3 kinds of foods are pesticide residues

1. Amaranth, cabbage, and cowpea belong to the “high-risk vegetables”. In Changchun City, a result of a survey of pesticide residues that runs through Northeast China Normal University from 2000 to 2004 shows that leek is the only vegetable that has been on the unqualified list for four years. Li Shidong pointed out that the lowest qualified rate of leeks was mainly related to the vulnerability of their roots to fleas. In addition to leeks, cabbage is also a “high-risk vegetable residue,” and its pesticide residues are mainly caused by “irrigation”. Kidney beans also use a large number of pesticides to control pests, and the application period is generally closer to the harvesting period. This will cause some mature cowpeas to be sold on the market before they are naturally decomposed. Therefore, the pesticide residues are also higher.

2. The detection rate of pesticides in legumes, green leaves and solanaceous vegetables is relatively high, and melons and edible fungi are more reassuring. The laboratory of the Yuhang District Agricultural Products Monitoring Center in Hangzhou lasted for one year. The results of the inspection of 440,000 vegetable samples showed that the variety of vegetables was different and the qualification rate was also different. The pass rate from low to high is in order of legumes (kidney beans, concanavalin), solanaceous fruits (eggplants), green leafy vegetables (celery, oiled wheat dish), potato root vegetables (potatoes), onion garlic (shallots), and melons. (Cucumber, Bitter Gourd), Edible Fungi (Pleurotus ostreatus). The brackets are vegetables that have exceeded the pesticide residue test. Among them, aquatic vegetables, wild vegetables and sprouted vegetables are the most reassuring, and the passing rate is 100%. It is worth noting that because of the differences in the origin of vegetables, this law does not fully apply to all parts of the country.

3. From the month's point of view, the qualified rate of vegetables was the lowest in June and August and the highest in March. The researchers of the Agricultural Products Quality Safety Supervision, Inspection and Test Center of the Ministry of Agriculture found in the survey that the over-standard rate of vegetable pesticide residues in the whole year has risen and then declined with the passage of time. In March, the rate of vegetable pesticide residues exceeded the minimum, which was the highest in June and the second highest in August. In November, it was again significantly reduced. This is almost similar to many other domestic studies. Li Shidong pointed out that the ups and downs of this intuitive curve are also contaminated with many variables, such as changes in climate and serious occurrence of diseases and insect pests in summer.

4. Supermarket vegetables are not necessarily more secure than farmers' markets. From December 2007 to September 2008, a result of the detection of organophosphorus pesticide residues in nearly 40,000 vegetable samples from Changsha showed that the qualified rate of vegetable pesticides from 22 farmers' markets was higher than that of 26 supermarkets. high. The research group speculated that the vegetables in supermarkets mainly come from fixed-point vegetable production bases, pay attention to the appearance quality of vegetables, and the application amount of pesticides may be higher than that of small-scale self-produced vegetables in farms.

Finally, it should be noted that although a large number of vegetables have been detected with pesticide residues exceeding the standard, a comprehensive number of relevant test data shows that the average pass rate of pesticides in vegetables in the country is above 90%, such as the above mentioned for 440,000 vegetables. The test pass rate is 99.91%. After correct handling, everyone can eat vegetables safely.