摘要
目的分析2019年内蒙古地区饮用水中溶解性总固体(TDS)卫生监测结果及其影响因素。方法针对2019年内蒙古自治区12个盟市及103个旗县区生活饮用水中TDS监测结果,对比分析不同水期(枯水期、丰水期)、供水类型(农村、城镇)、水源类型(地表水、地下水)、水样类型(出厂水、末梢水)、是否消毒,以及不同处理方式(常规处理、仅消毒、仅过滤沉淀、未处理)对TDS监测结果的影响。结果 2019年监测水样7 169份,TDS总体合格率为98.24%(7 043/7 169)。枯水期与丰水期TDS差异无统计学意义(Z=1.260,P>0.05);农村水TDS高于城市水(Z=-6.848,P<0.01);地表水TDS含量高于地下水(Z=4.001,P<0.01);出厂水与末梢水之间TDS存在统计学差异(H=6.434,P<0.05);不同处理方式(常规处理、仅消毒、仅过滤沉淀、未处理)之间TDS值存在差异(Z=141.404,P<0.01);未消毒水中TDS高于经消毒处理水样(Z=8.163,P<0.01);氯化物、硫酸盐、总硬度均与溶解性总固体呈现出一定的正向关联性(P<0.01)。结论内蒙古地区TDS总体值尚可。TDS受地域差异性、供水类型(农村、城镇)、水源类型(地表水、地下水)、水样类型(出厂水、末梢水),以及不同处理方式影响,且与氯化物、硫酸盐及总硬度之间具有关联性。
Objective To analyze the monitoring results of total dissolved solids(TDS)in drinking water in Inner Mongolia Autonomous Region,China,2019.Methods Based on the monitoring result of TDS in drinking water in 12 cities and 103 counties or districts in Inner Mongolia,2019,we analyzed the influence on TDS of water periods(dry season or wet season),water supply regions(rural or urban region),water source types(surface water or groundwater),water sample types(finished water,terminal water),being disinfected or not,and treatment method(conventional treatment,only disinfection,only filtration and sedimentation,or being untreated).Results In 2019,7169 water samples were monitored,and the overall pass rate of TDS was 98.24%(7043/7169).There was no significant difference in TDS between dry and wet seasons(Z=1.260,P>0.05).TDS was significantly higher in rural water than in urban water(Z=-6.848,P<0.01),and in surface water than in groundwater(Z=4.001,P<0.01).TDS showed significant differences between finished water and terminal water(H=6.434,P<0.05)and between different treatment methods(Z=141.404,P<0.01).TDS in non-disinfected water was significantly higher than that in disinfected water(Z=8.163,P<0.01).Chloride,sulfate,and total hardness were positively correlated with TDS(P<0.01).Conclusion TDS in Inner Mongolia is generally acceptable.TDS can be affected by water supply regions,water source types,water sample types,and treatment methods.It is correlated with chloride,sulfate,and total hardness.
作者
杨苒
范耀春
秦钰涵
李丽
李婧
张晨光
张秀红
张向楠
志强
高昇
YANG Ran;FAN Yaochun;QIN Yuhan;LI Li;LI Jing;ZHANG Chenguang;ZHANG Xiuhong;ZHANG Xiangnan;ZHI Qiang;GAO Sheng
出处
《环境卫生学杂志》
2020年第5期460-465,共6页
JOURNAL OF ENVIRONMENTAL HYGIENE
基金
内蒙古自然科学基金(2019MS03027)
内蒙古自然科学基金(2018MS03027)
内蒙古自治区卫生计生科研计划项目(201703077)。
关键词
饮用水
溶解性总固体
影响因素
drinking water
total dissolved solids
influencing factor
