西南某市两城区自来水壬基酚浓度调查  

Investigation of nonylphenol pollution in tap water in two districts in one southwest city

作　　者：周杰[1] 杨雪松[1] 杨静[1] 俞捷[1] 何丽婷[1] 高凤[1] 许洁[1] 

机构地区：[1]遵义医学院公共卫生学院,贵州遵义563099

出　　处：《现代预防医学》2017年第9期1714-1717,共4页Modern Preventive Medicine

基　　金：2016年国家级大学生创新训练项目(201610661036);2016年贵州省大学生创新训项目省级重点项目(201610661036);遵义医学院研究生社会实践基金(zy-ysh2015001;zy-ysh2016001);遵义医学院大学生创新基金(20155041;20155011)

摘　　要：目的了解壬基酚(NP)在西南某市城区(A城区和B城区)自来水中的浓度,为防治壬基酚污染提供数据支持。方法 (1)采样点:于2016年7月16日,根据水质检测采样点的设置要求,各城区在水源取水口处设置1个采样点,出厂水口设置1个采样点,末梢水按一定的距离梯度,在不同的断面设置3个采样点。A、B两城区共10个采样点。(2)样本量:每个采样点均重复采集3次样品,共采集样品30份。(3)样品处理:采用高效液相色谱仪进行。结果水源水NP浓度范围为0.195~1.174μg/L,出厂水NP浓度范围为0.269~1.042μg/L,末梢水NP浓度范围为0.32~5.434μg/L。A城区末梢水NP的平均浓度是B城区的6倍(P<0.05)。结论本次调查结果显示西南某市两城区自来水中均检出NP,水源水NP平均浓度与全国其他地区相比处于中等水平。A城区末稍水平均浓度高于B城区,低于美国淡水水质基准标准6.6μg/L,有必要对居民生活污水及工业废水进行治理。Objective To survey the nonylphenol（NP） concentration of tap water in two districts （A district and B district）of one south - west city and to provide data support for the prevention and control of NP pollution. Methods （ Sampling point ： on July 16,2016, according to the water quality testing sampling points requirements ,set a sampling point in the water source and the factory outlet of each city, and set 3 sampling points in different sections in the tip water by a certain distance gradient. In two urban areas（ A and B）a total of 10 sampling points were set. （Sample size：repeatedly collected three times at each point, and 30 samples were collected in all. （ Samples handing： used high - performance liquid chromatograph. Results NP were detected in the tap water of A district and B district, and the rate of detection was 100% ,with the concentration range of source water being 0. 195 - 1. 174μg/L, the water outlet of waterworks being 0. 269 - 1. 0421μg/L, tip water being 0.32 -5. 434μg/L. The concentration of tip water of A district was six times higher than B district （ t = - 4. 348, P 〈 0.05 ）. Conclusion The survey results show that tap water in both cities was detected in NP, and the NP average concentration of sources water at a moderate level compared to the rest cites of China. The NP average concentration of tip water in A was higher than that in B, lower than the US fresh water reference standard 6.6μg/L. It is necessary to treat residents living sewage and industrial wastewater.

关 键 词：西南某市 自来水 壬基酚 

分 类 号：R195[医药卫生—卫生统计学]