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目的了解重庆市涪陵区李渡社区和义和镇不同饮用水及鱼鸭中微囊藻毒素(MC-LR)污染现状。方法 2013~2014年在重庆市涪陵区李渡社区和义和镇开展了不同饮用水及鱼鸭MC-LR污染监测,分别采集饮用水及鱼鸭样品,用酶联免疫吸附(ELISA)法测定MC-LR含量。结果 2013~2014年不同饮用水中MC-LR含量均符合国家饮用水(GB5749-2006)卫生标准1μg/L;2013年鱼和鸭肉中MC-LR均值分别为0.39、0.47μg/kg;2014年鱼和鸭肉中MC-LR均值分别是0.58、0.50μg/kg。不同年份水源水、出厂水、末梢水、桶装水中MC-LR含量差异无统计学意义(P>0.05),不同年份井水中MC-LR含量差异有统计学意义(P<0.05),不同年份鱼肉、鸭肉中MC-LR含量差异无统计学意义(P>0.05)。结论重庆市涪陵区无论是井水、自来水、桶装水、鱼肉和鸭肉中均检出MC-LR,但污染程度较轻。
Objective To understand the status of microcystins (MC-LR) contamination in different drinking water and fish ducks of Lidu community and Yihe town in Fuling district of Chongqing. Methods From 2013 to 2014, MC-LR monitoring of drinking water and fish duck was conducted in Lidu Community and Yihe Town, Fuling District, Chongqing. Samples of drinking water and fish and duck samples were collected. The levels of MC -LR content. Results The MC-LR contents of different drinking water from 2013 to 2014 all met the national standard of 1 μg / L for drinking water (GB5749-2006). The mean MC-LR of fish and duck in 2013 was 0.39 and 0.47 μg / kg, respectively. The mean values of MC-LR in fish and duck were 0.58 and 0.50 μg / kg, respectively. There was no significant difference in MC-LR content in water source, ex-factory water, peripheral water and bottled water in different years (P> 0.05). There was significant difference in MC-LR content in different years (P <0.05) There was no significant difference in MC-LR content between fish and duck (P> 0.05). Conclusion MC-LR was detected in well water, tap water, bottled water, fish and duck meat in Fuling District of Chongqing Municipality, but the degree of pollution was light.