We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Seasonal variation and risk assessment of microplastics in surface water of the Manas River Basin, China
Summary
Researchers investigated seasonal variations in microplastic pollution across the Manas River Basin in China, sampling surface water during different seasons. They found that microplastic abundance varied significantly by season and location, with higher concentrations linked to agricultural runoff and urban discharge. The study provides a risk assessment framework for understanding how seasonal factors influence microplastic contamination in inland freshwater systems.
The ubiquity of microplastics in the environment has caused great influence to ecosystems and seriously threatened human health. To better understand the variation in microplastics in different seasons in an inland freshwater environment and determine the sources of microplastic pollution and its migration features, this study investigated the characteristics of microplastic pollution during dry (April) and wet (July) seasons in surface water of the Manas River Basin, China. The size, color, shape, area distribution and compound composition of microplastics were studied. Moreover, the risk of microplastic contamination was explored based on risk assessment models. The results demonstrated that the degree of pollution caused by microplastic abundance was minor in this study area. The average abundance of microplastics in April (17 ± 4 items/L) was higher than that in July (14 ± 2 items/L). The range in the abundance of microplastics in April and July were 22 ± 5-14 ± 3 items/L and 19 ± 2-10 ± 1 items/L, respectively. Highly hazardous polymers such as Polyvinyl chloride (PVC) and Polycarbonate (PC) have a significant impact on the results of the evaluation of the presence of microplastics. This study is an important reference for understanding the characteristics of the seasonal variation in microplastics in inland freshwater environments and has practical significance, as it will allow relevant agencies to accurately assess the pollution level of microplastics in different seasons. It is of practical significance to understand the sources and sinks of microplastics in inland freshwater environment.
Sign in to start a discussion.
More Papers Like This
Seasonal variations of microplastics in surface water and sediment in an inland river drinking water source in southern China
Researchers surveyed microplastic contamination in surface water and sediment of a southern China river used as a drinking water source during both flooding and dry seasons. They found microplastic abundances were generally higher during the dry period, with fibers being the dominant type and polyethylene the most common polymer. The study suggests that seasonal hydrological changes significantly affect microplastic distribution in inland drinking water sources.
Spatial–Temporal and Risk Assessment of Microplastics in the Surface Water of the Qinhuai River during Different Rainfall Seasons in Nanjing City, China
Researchers conducted a spatial-temporal analysis of microplastic contamination and risk in a river system across multiple seasons and sites, finding that concentrations varied significantly with location and time of year. Urban and industrial zones showed the highest microplastic loads and associated ecological risk.
Occurrence and pollution characteristics of microplastics in surface water of the Manas River Basin, China
Microplastics were found throughout the surface water of the Manas River Basin in China's Xinjiang region, with fibers being the dominant type and concentrations varying by location and season. The study documents plastic pollution in a relatively remote inland river system, suggesting widespread contamination even far from coastal and urban centers.
Seasonal influence on pollution index and risk of multiple compositions of microplastics in an urban river
A seasonal study of microplastics in an urban river in China found higher abundance in the dry season (183 items per square meter) compared to the wet season (102 items per square meter). Risk assessment indicated that fibers and small fragments posed the greatest ecological risk, with polymer-specific hazard quotients varying by season.
Understanding the seasonal variation of the microplastics occurrence and source in the water source: upstream of the Huangpu River in Shanghai as an example
This study examined seasonal variation in microplastic occurrence and potential sources in a monitored water system, finding higher MP concentrations during warmer months and identifying runoff from plastic-intensive land uses as the dominant seasonal driver.