Seasonal variation and partitioning of endocrine disrupting chemicals in waters and sediments of the Pearl River system, South China

Gong, Jian; Duan, Dandan; Yang, Yu; Ran, Yong; Chen, Diyun

doi:10.1016/j.envpol.2016.07.015

Cited by 46 publications

(11 citation statements)

References 49 publications

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“…The sums of OC-bound chemical concentrations were 10.5 mmol/g OC (site A) and 5.7 mmol/g OC (site B) in SPM and 65.1 (site A) and 87.2 mmol/g OC (site B) in the sediment (Figure S9A). A higher level of OC-bound contamination in SPM than in the sediment was found by Gong et al for endocrine-disrupting chemicals (EDCs) in the Pearl River, China, which used the OC content in particles to normalize the detected concentrations to OC basis. PAHs contributed the most to the bioavailable parts of SPM and the sediment (Figure S9B).…”

Section: Results and Discussionsupporting

confidence: 93%

Suspended Particulate Matter—A Source or Sink for Chemical Mixtures of Organic Micropollutants in a Small River under Baseflow Conditions?

Niu¹,

Ahlheim²,

Glaser

et al. 2021

Environ. Sci. Technol.

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Suspended particulate matter (SPM) plays an important role in the fate of organic micropollutants in rivers during rain events, when sediments are remobilized and turbid runoff components enter the rivers. Under baseflow conditions, the SPM concentration is low and the contribution of SPM-bound contaminants to the overall risk of organic contaminants in rivers is assumed to be negligible. To challenge this assumption, we explored if SPM may act as a source or sink for all or specific groups of organic chemicals in a small river. The concentrations of over 600 contaminants and the mixture effects stemming from all chemicals in in vitro bioassays were measured for river water, SPM, and the surface sediment after solid-phase extraction or exhaustive solvent extraction. The bioavailable fractions of chemicals and mixture effects were estimated after passive equilibrium sampling of enriched SPM slurries and sediments in the lab. Dissolved compounds dominated the total chemical burden in the water column (water plus SPM) of the river, whereas SPM-bound chemicals contributed up to 46% of the effect burden even if the SPM concentration in rivers was merely 1 mg/L. The equilibrium between water and SPM was still not reached under low-flow conditions with SPM as a source of water contamination. The ratios of SPM-associated to sediment-associated neutral and hydrophobic chemicals as well as the ratios of the mixture effects expressed as bioanalytical equivalent concentrations were close to 1, suggesting that the surface sediment can be used as a proxy for SPM under baseflow conditions when the sampling of a large amount of water to obtain sufficient SPM cannot be realized.

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Section: Results and Discussionsupporting

confidence: 93%

Suspended Particulate Matter—A Source or Sink for Chemical Mixtures of Organic Micropollutants in a Small River under Baseflow Conditions?

Niu¹,

Ahlheim²,

Glaser

et al. 2021

Environ. Sci. Technol.

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“…The higher concentrations in the sampling of June, both in water and in sediments, can be motivated by the increasing solubility of EDCs due to the higher environmental temperature and the lagoon's low thermal capacity (max depth ≤5 m). Similar results have indeed been reported by Gong et al (2016).…”

Section: Resultssupporting

confidence: 92%

“…Critically, many of these resulted indeed in some cases even more estrogenic than BPA itself (Eladak et al, 2015; Michalowicz et al, 2015; Mokra et al, 2018; Rosenmai et al, 2014; Russo et al, 2018; Usman & Ahmad, 2016). So far, BPs have been detected in food (Cacho et al, 2012; Fattore et al, 2015; Grumetto et al, 2013; Liao & Kannan, 2013), house dust (Liao, Liu, Guo, et al, 2012), water and sediments of seas, rivers, and lakes (Gong et al, 2016; Liao, Liu, Alomirah, et al, 2012; Liu et al, 2017; Noszczynska & Piotrowska‐Seget, 2018; Song et al, 2014; Sun et al, 2017), personal care products (Liao & Kannan, 2014), and thermal paper (Liao et al, 2012; Russo et al, 2017). Furthermore, BPs have also been detected in human biological specimens such as blood, urine, and saliva (Cobellis et al, 2009; Cunha & Fernandes, 2010; Liao, Liu, Alomirah, et al, 2012; Russo et al, 2019; Zhou et al, 2013; Zhou et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

The occurrence of selected endocrine‐disrupting chemicals in water and sediments from an urban lagoon in Southern Italy

