We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
The Occurrence of Microplastics Pollution in the Surface Water and Sediment of Lake Chenghai in Southwestern China
AI summary Read the abstract
This study measured microplastic pollution in the water and sediment of Lake Chenghai, a plateau lake in southwestern China. Researchers found microplastics at all sampling sites, with fibers and fragments being the most common types, mainly from synthetic clothing and plastic packaging. The findings show that even remote freshwater lakes used by local communities are contaminated with microplastics, raising concerns about drinking water safety.
Microplastics (MPs) in freshwater environments, such as lakes, have become a significant issue in recent years. However, studies on the lakes of the Yunnan Plateau have been limited. To understand the pollution status and sources of MPs in Lake Chenghai (LCH), 36 sampling sites were selected for the surface water and sediment samples. Morphological identification, compositional analysis, abundance measurement, and spatial distribution mapping of the MPs were carried out. We also performed correlation analyses with hydrological parameters and physicochemical indexes of water and sediments. We aimed to uncover the spatial distribution patterns of the MPs in LCH, along with potential sources. Our findings revealed that all samples contained MPs and all of them were fibers. The abundance of MPs ranged from 90 to 770 n/m3 (329.44 rms) in the water and from 10 to 115 n/kg (43.19 rms) in the sediments, with particle sizes of 1-3 mm and less than 1 mm, respectively. Transparent MPs were prevalent, comprising 68% of the MPs found in the water and 63% in the sediments. The primary components of the MPs were polypropylene (PP), polyethylene terephthalate (PET), and man-made fibers (rayon). The spatial distribution showed an increasing concentration of MPs from south to north in the surface water, whereas the opposite trend was found in the sediments. Human activities, prevailing winds, and the river flowing into the lake influenced the spatial distribution pattern of the MPs. The abundance and assemblage characteristics of the MPs were directly correlated with the factors of nitrogen, phosphorus, and particle size in the water and sediments, but the correlation was not significant. The main source of MPs was the production and livelihoods of the neighboring residents, especially the use of fishing gears and nets. Since LCH shows significant pollution from MPs, there is an urgent need to control and manage the watershed in order to reduce the input of MPs in the future.
More Papers Like This
Unmasking Microplastic Pollution: A Study on the Distribution and Impact of Microplastics in Yuehai Lake, China
AI summary Read the abstract
This study surveyed microplastic characteristics and distribution across water samples from Yuehai Lake in China, finding widespread contamination with fragments and fibers, and identifying local anthropogenic activities and atmospheric deposition as primary sources.
Distribution and Sedimentation of Microplastics in Taihu Lake
AI summary Read the abstract
Researchers studied microplastic distribution and sedimentation in Taihu Lake, one of China's largest freshwater lakes, and its surrounding rivers. Microplastics were found throughout the lake with higher concentrations near urban and industrial areas, raising concerns for water quality and aquatic life.
Microplastics in surface waters of Dongting Lake and Hong Lake, China
AI summary Read the abstract
Researchers sampled surface waters of Dongting Lake and Hong Lake in China and found microplastic contamination at both sites, with fibers as the dominant type and concentrations reflecting nearby human population density and land use.
Distribution of microplastics in benthic sediments of Qinghai Lake on the Tibetan Plateau, China
AI summary Read the abstract
Researchers mapped the distribution of microplastics in the bottom sediments of Qinghai Lake on the Tibetan Plateau, sampling from shore to center. The study found microplastics throughout the lake sediments even in this remote, high-altitude location, with abundance patterns influenced by factors such as tourism activity and water currents rather than simply decreasing from shore to center.
Microplastics in Sediment and Surface Water of West Dongting Lake and South Dongting Lake: Abundance, Source and Composition
AI summary Read the abstract
Microplastics were found in both surface water and sediments of West Dongting Lake and South Dongting Lake in China, with fibers and fragments as the dominant types and concentrations influenced by proximity to urban and agricultural land use. The study provides the first data on microplastic contamination in China's second-largest freshwater lake system.
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.