{"title":"pH 值对土壤系统中磺胺甲噁唑的影响:迁移和降解","authors":"Haifang Wang, Xin Li, Zhumei Sun, Xia Cao, Junli Zhang, Qihua Chen, Rui Ma","doi":"10.1007/s11270-024-07530-6","DOIUrl":null,"url":null,"abstract":"<div><p>Owing to their widespread use, sulfonamide antibiotics (SAs), an important class of emerging pollutants, have caused significant ecological disruption. Both acid deposition and salinization of soil may have an impact on migration and degradation of antibiotics. Sulfamethoxazole (SMX), has a migration and transformation process in the environment that is closely dependent on environmental pH. Nevertheless, scarcely any studies have been conducted on the effect of soil pH changes on the environmental behavior of sulfamethoxazole. To investigate the impact of different pH levels on the migratory mechanisms and degradation pathways of SMX within soil systems, indoor soil column leaching experiments were conducted. Ultra-high-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF–MS) were used to analyse the dynamic changes in the content of SMX as well as to identify its degradation products. The results showed that acidic conditions constrained the vertical migration of antibiotics in the soil. These transformations ensued through a sequence of reaction processes, encompassing ring opening, hydroxylation, S-C bond breaking, and the oxidation of aniline groups. The study of the migration and transformation of sulfamethoxazole under different pH conditions can lay a solid theoretical foundation for the assessment of the pollution risk of sulfamethazine degradation products under acid rain and salt and alkali conditions, so as to better prevent and protect underground water resources.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"235 12","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Influence of pH on Sulfamethoxazole in Soil Systems: Migration and Degradation\",\"authors\":\"Haifang Wang, Xin Li, Zhumei Sun, Xia Cao, Junli Zhang, Qihua Chen, Rui Ma\",\"doi\":\"10.1007/s11270-024-07530-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Owing to their widespread use, sulfonamide antibiotics (SAs), an important class of emerging pollutants, have caused significant ecological disruption. Both acid deposition and salinization of soil may have an impact on migration and degradation of antibiotics. Sulfamethoxazole (SMX), has a migration and transformation process in the environment that is closely dependent on environmental pH. Nevertheless, scarcely any studies have been conducted on the effect of soil pH changes on the environmental behavior of sulfamethoxazole. To investigate the impact of different pH levels on the migratory mechanisms and degradation pathways of SMX within soil systems, indoor soil column leaching experiments were conducted. Ultra-high-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF–MS) were used to analyse the dynamic changes in the content of SMX as well as to identify its degradation products. The results showed that acidic conditions constrained the vertical migration of antibiotics in the soil. These transformations ensued through a sequence of reaction processes, encompassing ring opening, hydroxylation, S-C bond breaking, and the oxidation of aniline groups. The study of the migration and transformation of sulfamethoxazole under different pH conditions can lay a solid theoretical foundation for the assessment of the pollution risk of sulfamethazine degradation products under acid rain and salt and alkali conditions, so as to better prevent and protect underground water resources.</p></div>\",\"PeriodicalId\":808,\"journal\":{\"name\":\"Water, Air, & Soil Pollution\",\"volume\":\"235 12\",\"pages\":\"\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-10-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Water, Air, & Soil Pollution\",\"FirstCategoryId\":\"6\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11270-024-07530-6\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water, Air, & Soil Pollution","FirstCategoryId":"6","ListUrlMain":"https://link.springer.com/article/10.1007/s11270-024-07530-6","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
The Influence of pH on Sulfamethoxazole in Soil Systems: Migration and Degradation
Owing to their widespread use, sulfonamide antibiotics (SAs), an important class of emerging pollutants, have caused significant ecological disruption. Both acid deposition and salinization of soil may have an impact on migration and degradation of antibiotics. Sulfamethoxazole (SMX), has a migration and transformation process in the environment that is closely dependent on environmental pH. Nevertheless, scarcely any studies have been conducted on the effect of soil pH changes on the environmental behavior of sulfamethoxazole. To investigate the impact of different pH levels on the migratory mechanisms and degradation pathways of SMX within soil systems, indoor soil column leaching experiments were conducted. Ultra-high-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF–MS) were used to analyse the dynamic changes in the content of SMX as well as to identify its degradation products. The results showed that acidic conditions constrained the vertical migration of antibiotics in the soil. These transformations ensued through a sequence of reaction processes, encompassing ring opening, hydroxylation, S-C bond breaking, and the oxidation of aniline groups. The study of the migration and transformation of sulfamethoxazole under different pH conditions can lay a solid theoretical foundation for the assessment of the pollution risk of sulfamethazine degradation products under acid rain and salt and alkali conditions, so as to better prevent and protect underground water resources.
期刊介绍:
Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments.
Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation.
Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.