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Physicochemical properties dominating the behaviors of short/medium chain chlorinated paraffins in the atmosphere.
J Hazard Mater
September 2024
CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. Electronic address:
Chlorinated paraffins (CPs) are chlorinated alkane mixtures widely used as flame retardants and plasticizers in multiple industrial products. Systematic research on how homolog-specific properties affect their atmospheric behaviors is limited. Herein, we investigated the levels of short-chain CPs (SCCPs) and medium-chain CPs (MCCPs) in long-timescale, seasonal, and size-fractioned particles in the urban area of Dalian, a coastal city in northern China.
View Article and Find Full Text PDFTissue-Specific Accumulation of Orally Administered Short- and Medium-Chain Chlorinated Paraffins in Honeybees ( L.).
Environ Sci Technol
August 2024
State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China.
Article Synopsis
- Researchers investigated the effects of short- and medium-chain chlorinated paraffins (SCCPs and MCCPs) on young honeybee workers, exposing them to a concentration of 10 mg/L for 7 days.
- The study found that these chemicals can accumulate in the honeybee's body, with higher concentrations in the midgut compared to the hindgut and head.
- Results indicated that honeybees are more prone to bioaccumulate MCCPs, particularly those with lower molecular weight, while showing less tendency to selectively accumulate SCCPs.
Space-use strategy drives fine-scale spatial variation of chlorinated paraffins in indo-pacific humpback dolphins.
Environ Pollut
October 2024
School of Marine Sciences, Zhuhai Key Laboratory of Marine Bioresources and Environment, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Sun Yat-Sen University, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China.
Contaminant accumulation in organisms can be influenced by both biological traits and environmental conditions. However, delineating the main factors affecting contaminant burdens in organisms remains challenging. Here, we conducted an initial investigation into the impact of diet and habitat on the accumulation of short- (SCCPs) and medium-chain chlorinated paraffins (MCCPs) in Indo-Pacific humpback dolphins (2003-2020, n = 128) from the Pearl River Estuary (PRE), a highly polluted estuary in China.
View Article and Find Full Text PDFSpatial distribution and ecological risk assessment of short and medium chain chlorinated paraffins in water and sediments of river Ravi, Pakistan.
Sci Total Environ
May 2024
College of Earth and Environmental Sciences, University of the Punjab, Lahore 54590, Pakistan.
Short (SCCPs) and medium (MCCPs) chain chlorinated paraffins being the emerging organic pollutants have raised serious concerns due to their widespread use and related human health risks. However, their occurrence in aquatic bodies like rivers and associated damage to ecological integrity is yet unknown in some regions of the world. The current study is the first ever assessment of SCCPs and MCCPs in sediment and water of river Ravi, Pakistan.
View Article and Find Full Text PDFChlorinated paraffins in takeout food and its packaging in Beijing, China and dietary exposure risk.
Environ Res
July 2024
Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
Chlorinated paraffins (CPs) are hazardous to humans, and dietary intake acts as the primary pathway for human exposure to CPs. Takeout food is popular worldwide, but the presence of CPs in takeout food and its packaging is unclear. In this study, the concentrations and distributions of short- and median-chain CPs (SCCPs and MCCPs, respectively) were measured in 97 samples of four categories of takeout food and 33 samples of three types of takeout packaging.
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