The Elimination Effect Of Chlorpyrifos And Cyhalothrin By Home Processing Method And The Safety Assessment

In this paper, we studied the elimination effect of the different family processing method for the Chlorpyrifos and Cyhalothrin which residued in vegetables, fruit and grain, and related two kind of pesticides the resolutions dynamic and the different local people's meals structure, has carried on the secure comparison to two kind of pesticides. To make a direction for people to get a safety home processing method. and with the result of this test to indicate which is the mostly origin of the pesticide residue in the daily life.1. To determines two kind of agricultural chemicals in vegetables residual levels, and appraisal different whashing method and blanching in the system processing process the elimination effect: The result that: only to washing with the water is very poorly elimination effect for two pesticides, for Chlorpyrifos is 19.09％and Cyhalothrin is 9.66％; The elimination effect for Soaks 10min with the clear water to chlorpyrifos to reach as high as 70％, to cyhalothrin only about 20％, the extension immersion time can not enhance the elimination effect; The elimination rate with The boiling water soaks imin to chlorpyrifos to reach above 50％, also can achieve 20％to the cyhalothrin; The elimination effects for Three detergent are not ideal. This test result indicated that, stir-fry is the most effective elimination way, The elimination rate for chlorpyrifos and cyhalothrin all above 50％.2. To determines the residual levels for two kind of pesticide in fruit, and compared the elimination effect with the different whashing method; The result that: only to washing with the water is very poorly elimination effect for two pesticides; but dip in the clear water for some minutes can increase the elimination effect; The elimination effects for Three detergent are very good. This test result indicated that, to raze out the pericarp is the best method to reduse the pesticide residue.3. To determines the residual levels for two kind of pesticide in rice, and compared the elimination effect with the different method; The result that: It is difficult to eliminate Cyhalothrin in rice;to pan the rice one time is very poorly elimination effect for two pesticides, and for there times the effect for the Chlorpyrifos and Cyhalothrin is only 67.9％and 62.9; but cook have the best elimination effect for two pesticide, there is all over 96％, and the elimination effect for Cyhalothrin is 98％.4. To contact with two pesticides which under good agricultural standardization operation degeneration tendency, as well as the people through the relation daily to the vegetables, fruit and foodstuff amount of radiation, calculates the pesticide finally possibly enters the human body. the result is:under the GLP, with the home processing method, two pesticide is all safety for people. and the Cyhalothrin is more safe;in the meal structure, the quantity for everyday people is:foodstuff＞vegetable＞fruit, but after the home processing, the quantity of pesticide residue is: vegetable＞fruit＞foodstuff, for this result, we must to take attention to the pesticide residue for vegetable and fruit.