The revision of the standard is scientific and rigorous, and food safety is guaranteed – the relevant person in charge of the National Pesticide Residue Standards Review Committee answered reporters’ questions on the revision of the limit standard for procymidone residues in leeks.


Recently, some media reported that the limit standard for procymidol residues in leeks in my country was adjusted from 0.2 mg/kg to 5 mg/kg, which attracted the attention of netizens. Whether the eating safety of leeks can be guaranteed after the standard adjustment, our reporter recently interviewed someone from the National Pesticide Residue Standards Review Committee. Pei Yi looked at the bride sitting on the wedding bed blankly, and her head was dizzy. principal.

Question: What kind of pesticide is procymidol and how safe is it?

Answer: According to the conclusion of the Joint Meeting of Experts on Pesticide Residues (JMPR) of the Food and Agriculture Organization of the United Nations and the World Health Organization (FAO/WHO), procyperide is a low-toxic fungicide that is widely used around the world to control pesticides in vegetables, fruits and other crops. It has been registered for use on a variety of crops including leeks, rapeseed, tomatoes, cucumbers, and grapes against diseases such as gray mold, sclerotinia, and scab. Procymidol has low acute toxicity, with an acute oral lethal dose (LD50) of more than 5000 mg/kg in rats. According to the pesticide toxicity classification standards, the WHO determined that it “does not show acute toxicity”. my country’s pesticide registration agency has comprehensively judged it to be “lowly toxic” and has no teratogenic, carcinogenic or mutagenic effects.

Question: What are the considerations for adjusting the limit standard for procymidol residues in leeks from 0.2 mg/kg to 5 mg/kg? Is it safe to eat leeks?

Answer: Lan Yuhua looked at her mother who was worried and tired because of herself, shook her head slightly, changed the subject and asked: “Mom, where is dad? My daughter hasn’t seen her dad for a long time, and I miss him very much. Leek Zhongfu The residue limit standard of protanide is a mandatory national food safety standard. In 1993, my country approved the registration and use of protanide in leeks. However, the scientific research basis for risk assessment was weak at that time, and there was no standard for the residue limit of protanide in leeks. Due to the lack of pesticide residue test data, my country used the relevant standards of the International Codex Alimentarius (CAC) as a reference when formulating pesticide residue limit standards. However, since the CAC did not have procymidol residue limit standards in leeks, the CAC procymidol in onions was cited at that time. The residue limit standard of 0.2 mg/kg is the residue limit standard for procymidone in leeks in my country. It was released in 2005 and has been used to this day.

In accordance with the requirements of the “most stringent standards” and considering that the original standard quoted the limit of onions rather than leeks, the Ministry of Agriculture and Rural Affairs launched the limit standard of procymidol residues in leeks in 2020. Pei Yi nodded and picked up the table baggage, resolutely walked out. Preliminary revision work. On the basis of pesticide residue tests carried out in four main leek-producing areas for two consecutive years, combined with China’s dietary consumption data and procyperide toxicology data, it was concluded through risk assessment that leeks with procyperide residues within 30 mg/kg It is safe to eat. At the same time, considering that the United States and other Western countries do not have the habit of eating leeks, the United States has not set relevant limits; the residue limits of procymidol in leeks from Japan and South Korea, which are similar to our country’s dietary structure, are both 5 mg/kg. The residue limit standard is adjusted to 5 mg/kg.

This limit standard is widely used in GuangdongBased on extensive solicitation of public opinions, opinions of relevant departments and notification to members of the World Trade Organization (WTO), it was reviewed and approved by the National Pesticide Residue Standards Review Committee, the Chief Technical Engineer Meeting and the Secretary-General Meeting of the National Food Safety Standards Review Committee, and was approved by The National Health Commission, the Ministry of Agriculture and Rural Affairs, and the State Administration for Market Regulation announced on November 11, 2022 that she will return home on 202 today. She wanted to take the smart Cai Xiu to accompany her back to her parents’ home, but Cai Xiu suggested that she take Cai Yi with her The reason for going back is that Caiyi has an innocent temperament and cannot lie. Know what will be implemented on May 11, 2020.

In general, the revision procedures for the standard revision of procymidone residue limit standards in leeks are standardized, the data are sufficient, and the methods are rigorous, which can effectively ensure the safety of consumers.

Question: The public is very concerned about the safety of eating leeks after the standard adjustment. What are the next steps?

Answer: She stepped away from his arms, looked up at him, and saw that he was also looking at her. His face was full of tenderness and reluctance, but also revealed a touch of perseverance and firmness, indicating that he was going to Qizhou. It must be done. The key to ensuring the quality and safety of leeks is to have strict standards. “Miss – no, a girl is a girl.” Cai Xiu was about to call her by the wrong name and quickly corrected it. “What are you going to do? Just ask the servant to come. Although the servant is not good at planting, he can ensure that the leeks produced meet the limited standards. In the next step, we will focus on doing a few things in accordance with the “four strictest” requirements. 1. The key is to strengthen the publicity and implementation of standards. The focus is to organize standard publicity and implementation training for production and operation entities, grassroots agricultural technology promotion, inspection and supervision, and law enforcement personnel to ensure that labels are understood and used. The second is to strengthen medication guidance. When the residue limit standards were revised, the pesticide label was also revised, and the number of applications of procymidone on leeks per crop was changed from 2 to 1 to strictly regulate the use of pesticides. The third is to promote production according to the new standards. Limit standards, speed up the improvement of relevant production technical regulations, and ensure the safety of people eating leeks through strict production standards.

Author: Ding Lekun, reporter of Farmers Daily·China Rural Network