Distributions, transports and fates of short- and medium-chain chlorinated paraffins in a typical river-estuary system

Pan, Xiaohui; Zhen, Xiaomei; Tian, Chongguo; Tang, Jianhui

doi:10.1016/j.scitotenv.2020.141769

Cited by 21 publications

(9 citation statements)

References 34 publications

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“…4,11,12,14,15,42 The sampling site may also be affected by local sources since there are wastewater treatment and e-waste treatment plants, as well as manufacturing and fabrication facilities within a 20 km radius of the shore. 41 Tourism activities, including the use of paddle boats, boats, and ferries, could also contribute to CP contamination. Paint applied annually for preventative maintenance and waterproofing and parts in turbines used in ships and boats may contain CPs.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Although several metalworking facilities, plastic manufacturing facilities, and wastewater treatment plants are located along or close to the shore, they are more than 50 km away from the sampling site, reducing their potential impact. 41 Detectable levels of CPs in fish tissues from remote locations in the Great Lakes suggest the likely impact of atmospheric transport. 28 Previous studies suggested higher rates of atmospheric transport for CPs with low molecular weight, mostly SCCPs, 26,27 and associated those with higher molecular weight, mostly MCCPs and LCCPs, with local inputs.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Tourism activities, including the use of paddle boats, boats, and ferries, could also contribute to CP contamination. Paint applied annually for preventative maintenance and waterproofing and parts in turbines used in ships and boats may contain CPs . Port dredging can also increase the exposure of lake trout to CPs by disturbing the sediment…”

Section: Resultsmentioning

confidence: 99%

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Trends of Short- and Medium-Chain Chlorinated Paraffin Concentrations in Top Predator Fish Tissues from The Great Lakes

Alipour Parvizian,

Fernando,

Crimmins

et al. 2024

ACS EST Water

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In November 2021, the Environment and Climate Change Canada and the United States Environmental Protection Agency (US EPA) released a draft binational strategy for short-chain chlorinated paraffins (SCCPs) risk assessment to focus efforts on implementing risk mitigation and management options to reduce SCCPs in the Great Lakes basin. In accordance with this strategy, SCCPs have been added to US EPA's Great Lakes Fish Monitoring and Surveillance Program (GLFMSP). To provide a better understanding of the current state of the Great Lakes, homologue-based concentrations and overall trends of SCCPs and mediumchain chlorinated paraffins (MCCPs) in top predator fish tissues were assessed over the past decade, 2010 to 2020. Results show no obvious trends in CP concentrations in Lakes Ontario, Michigan, Huron, and Superior. Lake Erie exhibited a possible increasing trend for MCCPs, but no trend for SCCPs. The total concentrations of chlorinated paraffins (CPs) over the 10-year period for Lake Erie ranged from 3 to 19 ng/g wet weight (ww), in Lake Ontario from 6 to 18 ng/g ww, in Lake Huron from 7 to 26 ng/g ww, in Lake Michigan from 10 to 39 ng/g ww, and in Lake Superior from 0.6 to 18 ng/g ww.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

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Trends of Short- and Medium-Chain Chlorinated Paraffin Concentrations in Top Predator Fish Tissues from The Great Lakes

Alipour Parvizian,

Fernando,

Crimmins

et al. 2024

ACS EST Water

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“…Notably, in December 2022, the Chinese government issued an updated version of the “New Action Plan for New Pollutants Management”, which expressly delineated restrictive measures pertaining to SCCPs . More recently, MCCPs have been listed as substances of very high concern (SVHC) candidates and are likely to be included in the Stockholm Convention in the foreseeable future. , Presently, the widespread contamination of SCCPs and MCCPs has been detected in various environmental matrices, including soil, air, river, tea, meat, toys, and eggs . CPs enter the human body mainly through diet, ingestion, and skin absorption and can commonly be detected in human blood, breast milk, and placenta. ,− …”

Section: Introductionmentioning

confidence: 99%

Exposure to Short- and Medium-Chain Chlorinated Paraffins and the Risk of Gestational Diabetes Mellitus: A Nested Case–Control Study in Eastern China

Yang,

Yao,

Zeng

et al. 2024

Environ. Sci. Technol.

