We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Assessing the Interrelationship Between Microplastics and Polychlorinated Biphenyls Contamination in Chinese Mangrove Sediment
Summary
Researchers quantified polychlorinated biphenyl (PCB) concentrations on microplastics extracted from mangrove sediments across representative sites in China, investigating the interrelationship between MP pollution dynamics and PCB contamination in these critical intertidal ecosystems. The study reveals how mangrove sediments accumulate both MPs and co-associated hydrophobic organic contaminants, highlighting combined pollution risks.
Mangrove ecosystems, critical intertidal zones at the land–ocean interface, are increasingly recognized for their role in microplastic (MP) pollution dynamics. Despite extensive research on the interaction of MPs with various chemical contaminants, the specific contamination levels of polychlorinated biphenyls (PCBs) associated with MPs in mangroves remain poorly understood. In this study, we quantified the concentrations of PCBs on MPs extracted from representative mangrove sediment samples across China, revealing values ranging from 9.80 to 13.91 ng/g. In contrast, PCB concentrations in sediment samples were found to vary between 25.67 and 69.85 ng/g. Our findings indicate a consistent level of PCB contamination on MPs across different sites, although these levels were marginally elevated compared to those in the surrounding sediments. Notably, Penta-PCBs were detected with the highest frequency across all samples analyzed. This study provides crucial insights into the occurrence and distribution of PCBs on MPs within the mangrove ecosystem, highlighting their significance in environmental contamination assessments.
Sign in to start a discussion.
More Papers Like This
[Occurrence Characteristics of Microplastics in Mangrove Sediments in the Jiulong River Estuary and the Association with Heavy Metals].
Researchers measured microplastic abundance and types in mangrove wetland sediments at the Jiulong River estuary in China, also examining associations with heavy metals. The findings show that mangrove sediments accumulate both microplastics and metals, raising concerns for the health of these coastal ecosystems.
Characteristics and distribution of microplastics in the coastal mangrove sediments of China
A survey of mangrove sediments along China's coast found microplastics were ubiquitous, with concentrations and polymer types varying by proximity to human activity and hydrological conditions. The study shows that mangrove forests, which provide critical coastal ecosystem services, are accumulating significant quantities of plastic pollution.
Potential risk of co-occurrence of microplastics and chlorinated persistent organic pollutants to coastal wetlands: Evidence from a case study
Researchers investigated the co-occurrence of microplastics and chlorinated persistent organic pollutants in coastal wetlands of Zhejiang, China, finding microplastics in 100 percent of samples. Although wetland microplastic levels were lower than other land types, the plastics showed strong capacity to adsorb and concentrate toxic organic chemicals. The study highlights the combined contamination risk that microplastics and persistent pollutants pose to sensitive coastal ecosystems.
Occurrence and distribution of microplastics and polychlorinated biphenyls in sediments from the Qiantang River and Hangzhou Bay, China
Researchers investigated the co-occurrence and spatial distribution of microplastics and polychlorinated biphenyls (PCBs) in sediments of the Qiantang River and Hangzhou Bay in China, finding microplastic concentrations were highest in urban river sections and identifying correlations between microplastic abundance and PCB levels.
Insights into co-occurrence characteristics and interplay of microbial communities and environmental pollutants on biofilm-colonized microplastics in mangrove ecosystems
Researchers conducted an in situ study in mangrove ecosystems examining how microplastics accumulate biofilms over time, finding progressive development of microbial communities across seasons, polymer types, and exposure durations, with heavy metals and persistent organic pollutants co-occurring on microplastic surfaces.