中华航空航天医学杂志
中華航空航天醫學雜誌
중화항공항천의학잡지
CHINESE JOURNAL OF AEROSPACE MEDICINE
2013年
2期
123-126
,共4页
水%氯%氢离子浓度%肠杆菌科%数据收集
水%氯%氫離子濃度%腸桿菌科%數據收集
수%록%경리자농도%장간균과%수거수집
Water%Chlorine%Hydrogen Ion concentration%Enterobacteriaceae%Health service%Data collection
目的 调查广州南航水站飞机二次供水卫生状况,为确保机组和旅客用水卫生安全提供依据. 方法 采集2004 2010年广州南航水站二次供水的水样,对水样游离性余氯、pH值、微生物指标、感观性状指标和化学指标进行综合评价. 结果 水站二次供水超标项目主要为游离性余氯、pH值和大肠菌群,其余指标均合格.2004年游离性余氯合格率仅为38.5％(以0.05 mg/L为标准),低于2005 2010年合格率(x2=15.230～24.390,P＜0.01);2004 2010年pH值合格率呈下降趋势(x2＝47.619,P＜0.01),其中2009-2010年低于2004-2006年(x2=8.859～24.417,P＜0.01)；2004年大肠菌群合格率仅为84.6％,2004-2010年大肠菌群合格率差异有统计学意义(x2 =8.272,P＜0.05).水站末梢水和水车中转水pH值合格率低于飞机末梢水(x2＝12.857、10.418,P＜0.01). 结论 ①广州南航水站总体上符合飞机二次供水的卫生要求,具备供水资质.②二次供水过程中存在卫生隐患:水质游离性余氯偏低,导致其受微生物重复污染的风险大大增加；水质偏酸性,对飞机供水系统腐蚀作用和对消毒负性作用不容忽视；大肠菌群污染问题应引起重视.
目的 調查廣州南航水站飛機二次供水衛生狀況,為確保機組和旅客用水衛生安全提供依據. 方法 採集2004 2010年廣州南航水站二次供水的水樣,對水樣遊離性餘氯、pH值、微生物指標、感觀性狀指標和化學指標進行綜閤評價. 結果 水站二次供水超標項目主要為遊離性餘氯、pH值和大腸菌群,其餘指標均閤格.2004年遊離性餘氯閤格率僅為38.5％(以0.05 mg/L為標準),低于2005 2010年閤格率(x2=15.230～24.390,P＜0.01);2004 2010年pH值閤格率呈下降趨勢(x2＝47.619,P＜0.01),其中2009-2010年低于2004-2006年(x2=8.859～24.417,P＜0.01)；2004年大腸菌群閤格率僅為84.6％,2004-2010年大腸菌群閤格率差異有統計學意義(x2 =8.272,P＜0.05).水站末梢水和水車中轉水pH值閤格率低于飛機末梢水(x2＝12.857、10.418,P＜0.01). 結論 ①廣州南航水站總體上符閤飛機二次供水的衛生要求,具備供水資質.②二次供水過程中存在衛生隱患:水質遊離性餘氯偏低,導緻其受微生物重複汙染的風險大大增加；水質偏痠性,對飛機供水繫統腐蝕作用和對消毒負性作用不容忽視；大腸菌群汙染問題應引起重視.
목적 조사엄주남항수참비궤이차공수위생상황,위학보궤조화여객용수위생안전제공의거. 방법 채집2004 2010년엄주남항수참이차공수적수양,대수양유리성여록、pH치、미생물지표、감관성상지표화화학지표진행종합평개. 결과 수참이차공수초표항목주요위유리성여록、pH치화대장균군,기여지표균합격.2004년유리성여록합격솔부위38.5％(이0.05 mg/L위표준),저우2005 2010년합격솔(x2=15.230～24.390,P＜0.01);2004 2010년pH치합격솔정하강추세(x2＝47.619,P＜0.01),기중2009-2010년저우2004-2006년(x2=8.859～24.417,P＜0.01)；2004년대장균군합격솔부위84.6％,2004-2010년대장균군합격솔차이유통계학의의(x2 =8.272,P＜0.05).수참말소수화수차중전수pH치합격솔저우비궤말소수(x2＝12.857、10.418,P＜0.01). 결론 ①엄주남항수참총체상부합비궤이차공수적위생요구,구비공수자질.②이차공수과정중존재위생은환:수질유리성여록편저,도치기수미생물중복오염적풍험대대증가；수질편산성,대비궤공수계통부식작용화대소독부성작용불용홀시；대장균군오염문제응인기중시.
Objective To investigate the state of secondary water supply to the airplanes of China Southern Airlines in Guangzhou and to provide the reference of evaluating water sanitary for aircrew and passengers.Methods Water samples of secondary water supply at Guangzhou station of China Southern Airlines were collected and the free residual chlorine,pH value,microbial index,sensory property index and chemical index of water samples were tested and comprehensively evaluated.Results The indexes of samples fitted to the standard except the free residual chlorine,pH value and coliforms.The up-to-standard rate of residual chlorine in the samples of 2004 was only 38％ (took≥0.05 mg/L as the standard),which was lower than that from 2005 to 2010(x2 =15.230-24.390,P＜0.01).The up-to-standard rate of pH value showed declined tendency from 2004 to 2010 (x2=47.619,P＜0.01).The up-to-standard rate of pH value from 2009 to 2010 was lower than that from 2004 to 2006 (x2 =8.859-24.417,P＜0.01).The up-to-standard rate of coliform count was only 84.6 ％ in 2004.It was significantly different among the coliform counts from 2004 to 2010 (x2 =8.272,P＜0.05).The up-to-standard rates of pH value in station tap water and in waterwheel water were lower than the tap water of aircraft (x2 =12.857,10.418,P＜ 0.01).Conclusions ①The general condition of secondary water supply at Guangzhou water station of China Southern Airlines fits to sanitary standard and enables the water supply certificate.②There are still potential hygiene problems in secondary water supply,such as residual chlorine level on the low side that may lead to the risk of microbial pollution greatly increased,and the acidity of water that may result in the corrosion of pipeline and negative effects of disinfection.Besides,coliform pollution should be paid more attention on.
