Review of pollution-control technology for arsenic in rice

Soil arsenic contamination has been more seriously in China，and the proportion of rice with excessive arsenic content is about 1%. Over 60% of residents depend on rice as their staple in China，which has resulted in serious arsenic exposure of rice. Therefore，the study on how to reduce the content of arsenic in rice is very important and meaningful. In this paper，the status quo and damage of rice arsenic contamination was simply introduced，and the migration pathway of arsenic from soil to rice also was analyzed. Moreover，four methods used to reduce content of arsenic in rice including reducing the arsenic bioavailability in soil，inhibiting rice absorption for arsenic，barrier controlling of the foliar fertilizer and agricultural measures were introduced in detail. At last，the research direction of rice arsenic contamination control technology was prospected.