Chemical evaluation of potable water in Eastern Qinghai Province, China: human health aspects.
Chemical evaluation of potable water in Eastern Qinghai Province, China: human health aspects.
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DOI：
10.1016/j.envint.2005.05.022
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发表时间：
2006
影响因子：
11.8
通讯作者：
J. Virkutyte;M. Sillanpää
中科院分区：
文献类型：
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作者：
J. Virkutyte;M. Sillanpää
对电导率、pH值、CODMn、营养物浓度、氯化物和硫酸盐浓度、总溶解钠、钾、钙、镁、锰、铁、镉、铜、砷、镍、锌、铬和铅进行了评估，以澄清对中国青海省饮用水质量和安全的担忧。为此目的，在2003年对中国进行考察访问期间，从不同的村庄、青海湖和靠近平安镇的药用泉水中采集了12个水样。结果表明，青海湖的营养盐浓度超过了中国和世界卫生组织饮用水标准（3.2 mg l− 1的TOT-N和0.2 mg l− 1的TOT-P）。矿泉水度假村样品中存在高电导率（550 mS m−1）应引起公众关注。此外，药用泉水的样本显示出高浓度的Fe（高达1.9 mg l−1），As（高达0.1 mg l−1）和Ni（0.05 mg l−1），如果每天饮用水，可能对人体健康有害。Cu、Cd、Cr和Pb的浓度均未超过中国国家饮用水标准和WHO饮用水标准，因此，采样区的水不会对消费者的健康构成任何重大威胁。
Electric conductivity, pH, CODMn, nutrient concentration, chloride and sulfate concentrations, total dissolved sodium, potassium, calcium, magnesium, manganese, iron, cadmium, copper, arsenic, nickel, zinc, chromium and lead were evaluated to clarify concerns about the quality and safety of water used for drinking purposes in Qinghai Province, China. For this purpose, 12 water samples were collected from different villages, Qinghai (Koko Nor) Lake and medicinal springs close to the Town of Pingang during a study visit to China in 2003. The results showed that National Chinese and WHO drinking water standards were exceeded for nutrient concentration (3.2 mg l−1of TOT-N and 0.2 mg l−1of TOT-P) from Qinghai Lake. The presence of elevated electric conductivity (550 mS m−1) in mineral water resort samples should be a matter of a public concern. Also, samples from medicinal springs showed high concentrations of Fe (up to 1.9 mg l−1), As (up to 0.1 mg l−1) and Ni (0.05 mg l−1), which may be detrimental for human health if the water is consumed on a daily basis. The concentrations of Cu, Cd, Cr and Pb did not exceed the National Chinese and WHO drinking water standards, and therefore, water from the sampling area does not pose any significant threat to the consumers' health regarding these metals.