Understanding Environmental Fate: Soil Variability and Rainfall Influence on Triafamone and Ethoxysulfuron Leaching.

IF 2.7 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Bulletin of Environmental Contamination and Toxicology Pub Date : 2024-08-10 DOI:10.1007/s00128-024-03944-4

Pervinder Kaur, Rajandeep Kaur, Harshdeep Kaur, Makhan Singh Bhullar

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Abstract

Considering the environmental impact of triafamone and ethoxysulfuron, it is crucial to investigate their leaching behaviour under different geographical conditions. The present study evaluates the effects of application rate, soil properties and rainfall conditions on leaching of these herbicides and their metabolites. Ethoxysulfuron leached up to 50-60 cm with 82.95 to 89.23% detected in leachates while triafamone leached only to 10-20 cm and was < 0.01 µg mL^-1 in leachates. Highest leachability was observed in loamy sand followed by sandy loam and clay loam soil. M1 metabolite (N-(2-((4,6-dimethoxy-1,3,5-triazin-2-yl) (hydroxy) methyl) -6-fluorophenyl) -1,1-difluoro-N-methyl methane sulfonamide) was majorly present in 0 to 10 cm soil depth. With increase in rainfall, downward mobility of both parent and M1 increased. Amendment of loamy sand soil with farmyard manure reduced the leachability indicating it could mitigate groundwater pollution. However, the effect of different exogenous OM amendments on leaching behaviour of herbicides needs to be evaluated.

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了解环境归宿：土壤变异性和降雨对三唑酮和乙嘧磺隆沥滤的影响。

考虑到三唑酮和乙嘧磺隆对环境的影响，研究它们在不同地理条件下的沥滤行为至关重要。本研究评估了施药量、土壤特性和降雨条件对这些除草剂及其代谢物沥滤的影响。醚苯磺隆的浸出深度为 50-60 厘米，浸出液中检测到的醚苯磺隆含量为 82.95% 至 89.23%，而三唑酮的浸出深度仅为 10-20 厘米，浸出液中检测到的三唑酮含量为-1。壤土的浸出率最高，其次是砂壤土和粘壤土。M1 代谢物（N-（2-（（4,6-二甲氧基-1,3,5-三嗪-2-基）（羟基）甲基）-6-氟苯基）-1,1-二氟-N-甲基甲磺酰胺）主要存在于 0 至 10 厘米深的土壤中。随着降雨量的增加，母体和 M1 的向下流动性增加。用农家肥改良壤质砂土可降低沥滤性，这表明农家肥可减轻地下水污染。不过，还需要评估不同的外源 OM 添加剂对除草剂沥滤行为的影响。

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来源期刊

Bulletin of Environmental Contamination and Toxicology 环境科学-毒理学

CiteScore

5.60

自引率

3.70%

发文量

230

审稿时长

1.7 months

期刊介绍： The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.