【摘要】 作为中国对外开放的"南大门",珠三角地区在经济快速发展的同时也出现了一系列的环境污染问题,尤其是土壤镉砷污染情况越来越严重。笔者针对珠三角地区镉砷污染物的来源和污染现状,分析镉砷重金属在水稻体内的赋存形态以及迁移转化规律,对镉砷对人体健康危害的影响进行阐述,研究土壤性状、动物、微生物、植物等与镉砷之间的相互影响,并试图找出珠三角地区植物对镉砷的抵抗机制。综合前人的治理经验与措施,来提出自己的展望,以期为珠三角大米镉砷污染状况进行较为透彻的阐述,并且为以后的治理措施提出部分建议参考。更多还原

【Abstract】 The Pearl River Delta is the"south gate"of China’s opening to the outside world. Along with the rapid development of economy, a series of environmental pollution problems have appeared, especially the pollution of cadmium and arsenic in soil. In this paper, the source and pollution status of cadmium and arsenic pollutants in the Pearl River Delta were discussed, and the occurrence and transformation of cadmium and arsenic in rice were analyzed. We expound the effects of cadmium and arsenic on human health. The interaction between soil propertiews, animals, microorganisms, plants and cadmium or arsenic was also explored, aiming to find out the resistance mechanism of plants to cadmium and arsenic in the Pearl River Delta. We summarized the previous management experience on the ollution, hoping that the pollution could be explained thoroughly, and putting forward some countermeasures on the pollution control.更多还原