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Toxicological studies have indicated that exposure to chlorinated paraffins (CPs) may disrupt intracellular glucose and energy metabolism. However, limited information exists regarding the impact of human CP exposure on glucose homeostasis and its potential association with an increased risk of developing gestational diabetes mellitus (GDM). Here, we conducted a prospective study with a nested case−control design to evaluate the link between short-and medium-chain CP (SCCPs and MCCPs) exposures during pregnancy and the risk of GDM. Serum samples from 102 GDM-diagnosed pregnant women and 204 healthy controls were collected in Hangzhou, Eastern China. The median (interquartile range, IQR) concentration of SCCPs was 161 (127, 236) ng/mL in the GDM group compared to 127 (96.9, 176) ng/mL in the non-GDM group (p < 0.01). For MCCPs, the GDM group had a median concentration of 144 (117, 174) ng/mL, while the control group was 114 (78.1, 162) ng/mL (p < 0.01). Compared to the lowest quartile as the reference, the adjusted odds ratios (ORs) of GDM were 7.07 (95% CI: 2.87, 17.40) and 3.34 (95% CI: 1.48, 7.53) in the highest quartile of ∑SCCP and ∑MCCP levels, respectively, with MCCPs demonstrating an inverted U-shaped association with GDM. Weighted quantile sum regression evaluated the joint effects of all CPs on GDM and glucose homeostasis. Among all CP congeners, C 13 H 23 Cl 5 and C 10 H 16 Cl 6 were the crucial variables driving the positive association with the GDM risk. Our results demonstrated a significant positive association between CP concentration in maternal serum and GDM risk, and exposure to SCCPs and MCCPs may disturb maternal glucose homeostasis. These findings contribute to a better understanding of the health risks of CP exposure and the role of environmental contaminants in the pathogenesis of GDM.

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“…In addition, processes related to biological transformations also occur in the aquatic environment, among which biodegradation under aerobic and anaerobic conditions is distinguished (Payandi-Rolland et al, 2020;Wang et al, 2021). It should be emphasized that the mentioned processes occur with varied intensity which, mainly in surface watercourses, depends on a seasonal variation related to temperature and, consequently, to the dominant form of a river catchment usage (Xiaohui et al, 2021). In addition to naturally occurring phenomena in a given area, the quality of river water is influenced by anthropogenic factors related to the agricultural use of the land adjacent to river channels or the direct introduction of pollutant streams into water (Tao et al, 2021;Zhang et al, 2021a).…”

Section: Introductionmentioning

confidence: 99%

Studia Quaternaria

Ofman

2022

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The aim of the statistical analyses carried out was to identify similarities and to point out differences between the various tributaries of the Narew River, to identify the factors and processes responsible for the transformations occurring in the aquatic environment and finally, to identify the main sources of pollution in the river catchment. For the purposes of statistical analysis, the results of studies conducted as part of diagnostic monitoring by the General Inspectorate for Environmental Protection in 2017–2018 were used. The studies included 8 measurement points located directly on the Narew River and 17 points located on its selected left and right tributaries. Analysis of the collected results indicates that the chemical condition of the water in the Narew catchment is assessed as being poor. This observation may be due to the fact that the Narew catchment is mainly used for agricultural purposes and, in addition, there is a relatively large number of potential anthropogenic sources. As part of the analysis, two potential sources of pollution affecting water quality in the Narew catchment were identified, which include surface run-off and treated wastewater inflow.

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Distributions, transports and fates of short- and medium-chain chlorinated paraffins in a typical river-estuary system

Cited by 21 publications

References 34 publications

Trends of Short- and Medium-Chain Chlorinated Paraffin Concentrations in Top Predator Fish Tissues from The Great Lakes

Trends of Short- and Medium-Chain Chlorinated Paraffin Concentrations in Top Predator Fish Tissues from The Great Lakes

Exposure to Short- and Medium-Chain Chlorinated Paraffins and the Risk of Gestational Diabetes Mellitus: A Nested Case–Control Study in Eastern China

Studia Quaternaria

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