Jiali Ge, Jiehua Li, Xu Han, Bibai Du, Ying Guo, Hongkai Zhu and Lixi Zeng*,
{"title":"Triazine-Derived Ultraviolet Filters and Flame Retardants: A Nationwide Co-Occurrence and Prevalence Study in China","authors":"Jiali Ge, Jiehua Li, Xu Han, Bibai Du, Ying Guo, Hongkai Zhu and Lixi Zeng*, ","doi":"10.1021/acs.estlett.3c00497","DOIUrl":null,"url":null,"abstract":"<p >Triazine-derived ultraviolet filters (TA-UVFs) and flame retardants (TA-FRs) have been increasingly used for industrial needs. However, there remains a gap in knowledge regarding their co-occurrences and prevalence trends in municipal sludge on a large scale. Here, we conducted the first national-scale survey of wastewater-derived TA-UVFs and TA-FRs in the sludge of China. A total of 17 TA-UVFs and 6 TA-FRs were detected in the nationwide sludge samples. Among the 23 target triazine chemicals, 17 were reported for the first time in sludge and 4 were newly identified in the environment. Generally, the TA-FRs showed higher pollutant levels than the TA-UVFs. The total sludge concentrations of the two classes of triazine chemicals ranged from 106 to 2,170 ng/g (median of 994 ng/g). A clear spatial distribution trend of decreasing concentrations of TA-UVFs and TA-FRs was observed from East and Central China toward West China. The total annual influx of TA-UVFs and TA-FRs into the sludge in China was estimated to be 14.6 tons/year, among which 2.34 tons/year was directly released into sludge-amended soils. Our findings presented here highlight the widespread presence of two emerging classes of commonly used triazine chemicals in urban sludge and should be given urgent attention.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"10 10","pages":"909–915"},"PeriodicalIF":8.8000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Science & Technology Letters Environ.","FirstCategoryId":"1","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acs.estlett.3c00497","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
引用次数: 0
Abstract
Triazine-derived ultraviolet filters (TA-UVFs) and flame retardants (TA-FRs) have been increasingly used for industrial needs. However, there remains a gap in knowledge regarding their co-occurrences and prevalence trends in municipal sludge on a large scale. Here, we conducted the first national-scale survey of wastewater-derived TA-UVFs and TA-FRs in the sludge of China. A total of 17 TA-UVFs and 6 TA-FRs were detected in the nationwide sludge samples. Among the 23 target triazine chemicals, 17 were reported for the first time in sludge and 4 were newly identified in the environment. Generally, the TA-FRs showed higher pollutant levels than the TA-UVFs. The total sludge concentrations of the two classes of triazine chemicals ranged from 106 to 2,170 ng/g (median of 994 ng/g). A clear spatial distribution trend of decreasing concentrations of TA-UVFs and TA-FRs was observed from East and Central China toward West China. The total annual influx of TA-UVFs and TA-FRs into the sludge in China was estimated to be 14.6 tons/year, among which 2.34 tons/year was directly released into sludge-amended soils. Our findings presented here highlight the widespread presence of two emerging classes of commonly used triazine chemicals in urban sludge and should be given urgent attention.
期刊介绍:
Environmental Science & Technology Letters serves as an international forum for brief communications on experimental or theoretical results of exceptional timeliness in all aspects of environmental science, both pure and applied. Published as soon as accepted, these communications are summarized in monthly issues. Additionally, the journal features short reviews on emerging topics in environmental science and technology.