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目的了解兰州市各级疾病预防控制中心(CDC)水质检测能力及存在的问题。方法采用整群抽样的方法,选取兰州市及其区、县共9个CDC进行水质检测并对存在的问题进行专项调查。结果 9个CDC常规指标平均检测能力为26项,常规指标为中级水平,非常规指标和全项指标均为低级水平,兰州市的检测水平高于区、县(P<0.01);常规指标和非常规指标的计量认证率分别为61.1%和13.5%,兰州市认证水平高于区、县(P<0.01);导致兰州市部分非常规项目无法检测的原因为无标准品(58.3%)和无仪器(41.7%);导致区、县部分常规项目无法检测的原因包括缺乏技术人员(41.1%)、无仪器(34.3%)、无标准品(24.1%)和无试剂(0.5%),非常规项目不能检测的原因包括无仪器(39.6%)、缺乏技术人员(34.8%)和无标准品(24.6%)。结论兰州市各级CDC水质检测能力较薄弱,尤其是区、县的差距还比较大,实验室建设能力低下是主要原因。
Objective To understand the ability and existing problems of CDC water quality testing at all levels in Lanzhou City. Methods A cluster sampling method was used to select nine CDCs in Lanzhou City and its districts and counties for water quality testing and conduct special investigations on the existing problems. Results The average detection ability of nine CDC routine indexes was 26, the common indexes were middle level, unconventional indexes and all indicators were low level, Lanzhou was higher than that of districts and counties (P <0.01) The accreditation rates of unconventional indicators were 61.1% and 13.5% respectively, and the level of certification in Lanzhou was higher than that in districts and counties (P <0.01). The reasons that some unconventional projects in Lanzhou could not be detected were non-standard products (58.3%) and (41.7%). The reasons leading to the non-detection of some routine projects in districts and counties include lack of technical staff (41.1%), no instrument (34.3%), no standard (24.1%) and no reagent Reasons for the failure of the program include instrument-less (39.6%), lack of technicians (34.8%) and no standards (24.6%). Conclusion The water quality testing ability of CDC at all levels in Lanzhou is weak, especially in the districts and counties. The low ability of laboratory construction is the main reason.