环境化学
四环素
羟基化
去甲基化
污染
降级(电信)
化学
四环素类抗生素
污染物
抗生素
生物
有机化学
DNA甲基化
计算机科学
生物化学
生态学
电信
基因表达
基因
酶
作者
Xiaotong Zhang,Dengpan Wang,Shudong Zhang,Jinju Hou,Cheng Liu,Wenjie Chen,Qiuzhuo Zhang
标识
DOI:10.1016/j.jhazmat.2023.132862
摘要
While the occurrence and removal technologies of tetracyclines in the environment have been reported, a comprehensive systematic summary and analysis remain limited, especially for new generations compounds such as doxycycline. In this review, the latest information regarding the distribution of various tetracyclines in different countries over the past seven years (2017–2023) reveals a notable absence of research reports in North America and Oceania. With China as the representative country, the investigation indicates that the maximum concentrations of TCs exceed 5 µg/L. The maximum concentration of tetracyclines in feces (26.22 µg/L) can reach one order of magnitude higher than that in other media. Furthermore, advanced oxidation technologies, such as Fenton processes, electrochemical oxidation, photolysis, ozonation, etc., were also examined, and the median degradation rate achieved 91.9% to 97.67%. Reactions such as methylation, demethylation, hydroxylation, dehydration, ring cleavage, and oxidation were observed during degradation. The most common intermediate product was identified as m/z = 461 (C22H25N2O9). This review indicates that future efforts should emphasize understanding the occurrence and fate of new-generation tetracyclines in the environment.
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