PMID- 37505385 OWN - NLM STAT- MEDLINE DCOM- 20230825 LR - 20240327 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 30 IP - 40 DP - 2023 Aug TI - Translocation and dissipation of thiamethoxam applied by root irrigation in tomato plant-soil system. PG - 93285-93294 LID - 10.1007/s11356-023-28817-x [doi] AB - Thiamethoxam (TMX) has been registered for use on a wide range of crops due to its versatile application methods, however, there is limited literature evaluating the residue behaviors of TMX applied through root irrigation. In this study, the uptake and translocation of TMX, its degradation to clothianidin (CLO), and dissipation in the tomato plant-soil system were conducted. TMX applied by root irrigation was transferable within the tomato plant, including stems, leaves, and fruits at different heights. TMX concentrations in the four sections of stems were ordered as C(lower) > C(mid) > C(upper) > C(top), while in the leaves were ordered as C(top) > C(upper) > C(mid) > C(lower). The degradation product CLO was detected in the tomato plant, and concentrations of CLO were even higher than those of TMX in the leaves. The translocation factor (TF) of TMX in the same section generally followed the order of TF(leaf) > TF(stem) > TF(fruit.) Residues of TMX and CLO in tomato on 7 days after application were below maximum residue limits (MRLs) in China and Codex Alimentarius Commission (CAC). This study promotes the evaluation of TMX applied through root irrigation for use in the tomato system from a dietary safety perspective. CI - (c) 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature. FAU - Li, Li AU - Li L AUID- ORCID: 0000-0003-2206-6804 AD - Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taiyuan, 030031, China. sxaulili@sxau.edu.cn. FAU - Liang, Hongwu AU - Liang H AD - Inner Mongolia Key Laboratory of Environmental Pollution Control & Waste Resource Reuse, School of Ecology and Environment, Inner Mongolia University, Hohhot, 010021, China. FAU - Pan, Wei AU - Pan W AD - Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taiyuan, 030031, China. FAU - Yin, Shijie AU - Yin S AD - Shanxi Key Laboratory of Integrated Pest Management in Agriculture, College of Plant Protection, Shanxi Agricultural University, Taiyuan, 030031, China. FAU - Cao, Junli AU - Cao J AD - Shanxi Center for Testing of Functional Agro-Products, Shanxi Agricultural University, Taiyuan, 030031, China. FAU - Li, Jindong AU - Li J AD - Shanxi Center for Testing of Functional Agro-Products, Shanxi Agricultural University, Taiyuan, 030031, China. LA - eng GR - 2022XG19/Shanxi agricultural University high-level talent project (2022XG19)/ PT - Journal Article DEP - 20230728 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 747IC8B487 (Thiamethoxam) RN - 0 (Soil) RN - 2V9906ABKQ (clothianidin) RN - 0 (Neonicotinoids) RN - 0 (Insecticides) SB - IM MH - Thiamethoxam MH - *Solanum lycopersicum MH - Soil/chemistry MH - Neonicotinoids MH - *Insecticides/chemistry OTO - NOTNLM OT - Clothianidin OT - Root irrigation OT - Thiamethoxam OT - Tomato OT - Translocation EDAT- 2023/07/28 13:10 MHDA- 2023/08/25 06:42 CRDT- 2023/07/28 11:11 PHST- 2023/04/12 00:00 [received] PHST- 2023/07/12 00:00 [accepted] PHST- 2023/08/25 06:42 [medline] PHST- 2023/07/28 13:10 [pubmed] PHST- 2023/07/28 11:11 [entrez] AID - 10.1007/s11356-023-28817-x [pii] AID - 10.1007/s11356-023-28817-x [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2023 Aug;30(40):93285-93294. doi: 10.1007/s11356-023-28817-x. Epub 2023 Jul 28.