Arid
DOI10.1007/s11356-018-2773-9
Evaluation of CDOM sources and their links with antibiotics in the rivers dividing China and North Korea using fluorescence spectroscopy
Mu, Guangyi1; Ji, Meichen2; Li, Sijia2
通讯作者Li, Sijia
来源期刊ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
EISSN1614-7499
出版年2018
卷号25期号:27页码:27545-27560
英文摘要

Rivers act as carriers where active cycling of chromophoric dissolved organic matter (CDOM) affected by anthropogenic activities and land cover variation may occur. Little is known about the optical properties of CDOM in relation to antibiotics; these properties could provide valuable insights into CDOM transformation processes and biogeochemical reactivity. The spatial distribution of CDOM absorption, fluorescence intensities of CDOM components, and correlations between fluorescence indices (FI (370), humification index (HIX)) and biological index (BIX)) with water quality and antibiotics were investigated in three rivers, namely, two rivers (Yalu River and Tumen River) dividing China and North Korea, and the Songhua River. Four humic-like components (C1 and C3-5), and one tryptophan-like component (C2), were identified via fluorescence excitation-emission matrices-parallel factor analysis (EEM-PARAFAC). The correlation between F (max) for five EEM-PARAFAC extracted CDOM components, C1-C5, FI (370), HIX, BIX, and water quality parameters, and four antibiotics (i.e., Norfloxacin, Enrofloxacin, Sulfamethoxazole and Metronidazole), were determined through a redundancy analysis (RDA), with species-environment correlations of 0.887 and 0.833, respectively. The results showed that spatial variation in land cover, pollution sources, and terrestrial contribution in water quality affected F (max) for the fluorescent components C1-C5 and the fluorescence indices, indicating a high diverse chemical composition and transformation history. The F (max) for terrestrial humic-like components, C4 and C5, showed spatial variation depending on land cover and anthropogenic impacts. Further correlation and regression analyses indicated that CDOM soil fulvic-like component C5 correlated with Sulfamethoxazole and Metronidazole (t test, p < 0.01). Our results indicate that the spatial distributions of F (max) for CDOM fluorescent terrestrial components, evaluated by EEM-PARAFAC, have potential implications for the monitoring of Sulfamethoxazole and Metronidazole in surface waters. Further, these findings can be used to understand the biogeochemical cycling of CDOM and its effects on antibiotics pollution in the environment.


英文关键词Chromophoric dissolved organic matter Antibiotics PARAFAC Yalu River Tumen River North Korea
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000444202800077
WOS关键词DISSOLVED ORGANIC-MATTER ; EXCITATION-EMISSION MATRIX ; HUMID/SEMI-ARID REGION ; RESISTANCE GENES ; VETERINARY ANTIBIOTICS ; MOLECULAR-WEIGHT ; WATER-QUALITY ; WASTE-WATER ; CARBON ; LAKES
WOS类目Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/209155
作者单位1.Northeast Normal Univ, Inst Grass Sci, Changchun 130024, Jilin, Peoples R China;
2.Northeast Normal Univ, Dept Environm, Changchun 130024, Jilin, Peoples R China
推荐引用方式
GB/T 7714
Mu, Guangyi,Ji, Meichen,Li, Sijia. Evaluation of CDOM sources and their links with antibiotics in the rivers dividing China and North Korea using fluorescence spectroscopy[J],2018,25(27):27545-27560.
APA Mu, Guangyi,Ji, Meichen,&Li, Sijia.(2018).Evaluation of CDOM sources and their links with antibiotics in the rivers dividing China and North Korea using fluorescence spectroscopy.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(27),27545-27560.
MLA Mu, Guangyi,et al."Evaluation of CDOM sources and their links with antibiotics in the rivers dividing China and North Korea using fluorescence spectroscopy".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.27(2018):27545-27560.
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