微信公众号

官网二维码
中国癌症防治杂志

中国癌症防治杂志 ›› 2016, Vol. 8 ›› Issue (6): 387-390.doi: 10.3969/j.issn.1674-5671.2016.06.11

• 流行病学调查 • 上一篇    下一篇

广西肝癌高发区不同水源微囊藻毒素含量调查

  

  1. 530021 南宁 1广西壮族自治区肿瘤防治研究所; 532100 扶绥 2扶绥县人民医院
  • 出版日期:2016-12-26 发布日期:2017-01-16
  • 通讯作者: 邓伟 9608946@qq.com
  • 基金资助:
    国家自然科学基金资助项目 81260319   81660561

Microcystin content of different water sources in a region of Guangxi showing high incidence of liver cancer

  • Online:2016-12-26 Published:2017-01-16

PDF (PC)

353

赞

摘要：

目的 了解广西肝癌高发区扶绥县饮用水水体微囊藻毒素(microcystin,MC)污染状况。方法 采集扶绥县11个自然村水源水样及28个自然村的末梢水水样,同时记录采样时水温及pH值。采用酶联免疫吸附法测定水样中的MC含量。结果 (1)水源水和末梢水之间温度和pH值差异无统计学意义(P>0.05)。(2)水源水和末梢水MC平均浓度分别为(15.64±2.08) ng/L、(14.42±2.28) ng/L,两者差异无统计学意义(P>0.05)。水源水中河水MC浓度最高,为16.69 ng/L,其他依次为地下河水和井水,各种水源水间MC浓度差异无统计学意义(P>0.05)。末梢水中MC浓度从高到低依次为水库水、井水、地下河水和河水,来源不同的末梢水间MC浓度差异无统计学意义(P>0.05)。(3)经水厂处理和未经水厂处理的末梢水水样MC平均浓度分别为(13.90±2.62) ng/L、(14.71±2.09) ng/L,两者差异亦无统计学意义(P>0.05)。结论 广西肝癌高发区扶绥县饮用水MC浓度均未超过WHO推荐的安全限值,不同水源水间的MC浓度无明显差异。

 
 
 
 
 

关键词:

Abstract:

Objective To investigate microcystin contamination in water bodies that feed the water supply system of Fusui County, which shows a high incidence of liver cancer in Guangxi Province. Method Water sources in 11 villages and tapwater in 28 villages were sampled. Temperature and pH were recorded during sampling,and microcystin was assayed using ELISA. Result Source water and tapwater did not differ significantly in temperature or pH. Average microcystin concentration was(15.64±2.08) ng/L in source water,and(14.42±2.28) ng/L in tapwater. These values were not significantly different. Microcystin concentration in source water varied with the trend: river>subterranean river>well water. Microcystin concentration in tapwater varied with the trend: reservoir water>well river>subterranean river>river water. However, these trends were not statistically significant. The concentration of microcystin was 16.69 ng/L in river water, which was the highest concentration of all water sources tested. Average microcystin concentration was(13.90±2.62) ng/L in treated tapwater and(14.71±2.09) ng/L in untreated tapwater. These values were not significantly different. Conclusion Microcystin concentration did not exceed the WHO-recommended limit of 0.001 mg/L in any sample tested.
 
 
 

Key words: