Assessing Pb-Cr Pollution Thresholds for Ecological Risk and Potential Health Risk in Selected Several Kinds of Rice
文献类型： 外文期刊
作者： Cao, Mengzhuo 1 ; Zhu, Weijing 1 ; Hong, Leidong 1 ; Wang, Weiping 1 ; Yao, Yanlai 1 ; Zhu, Fengxiang 1 ; Hong, Chunlai 1 ; He, Shanying 4 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Environm Resources Soil & Fertilizer, Hangzhou 310021, Peoples R China
2.Shanghai Huadi Environm Technol Co Ltd, Shanghai 201803, Peoples R China
3.Huahuan Testing Technol Co Ltd, Shanghai 201803, Peoples R China
4.Zhejiang Gongshang Univ, Sch Environm Sci & Engn, Hangzhou 310012, Peoples R China
关键词： soil; rice species; heavy metals; ecological risk; health risk; thresholds
期刊名称：TOXICS （ 影响因子：4.472； 五年影响因子：5.144 ）
ISSN：
年卷期： 2022 年 10 卷 11 期
页码：
收录情况： SCI
摘要： The expected typical gley moist paddy soil was collected in Zhejiang Province, China, and conventional (XS 134 and JH 218) and varieties of hybrid (YY 538 and CY 84) rices were used for a pot experiment. The effects of exogenous heavy metals lead (Pb) and chromium (Cr) on rice growth and the accumulation of heavy metals in the grains were studied. The results show that heavy metal concentrations in soil and rice grains have significant correlations, and Pb and Cr significantly (p < 0.05) inhibited the rice growth (plant height and panicle weight). The potential ecological hazard index (RI) of heavy metals in the soil was 4.88-6.76, which belongs to the grade of "slight ecological hazard", and Pb provides a larger potential ecological hazard than Cr in the studied region. The thresholds for potential health risks and ecological risks for Pb and Cr were lower than the "Control Standards for Soil Pollution Risk of Agricultural Land (Trial)" (GB15618-2018, China). This work provides the basis for soil pollution control for Pb and Cr and the selection of rice cultivars from Pb and Cr accumulated soils.
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