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国内有关资料表明:随食物、水和空气进入人体的有机氯类农药的百分比分别是93％、6％和1％,可见,通过食物进入人体的农药量最多。 由于蔬菜生长期短,而且病虫害较为严重,因而,在蔬菜种植过程中需要连续多次施药,如西红柿和黄瓜需连续施杀菌剂6～8次。不少蔬菜需要多次采收,采收与施药的时间间隔短,因而采收时蔬菜中的农药残留量往往较高,很容易超过国家规定的标准。医学专家指出,蔬菜中残留的农药在人体内蓄积后会出现肌肉麻木和咳嗽等症状,严重的还可致癌。孕妇食用这种蔬菜危害更大,会影响胎儿的发育,甚至会
Relevant domestic data show that the percentage of organochlorine pesticides that enter the human body with food, water and air is 93%, 6% and 1% respectively. It can be seen that the amount of pesticide that enters the human body through foodstuffs is the largest. Due to the short growth period of vegetables, and pests and diseases are more serious, therefore, in the process of planting vegetables need to be applied continuously for many times, such as tomatoes and cucumbers to be applied fungicides 6 to 8 times. Many vegetables need to be harvested many times, and the time interval between harvesting and application is short. As a result, the amount of pesticide residues in vegetables tends to be higher when harvesting and it is easy to surpass the national standard. Medical experts pointed out that pesticide residues in vegetables accumulate in the human body will appear muscle numbness and cough and other symptoms, but also can cause serious cancer. Pregnant women eating this vegetable more harmful, will affect the development of the fetus, and even will