Analysis of fluoride content in brick tea from tea-drinking endemic fluorosis areas in Sichuan Province in 2022
Objective To master the current status of fluoride content in brick tea from tea-drinking endemic fluorosis areas in Sichuan Province,and to provide scientific basis for the prevention and control of tea-drinking endemic fluorosis in Sichuan Province.Methods In 2022,a stratified sampling survey was conducted to measure the fluoride content of brick tea samples collected from some brick tea production enterprises,wholesale and retail stores in Sichuan Province.Systematic sampling was used to investigate the drinking situation of household brick tea among the permanent residents in 30 tea-drinking fluoride disease districts and counties.SPSS 20.0 software was used for statistical analysis of the data,and the count data were expressed as percentages.Results The fluoride content of brick tea produced by brick tea enterprises in Sichuan Province ranged from 121.40 to 276.80 mg/kg,with an average of 211.91 mg/kg.The fluoride content of brick tea in major wholesale/retail stores in tea-drinking endemic fluorosis districts/counties/cities and Pidu District of Chengdu City ranged from 100.60 to 1 113.40 mg/kg,with an average of 413.31 mg/kg.The proportion of households drinking brick tea in tea-drinking endemic fluorosis areas was 96.98％.The fluoride content in brick tea ranged from 80.9 to 1 714.7 mg/kg,with an average of 586.26 mg/kg and a pass rate of 18.82％.The annual per capita consumption of brick tea by the permanent population was 1 002.36 g,and the daily per capita fluoride intake of brick tea by the permanent population was 2.37 mg.Conclusions The drinking rate of brick tea was high and the fluoride content in brick tea was also high in tea-drinking endemic fluorosis areas of Sichuan Province.
prevalence surveytea-drinking endemic fluorosisfluorine content in brick tea
NETL
NSTL
万方数据
