中国农业科技导报2017，Vol.19Issue(9)：77-86,10.DOI:10.13304/j.nykjdb.2016.680
滇南矿区稻米重金属累积的品种差异及其健康风险分析
Analysis on Varieties Difference and Health Risk of Heavy Metal Accumulation in Rice in Southern Yunnan Mining Area
摘要
Abstract
In order to solve the safety and quality problems of rice produced in mining area,and to obtain suitable rice varieties with low heavy metal accumulation for this area,this paper designed cultivation experiment at 3 different spots for 15 major local rice varieties recently planted in southern Yunnan mining area for 2 succesive years;and analyzed heavy heavy metal accumulation characteristics and its health risk in different rice varieties planted in this area.The resuhs showed that there were big differences in absorption and accumulation of As,Pb and Cd in 15 rice tested varieties.In brown rice,Yixiang 107 had higher Pb content,and Diantun 502 had the lowest Pb content.The different range between these 2 was 0.188 mg/kg.Hongyou 4 was the variety with the highest Cd content.While,Yunhui 290 was the one with the lowest Cd content.Their range difference was 0.383 mg/kg.Yixiang 99E-4 had the highest As content,and Fengyouxiangzhan had the lowest As content.Their range difference was 0.189 mg/kg.Taking the national food safety standards (GB 2762-2012) pollutants Pb,Cd,inorganic arsenic limit values (≤0.2 mg/kg) and health risk assessment risk entropy (HQ＜1) as the evaluation criteria,this study screened out the following cultivars with low heavy metal accumulation suitable for planting in heavy metal polluted soil of this area:Diantun 502,Yiyou 2815,Yunhui 290 and Fengyouxiangzhan.Plantation of these 4 cultivars + soil remediation + agronomic regulation would more effectively reduce the larm of heavy metals to population taking rice as daily food.关键词
滇南矿区/水稻/重金属/品种差异/健康风险Key words
mining area in southern Yunnan/rice/heavy metals/varieties difference/health risk分类
农业科技引用本文复制引用
邹艳虹,刘贤金,黎其万,邓晓霞,张文波,陈璐,米艳华..滇南矿区稻米重金属累积的品种差异及其健康风险分析[J].中国农业科技导报,2017,19(9):77-86,10.基金项目
农业部公益性行业(农业)专项(201303088) （农业）
云南省创新人才培养计划项目(2014HB059、2015HC025) （2014HB059、2015HC025）
江苏省食品质量安全重点实验室开放项目(201609)资助. （201609）
