Hunan Rice Pesticide Residues And Heavy Metal Exceed The Standard Current Situation And Control Countermeasures

This paper analyzes the current situation of industry of rice of our country and the economic status and the present security situation. And to Hunan province rice pesticides, heavy metal residues were analyzed. After recent years of management,2011, exceed the standard of pesticide residue in rice rate than in2010fell17.5percentage points, paddy rice heavy metal residues exceed the standard rate than in2010increased by13.4percentage points.Through different periods, different regions of rice samples to detect pesticide residues exceed the standard result analysis are as follows:in2010xiang dong in pesticide residue in rice exceed the standard rate is maximum, achieve42.7%. By2011, xiang dong exceed the standard of pesticide residue in rice was reduced to13.3%, while the xiang nan and xiang bei exceed the standard of pesticide residue in rice is relatively serious, reached20%. In2011, xiang bei exceed the standard of pesticide residue in rice most gently, only2.5%. While the detection of pesticide residues in varieties are mainly to the low toxicity of pesticides. Mainly for imidacloprid. Three Triazophos, chlorpyrifos, also have some residual exceed the standard phenomenon.Through different periods, different regions of rice samples to detect heavy metal exceed the standard situation analysis:these three years I save rice residue of heavy metal exceed the standard rate in2010-2011increased from33.9%to47.3%. On five areas of our province paddy rice heavy metal analysis, eastern regions for heavy metal pollution is more serious in the area. The primary data inference, I save grain heavy metal pollution degree as the xiang bei> xiang dong>xiang xi>xiang nan> Xiang zhong. I save grain heavy metal pollution is mainly to cadmium pollution.To me the province rice pesticides, heavy metal pollution situation to understand, my province in rice quality safety still exist many problems, and aimed at these problems, on the basis of the above study, for the rice quality and safety in Hunan province problems,the author from the government supervision and technical question two aspects to propose the suggestions, such as strengthening the legislation, strengthen management, strengthen the sector, improve technology etc..