We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Distribution and characteristics of microplastics in the basin of Chishui River in Renhuai, China
AI summary Read the abstract
Researchers measured microplastic pollution in the Chishui River basin in Renhuai, China, finding abundances of 1.77–14.33 items/L dominated by fibrous particles (59.4%), with higher fiber levels in densely populated areas and more film-type MPs in agricultural zones.
As an emerging pollutant, microplastics widely exist in rivers all over the world. Due to the differences of economic development, economic structure and population in different regions, the abundance of microplastics in rivers is different. In those areas where agriculture is developed, the content of film microplastics is more, while in densely populated areas, the content of fibrous microplastics is more. Taking Renhuai Basin of Chishui River as the research object, the pollution characteristics and current situation of microplastics in the basin were analyzed, and the contamination risk of microplastics was evaluated. The abundance of microplastics in Renhuai basin of Chishui River ranges from 1.77 to 14.33 items/L. The main forms of microplastics were fibrous (59.4%), white (including transparent) (41.3%) and polychromatic (44.1%). The particle size of microplastics was mainly 500- 1000 μm (63.9%). According to the assessment, the risk of microplastics in the basin is 111.79, which is a secondary risk area. This study can provide a further reference for understanding the pollution characteristics of microplastics in rivers.
More Papers Like This
Distribution characteristics of microplastics in urban rivers in Chengdu city: The influence of land-use type and population and related suggestions
AI summary Read the abstract
Researchers surveyed microplastic concentrations in urban rivers of Chengdu, China, finding MP abundances of 20-763 items per liter in water and linking higher concentrations to dense residential areas and industrial land use. Polyethylene and polypropylene fibers dominated the MP assemblage, consistent with textile laundering and household waste as primary sources.
Baseline biomonitoring of microplastic pollution in freshwater fish from the Chishui River, China: Insights into accumulation patterns and influencing factors
AI summary Read the abstract
This first-ever biomonitoring study of the Chishui River in China found microplastics in all 31 fish species examined, with an average of about 240 particles per gram in both gills and intestines. Bottom-dwelling fish accumulated significantly more microplastics than those swimming near the surface, and the fish contained twice as many plastic polymer types as were found in the surrounding water and sediment. The widespread contamination of freshwater fish with microplastics raises concerns about human exposure through fish consumption.
Distribution Patterns of Microplastics Pollution in Urban Fresh Waters: A Case Study of Rivers in Chengdu, China
AI summary Read the abstract
Researchers surveyed microplastic pollution in urban rivers of Chengdu, China, finding concentrations of 5 to 10.5 items per liter, predominantly transparent fragments and fibers, with spatial distribution influenced by urbanization and wastewater discharge.
Occurrence, potential sources, and ecological risk assessment of microplastics in the inland river basins in Northern China
AI summary Read the abstract
Researchers surveyed microplastic pollution in a typical urban river system in Northern China, examining both surface water and sediment samples. They found that river sediments contained dramatically more microplastics than surface water, acting as a sink for this pollution, with polypropylene and polyethylene being the most common types. The study suggests that small fiber and fragment-shaped particles under 0.5 mm dominate these environments, likely originating from everyday plastic products and wastewater discharge.
Research Progress of Microplastic Pollution Status and Risk Assessment of Typical Rivers in China
AI summary Read the abstract
Rivers across China carry substantial microplastic loads, and this review finds that abundance is closely tied to population density, with urban rivers showing higher concentrations than rural ones. More than 60% of microplastics detected in most rivers were smaller than 1 mm — the size range most readily ingested by aquatic organisms and most difficult to remove by conventional treatment. The authors identify sewage plants, surface runoff, and atmospheric deposition as the main sources, and flag gaps in current risk assessment frameworks for river microplastics.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.