Russo

Laneri

Lorenzo

et al. 2021

Water Environment Research

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Endocrine‐disrupting chemicals (EDCs) are agents able to exert perturbation toward the endocrine system via a broad array of signalling pathways. Some EDCs are released into the environment as a result of antropogenic activities. Analytical surveillance plays a critical role in investigating the prevalence of such chemicals in environmental samples. A study was carried out in a lagoon in Southern Italy, a water basin relates to the sea through a mouth channel, making this water body a “dynamic environment”. The screening of fourteen EDCs in surface waters and sediments, includes a fast and cost‐effective sample preparation, based on a solid–liquid (sediments) and liquid–liquid (surface waters) extraction and a chromatographic analysis by liquid chromatography tandem UV and fluorescence detection. Only four chemicals out the fourteen investigated EDCs were detected in both matrices with a frequency higher than 60%. The average concentrations of the single EDC were higher in sediments (730–155.000 ng kg−1 dw) than in surface waters (132–28.000 ng L−1). Limited to the assayed EDCs, the ecosystem has a low risk regarding to the conservation of biodiversity of the animal species living thereby, since the total estrogenic activity does not exceed 1 ng L−1. Practitioner points Occurrence of selected EDCs was investigated in an Italian lagoon in Southern Italy. BPAF, BADGE, and BPA were the most frequently and highly detected compounds in both waters and sediments. Concentration levels were greater in the sediment than in water samples. Low risk for the ecosystem biodiversity concerning investigated EDCs.

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“…This area is also one of the most developed and most densely populated regions in the country, which has compromised the environment. Various organic pollutants, including phenolic EDCs, have been found omnipresent in waters, sediments, and/or organisms in the catchment (Peng et al , 2017b; Yu et al ; Liu et al ; Gong et al ; Zeng et al ). Therefore, in the present study, the occurrence of phenolic EDCs was investigated in 9 species of typical freshwater fish and one species of prawn from the Pearl River catchment, China, to reveal their bioaccumulation in freshwater wildlife.…”

Section: Introductionmentioning

confidence: 99%

Body size–dependent bioaccumulation, tissue distribution, and trophic and maternal transfer of phenolic endocrine‐disrupting contaminants in a freshwater ecosystem

Peng

Zheng

et al. 2018

Enviro Toxic and Chemistry

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Parabens, bisphenol A (BPA), triclosan, and triclocarban are recognized endocrine-disrupting contaminants (EDCs); and their occurrence in the environment has attracted increasing concern. Body size-dependent bioaccumulation, tissue distribution, trophic magnification, and maternal transfer of methyl-, ethyl-, propyl-, and butylparabens; 2-phenylphenol (PHP); BPA; triclosan; and triclocarban were investigated in freshwater fish of the Pearl River catchment, China. Most of the EDCs were detected in more than half of the biota samples, ranging from not detected to 6750 ng g lipid weight, with median concentrations of 5 to 72 ng g lipid weight. Livers generally contained the highest EDC levels (1609 ± 1860 ng g lipid wt, mean ± standard deviation), followed in decreasing order by eggs (842 ± 1317 ng g lipid wt), belly fats (488 ± 465 ng g lipid wt), and dorsal muscles (240 ± 239 ng g lipid wt) of the wildlife. Body size-dependent bioaccumulation of the EDCs was observed in the freshwater fish, which varied according to species, tissue, and compound. The concentrations of triclosan, PHP, and BPA usually showed decreasing trends, whereas parabens mostly demonstrated increasing tendency with increasing fish weights, indicating effects of growth dilution and bioaccumulation, respectively. Potential biomagnification was shown by triclosan with trophic magnification factors of 3.0, 4.3, and 4.0 in liver, belly fat, and dorsal muscle, respectively. In addition, the potential of maternal transfer in the fish was primarily revealed for methyl- and propylparabens, PHP, triclosan, and BPA. Presence of the EDCs in the freshwater organisms of the Pearl River catchment warrants more attention considering the potential of trophic magnification and maternal transfer. Environ Toxicol Chem 2018;37:1811-1823. © 2018 SETAC.

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Seasonal variation and partitioning of endocrine disrupting chemicals in waters and sediments of the Pearl River system, South China

Cited by 46 publications

References 49 publications

Suspended Particulate Matter—A Source or Sink for Chemical Mixtures of Organic Micropollutants in a Small River under Baseflow Conditions?

Suspended Particulate Matter—A Source or Sink for Chemical Mixtures of Organic Micropollutants in a Small River under Baseflow Conditions?

The occurrence of selected endocrine‐disrupting chemicals in water and sediments from an urban lagoon in Southern Italy

Body size–dependent bioaccumulation, tissue distribution, and trophic and maternal transfer of phenolic endocrine‐disrupting contaminants in a freshwater ecosystem

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