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赫章县土法炼锌致镉污染现状调查 被引量:3
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作者 孙亮 赵亮 +3 位作者 张丽君 石聪明 朱绪文 王克跃 《中国公共卫生》 CAS CSCD 北大核心 2013年第4期541-543,共3页
目的了解土法炼锌后镉污染的现状,以及造成的环境污染问题。方法采集镉污染区及对照区的土壤、8种主要农作物和4种动物内脏、饮用水等样品,每类样品分区各采集6份,分析生活环境中镉含量;对污染区54名居民及对照点40名居民进行生活习惯... 目的了解土法炼锌后镉污染的现状,以及造成的环境污染问题。方法采集镉污染区及对照区的土壤、8种主要农作物和4种动物内脏、饮用水等样品,每类样品分区各采集6份,分析生活环境中镉含量;对污染区54名居民及对照点40名居民进行生活习惯和基本情况问卷调查,并采集一次性尿样测定人群尿镉水平。结果镉污染区内土壤样品含镉量为(15.331 4±8.022 1)μg/g,高于对照区(2.067 5±2.371 6)μg/g(P<0.01);8种主要农作物样品及猪肝、猪肾、鸡肝3种动物内脏样品含镉量均高于对照区的(P<0.05);饮用水含镉量为(0.648 5±0.230 1)μg/L,高于对照区的(0.002 2±0.000 9)μg/L(t=10.282,P<0.01);镉暴露组人群尿镉水平为[9.57(2.55~47.75)]μg/gCr,高于对照组的[2.55(0.68~9.86)]μg/gCr(t=7.418,P<0.01)。结论贵州省赫章县妈姑镇不但土壤镉本底水平高于对照地区,土法炼锌地区更为严重,而且主要农作物、动物内脏、饮用水含镉量及人群尿镉水平均高于对照地区。 展开更多
关键词 土法炼锌 镉污染 镉负荷水平
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Quality of Potable Water Available to the Residents of Anambra State, Nigeria
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作者 Chigozie John Onyinye Anarado Charity Ebere Anarado +4 位作者 Benjamin Chimezie Izuagbachukwu Uzorchukwu Michael Ogu Amarachi Maduka Chinyelu Ijeamaka Egwuatu Valentine Ifenna Onwukeme 《Natural Resources》 2019年第11期395-414,共20页
Public pipe-borne water system had collapsed in Anambra state of Nigeria, for over fifteen years, challenging the residents of the state to resort to alternative sources of potable water, notably, boreholes. It is imp... Public pipe-borne water system had collapsed in Anambra state of Nigeria, for over fifteen years, challenging the residents of the state to resort to alternative sources of potable water, notably, boreholes. It is imperative to continuously assess the quality of the water. In this work, two boreholes each in nineteen communities, one from Aguluzigbo, in three local government areas?(Anaocha, Awka-North, Awka-South) in the state were sampled, and tested for pH, Conductivity, Hardness, Total Suspended Solids, Lead, Arsenic, Cadmium, Bacteria and Yeast loads. The water samples were all soft and mostly acidic. While there were not much threats of yeast, the aerobic bacteria counts were above the acceptable limits. The Lead, Arsenic and Cadmium concentrations were above the tolerable limits in most communities in Anaocha and Awka-South. Arsenic, Lead, Cadmium were absent in all the samples in Awka-North except in four communities where Cadmium was present. Suspended solid contents were also high in all the Local Government Areas. Overall, the quality of the water consumed by the people in the selected population calls to question?of?the water and sanitation component of the public health system. 展开更多
关键词 Potable Water cadmium Lead ARSENIC pH Bacteria load Total Suspended SOLIDS CONDUCTIVITY Hardness
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