2023年3月7日，欧盟食品安全局（EFSA）发布消息称，拟修订四聚乙醛（metaldehyde）在花科类芸苔属和多叶芸苔属作物中的最大残留限量。
根据欧盟条例（EC）No 396/2005第6章的规定，Glanzit Pfeiffer Gmbh & Co. KG提交了该修订申请。经过评估，欧盟食品安全局得出结论，根据所报道的农业实践，短期和长期摄入因使用四聚乙醛而产生的残留物不太可能对消费者健康构成风险，但长期消费者风险评估应仅被视为指示性的。部分原文报道如下：
In accordance with Article 6 of Regulation (EC) No 396/2005, the applicant Glanzit Pfeiffer Gmbh & Co. KG submitted a request to the competent national authority in Germany to modify the existing maximum residue levels (MRLs) for the active substance metaldehyde in flowering brassica and leafy brassica. The data submitted in support of the request were found to be sufficient to derive MRL proposals for both brassica crop groups. Adequate analytical methods for enforcement are available to control the residues of metaldehyde on the commodities under consideration at the validated limit of quantification (LOQ) of 0.05 mg/kg. based on the risk assessment results, EFSA concluded that the short-term and long-term intake of residues resulting from the intended uses of metaldehyde according to the reported agricultural practices is unlikely to present a risk to consumer health. The long-term consumer risk assessment shall be regarded as indicative only due to the data gaps identified for certain existing MRLs in the framework of the MRL review of metaldehyde according to Article 12 of Regulation (EC) No 396/2005.
