Parallel factor analysis of fluorescence EEM spectra to identify THM precursors in lake waters

Hua, Bin; Veum, Kristen S.; Yang, John; Jones, John R.; Deng, Baolin

doi:10.1007/s10661-008-0728-1

Cited by 49 publications

(21 citation statements)

References 31 publications

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“…The concentrations of HM detected in the three locations under study were similar to those reported for the groundwater (Salameh et al 2002), in addition to rivers and estuaries (Christof et al 2002;Hua et al 2010). In the Valley of Mexico, although the generation of HM in the Xochimilco canals has been studied, it is not possible to compare the results because these were omitted from the preceding report (Mazari-Hiriart et al 2008).…”

Section: Concentration Of Hmsupporting

confidence: 85%

Pro-oxidant and antioxidant responses in the liver and kidney of wild Goodea gracilis and their relation with halomethanes bioactivation

Olivares-Rubio¹,

Martínez-Torres²,

Domínguez-López³

et al. 2013

Fish Physiol Biochem

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In mammals, it has been shown that halomethanes (HM) are bioactivated by enzymes such as CYP 2E1 and the theta isoform of GST to produce reactive metabolites. However, in fish, little information is available, although HM can form autochthonously in aquatic environments. This study assessed the effect of HM in dusky splitfin (Goodea gracilis) from three lakes of the Valley of Mexico by analysing specific HM biomarkers as well as a broad range of biomarkers. The concentration of HM was a function of its half-life (higher in deep waters), while its precursors and solar radiation are secondary factors that determine its concentration. The kidney showed higher basal metabolism than the liver, probably because of its function as a haematopoietic and filtration organ. Using integrated biological response version 2 (IBRv2), it was found that the hepatic and renal O₂· content is a pro-oxidant force capable of inducing oxidative stress (ROOH, TBARS and RC=O). Early damage was found to be dependent on low concentrations of HM in Major Lake, whereas late damage was observed in fish exposed to higher concentrations of HM in Zumpango Lake and Ancient Lake. The activities of enzymes involved in antioxidant defence seemed to be inefficient. The quantitative assessment of biomarkers (ANOVA) and the estimate of parameter A obtained from IBRv2 provided different information. However, the data support the greater predictive power of IBRv2, but it requires a series of interrelated biomarkers to infer these possibilities. G. gracilis presents marked patterns of adaptation, which are dependant on the HM concentrations in environmental mixtures, although the response is complex and many toxicants could induce similar responses.

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Section: Concentration Of Hmsupporting

confidence: 85%

Pro-oxidant and antioxidant responses in the liver and kidney of wild Goodea gracilis and their relation with halomethanes bioactivation

Olivares-Rubio¹,

Martínez-Torres²,

Domínguez-López³

et al. 2013

Fish Physiol Biochem

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“…36,54,55 Previously all of these identified PARAFAC components have been found to correlate with regulated and unregulated DBPs precursors. [56][57][58][59] Thus their presence could indicate a risk for producing DBPs in chlorinated finished water.…”

Section: Comparison Of Feem Measurements Of Modified and Reference Bimentioning

confidence: 99%

Partial renewal of granular activated carbon biofilters for improved drinking water treatment

Moona

Murphy

Bondelind

et al. 2018

Environ. Sci.: Water Res. Technol.

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“…Chromophoric DOM (CDOM) has been measured in a variety of lakes, providing a concentration proxy, degradation or diagenetic status, and inferred structural characterizations of bulk DOM (Cuthbert and del Giorgio 1992, McKnight et al 1997, Morris and Hargreaves 1997Wu et al 2003, Hua et al 2010, Yao et al 2011. More recently, fluorescence excitationemission matrix (EEM) techniques coupled with parallel factor (PARAFAC) analysis have been widely used to investigate characteristics of DOM in aquatic systems, including lake waters (Mostofa et al 2005, Wang et al 2007, Hiriart-Baer et al 2008, Fellman et al 2010, Osburn et al 2011, Yuan et al 2014, Zhao et al 2016.…”

Section: Introductionmentioning

confidence: 99%

Characterization of bulk and chromophoric dissolved organic matter in the Laurentian Great Lakes during summer 2013

Zhou

Guo

Minor

2016

Journal of Great Lakes Research

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The Laurentian Great Lakes contain ~21% of earth's surface freshwater and are experiencing dramatic decadal-scale changes to their water quality, biogeochemistry and ecosystem functions. We report here the first data set of dissolved organic carbon (DOC) and chromophoric dissolved organic matter (DOM), including UV-visible absorbance and derived optical properties and fluorescence excitation-emission matrices (EEMs), for open-lake surface-waters from each of the Great Lakes. Concentrations of DOC ranged from 86 to 240 µmol/L and the absorption coefficient at 254-nm (a 254) varied from 2.67 to 10.47 m-1 in Great Lakes waters. UV-visible and fluorescence characterization indicated that the DOM in open-lake waters in all the Great Lakes was primarily autochthonous. Both DOC and a 254 increased from Lake Superior to Lakes Erie and Ontario where aromaticity, molecular-weight and humification-degree of DOM were also higher. These variations are consistent with both the water transport pathway and the trend of increasing human population and relative watershed drainage area along the Great Lakes. Parallel factor analysis on fluorescence-EEM data revealed three terrestrial humic-like DOM components (C1, C2 and C4) and one protein-like DOM component (C3). Open Lake Huron had the highest protein-like/humic-like DOM ratio (C3/C1), while sites in Lakes Erie and Ontario had lower C3/C1 ratios, indicating a greater proportional influence of terrestrial DOM. Changes in DOM composition along the water transport pathway in the Great Lakes indicate varying impacts from terrestrial inputs and human activities in the different lake systems.

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Parallel factor analysis of fluorescence EEM spectra to identify THM precursors in lake waters

Cited by 49 publications

References 31 publications

Pro-oxidant and antioxidant responses in the liver and kidney of wild Goodea gracilis and their relation with halomethanes bioactivation

Pro-oxidant and antioxidant responses in the liver and kidney of wild Goodea gracilis and their relation with halomethanes bioactivation

Partial renewal of granular activated carbon biofilters for improved drinking water treatment

Characterization of bulk and chromophoric dissolved organic matter in the Laurentian Great Lakes during summer 2013

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