摘要
目的 了解影响水质碘含量的因素并评价深圳市水中碘含量。方法 水碘采用全自动间歇流动分析法测定。结果 深圳市水源水中碘含量随距海岸垂直距离的增加而降低 ,距 5 0km外 5km内降低 80 1% ,混凝沉淀及曝气可减少水碘 35 %以上 (P均 <0 0 1) ,加氯及加亚铁、煮沸及日晒则未显差异 (P均 >0 0 5 )。结论 深圳市区水碘含量丰富 ,近郊水碘含量 16 μg/L ,远郊属贫碘水 ;水源碘在制备中丢失明显 ;
Objective To understand the factors that can affect the iodine amount of the water quality and the evaluation of the iodine amount of the water in Shenzhen city.Methods The water iodine was tested with segmenled flow analysis.Results The amount of water iodine in the water resource of Shenzhen declined with the increase of the vertical distance from the coast,which was 80.1% lower within 5?km than that beyond 50?km,the coagulation and sedimentation and the airing could lessen the amount of water iodine by more than 35%(P ar<0.01),but the factors such as adding of chlorine and ferrous,boiling and solarization could not cause significant difference(P ar<0.05).Conclusion The amount of water iodine in Shenzhen city and its districts was rich,that was almost 16?μg/L in the suburb,but was poor in the far suburban area.The iodine in the water resource lost apparently during its producing,but that in tap water was stable.
出处
《中国公共卫生》
CAS
CSCD
北大核心
2004年第6期700-701,共2页
Chinese Journal of Public Health
基金
深圳市卫生科技项目 (2 0 0 2 0 4 1 2 7)
关键词
水碘
影响因素
全自动分析
water iodine
effective factor
fully automatic analysis
