in finished water was 42.12%.However,during 2009.10~2010.09,the values of the three were 30.30%,17.65% and 18.10%,respectively.The PA contamination in the finished water could be respectively attributed to the producing process and the pollution of the source water.Thus,there still exist the excessive PA and bromate in mineral water after the implementation of GB 8537-2008.
