Risks of the Meiliang Bay Source of Drinking Water in Taihu Lake (MLBSDW- THL) on Environmental Health

Abstract

There was a cyanobacteria bloom occurred in the area of Meiliang Bay source of drinking water in Taihu Lake (MLB-SDW-THL) in 2007 when MLB-SDW-THL couldn't be used to make a tap water for people drinking and washing. Three years later, whether MLB-SDW-THL had biochemical effects on the mouse serum was researched for predication of its risks on human and environmental health. The water samples of MLB-SDW-THL were taken at N31.53 and E120.21 in March of 2010 and kept at 4°C for the experiment. Measurement of 22 organic pollutants with DSQ II Single Quadruple GC/MS in selected ion monitoring (SIM) indicated that 11 of them were discovered in MLB-SDW-THL. Mice Mus musculus were fed with MLB-SDW-THL for 90d under standard conditions. The eighteen serum biochemical parameters, the clinical parameters used in China hospitals, were measured by Automatic Biochemical Analysis/RerLi 600 and the parameter data treated by One-Way ANOVA statistic approach. The results showed that among the measured eighteen serum biochemical parameters, six of the 18 parameter levels were decreased significantly (0.01<P or 0.05<P) including alanine transaminase (ALT, 57% lower), aspartate aminotransferase (AST, 36% lower); cystatin C (Cys C, 25% lower); triglycerol (TG, 79% lower); high density lipoprotein-cholesterol (HDL-C, 12% lower); and lipase (LPS, 16% lower). It indicated that the MLB-SDW-THL had biochemical toxicities on the serum of mouse Mus musculus which might induce metabolism disorders, liver and kidney diseases, cardiovascular diseases, brain disorders, pancreas diseases and survival year reduced in the elderly people et al. The data suggest that the biochemical risks might be mainly from PAHs and din -butyl phthalate discovered at least in MLB-SDW-THL which should be controlled for protection of human and environmental health.