近年来,有些地区多次发生居民食用蔬菜农药中毒事件。这是由于菜农将喷施过农药而又没有到失效期的蔬菜上市人吃后就会出现恶心、呕吐、腹泻、腹痛、面色苍白、视力模糊、呼吸困难等急性中毒症状,甚至死亡;如蔬菜上农药残留较少,也会引起慢性中毒。据调查,长期吃农药污染过的蔬菜,虽然当时没有不适症状,但5—10年后,肝细胞逐渐受损、变硬、甚至会产生癌变,还可引起畸胎等。所以,在食用蔬菜前,必须重视清除蔬菜上残留的农药。其主要方法有: In recent years, residents in some areas have repeatedly occurred vegetable pesticide poisoning. This is because the vegetable farmers will be sprayed with pesticides but not to the expiry date of the vegetable market, people will appear nausea, vomiting, diarrhea, abdominal pain, pale, blurred vision, breathing difficulties and other acute poisoning symptoms, and even death; such as vegetables Less pesticide residues, can also cause chronic poisoning. According to the survey, long-term eating pesticide contaminated vegetables, although no symptoms at the time, but 5 to 10 years later, gradually damaged liver cells, harden, and even have cancer, but also can cause teratogenic and so on. Therefore, before eating vegetables, we must pay attention to the removal of pesticide residues on vegetables. The main methods are: