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目的了解云南省“鲁甸8.3地震”后灾区饮用水水质变化情况,为政府制定灾区公共饮用水卫生安全干预措施提供科学依据。方法 2014年8月4日-10月3日,在鲁甸县地震重点受灾区域采集居民生活饮用水样品,并在现场实验室对水样进行9个核心指标的检测。检测结果按照来源、类型、时间、指标构成等分析合格率变化情况。结果共在274个不同类型水样采集点采集到700份水样,9项指标总体合格率为55.8%;各型水质以储水桶合格率最高,达81.1%;微生物指标及消毒指标合格率较感官指标合格率低;地震后期(37~40周)水质合格率为68.0%,明显高于地震初期的41.2%(32~33周)。结论鲁甸灾区饮用水水质灾后初期受到影响,经卫生部门采取措施干预,保障了地震后期水质合格率总体变化平稳。地震灾后主要影响水质卫生学标准的指标是微生物指标,提示地震灾后对饮用水进行水源管理和消毒工作至关重要。
Objective To understand the changes of drinking water quality in disaster areas after the “8.3 Ludian” earthquake in Yunnan Province and provide a scientific basis for the government to formulate health and safety intervention measures for public drinking water in disaster areas. Methods From August 4, 2014 to October 3, 2014, samples of drinking water for residents were collected from key affected areas in Ludian County earthquake. Nine core indicators of water samples were collected from field laboratories. Test results in accordance with the source, type, time, indicators such as composition analysis of the rate of change. Results A total of 700 water samples were collected from 274 different types of water sample collection sites. The overall pass rate of 9 indexes was 55.8%. The highest passing rate of water quality was 81.1% for all types of water samples. The passing rate of microbial indexes and disinfection indexes The qualified rate of sensory index was low. The qualified rate of water quality in the later period of earthquake (37-40 weeks) was 68.0%, which was obviously higher than 41.2% (32-33 weeks) of early earthquake. Conclusion The drinking water quality in the affected area of Ludian affected early in the disaster and the health department took measures to intervene so as to ensure that the post-quake water quality passing rate generally changed smoothly. The indicators that mainly affect the hygiene standards of water quality after the earthquake are the indicators of microorganisms, which indicates that it is very important to carry out water source management and disinfection of drinking water after the earthquake.