摘要
饮用水中可溶性氟化物是公众摄入氟的主要途径,其含量水平影响人体健康。分别于2015~2017年的丰水期和枯水期6次随机采集监测了嘉陵江下游52个饮用水样中氟化物含量,并基于地理信息系统平台和健康风险指数法进行了评价。结果表明,该区域饮用水中氟化物浓度平均为0.20~0.25 mg/L。除2015年部分样点外,其余样点的氟浓度均低于国家标准限值。其年际变化为2015年明显高于2016年和2017年(P<0.05);年内变化为枯水期略高于丰水期。研究表明,研究区饮用水中氟化物不会对人体造成威胁,且有逐年降低的趋势,建议当地居民适当增加氟的摄入量,以降低患龋齿的风险。
Soluble fluoride in drinking water is the main way of fluoride intake by the public,and the concentration level affects human health.In this study,the fluoride content in 52 drinking water samples from the lower reaches of the Jialing River was randomly collected and monitored in six times during the wet and dry seasons from 2015 to 2017,respectively.Their health risk indexes were evaluated by geographic information system and health risk index method.The results showed that the average fluoride concentrations in drinking water in this region were 0.20~0.25 mg/L.Except for some samples in 2015,the fluorine concentration in other samples was lower than the national standard limit.The interannual variation in 2015 was significantly higher than that in 2016 and 2017(P < 0.05).The annual variation was slightly higher in dry season than in wet season.This study indicated that the fluoride in drinking water in the study area will not cause hazard to human/and showed a decreasing trend year by year.Therefore,it is suggested that local residents should increase the intake of fluoride appropriately to reduce the risk of dental caries.
作者
汪志宇
马小杰
WANG Zhi-yu;MA Xiao-jie(Beibei Center for Disease Control&Prevention,Chongqing 400700,China;College of Environmental Sciences,Sichuan Agricultural University,Chengdu 611130,China)
出处
《四川环境》
2021年第1期109-116,共8页
Sichuan Environment
基金
重庆市饮用水卫生监测项目(20154708)。
关键词
饮用水
氟化物
健康风险评估
地理信息系统
Drinking water
fluoride
health risk assessment
geographical information system
