摘要
目的了解重庆市公共场所水系统嗜肺军团菌污染现状,监测公共场所水系统清洗消毒效果,为卫生监督管理提供依据。方法依照卫生部《公共场所集中空调通风系统卫生规范》(2006年)附录A方法(2013-04-01前)和《公共场所集中空调通风系统卫生规范》WS 394-2012附录B方法(2013-04-01实施),采集本市多家公共场所冷却水、冷凝水、冷冻水、温泉水、淋浴水、游泳池水、生活用水等共399件水样品,进行嗜肺军团菌检测以及菌型分布检测。结果在399件样品中检出44件阳性,阳性率为11.0%;空调系统水嗜肺军团菌阳性检出率逐渐下降(29.0%/15.6%/9.0%),差异有统计学意义(χ~2=8.53,P<0.05);空调系统水嗜肺军团菌检出率高于生活水嗜肺军团菌检出率(13.9%/7.1%),差异有统计学意义(χ~2=4.608,P<0.05);检出44株嗜肺军团菌,其中LP1型有32株(72.7%);LP2-14型有12株(27.3%)。结论本市公共场所水系统中存在嗜肺军团菌污染,应加强公共场所水系统的清洗消毒,严格监管。
ObjectiveTo see LegioneUa pneumophila contamination in water systems in public places of Chongqing and provide evidences for hygienic supervision and management, nethodsAccording to related national regulations, a total of 399 water samples including cooling water, condensate water, chilled water, thermal water, shower water, swimming pool water and drinking water were collected from public places, and Legionella pneumophila and its serotypes were tested. ResultsLegionella pneumophila in water samples was detected from 44 （ 11.0% ） samples. Positive rates of Legionella pneumophila in air - conditioning system water were gradually decreased （29.0%/15.6%/9.0% ）, and the differences were statistically significant （χ2 = 8.53, P 〈 0. 05 ）. The positive rate of Legionella pneumophila in air - conditioning system water was higher than that in life water （ 13.9%/7. 1% ）, and the difference was statistically significant （χ2 = 4. 608, P 〈 0.05 ） . 44 strains of Legionella pneumophila were detected, including 32 （72. 7% ） LP1 strains and 12 （27.3%） LP2 - 14 strains. ConclusionLegionella pneumophila contamination exists in water systems of public places in the city. Cleaning and disinfection of public water systems should be enhanced, and supervision should be tightened.
出处
《预防医学情报杂志》
CAS
2017年第6期541-543,共3页
Journal of Preventive Medicine Information
关键词
公共场所
水系统
嗜肺军团菌
public places
water system
LegioneUa pneumophila
