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The concentration of fine particles in the lake reflects the activity and land use of nearby humans.

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Researchers troll the surface waters of European lakes due to plastic and fiber contamination. Credit: Tanentzap AJ et al. , 2021 PLOS Biology, CC BY 4.0 (creativecommons.org/licenses/by/4.0/)

Predicting where anthropogenic debris accumulates in aquatic ecosystems is necessary for its control and remediation, but lake plastic and fiber pollution has not been well studied.Studies published in PLOS Biology Andrew Tanentzap and colleagues at the University of Cambridge, UK, found that lake particulate concentrations were higher than previously reported, and human activity and surrounding land use could be strong predictors of microplastic and anthropogenic fiber pollution. It suggests that.


Plastic microparticles are ingested by a variety of animals, including large vertebrates, and can worsen water quality.But little is known about how to do it Human activity Affects the concentration of fine particles in the lake. To better understand the accumulation of plastic and fiber particles in lakes, researchers surveyed the surface waters of 67 European lakes at latitudes of 30 degrees in a variety of environments between April and September 2019. I trolled.They counted and measured the microparticles of these lakes by chemical analysis under a microscope. lake Water quality.. The author then adapted the model to the field data to create synthetic and published data from over 2,100 nettows. They also followed existing computer models to test whether pollution was more common in lakes surrounded by more waste-producing lands.

The authors found that the concentration of fine particles in water quadrupled in areas with high human activity and doubled in areas with low forest coverage. This study excluded macroparticles larger than 5 mm that could be harmful to the environment. This may have underestimated the plastic buildup. The authors also found that lakes inhabited by more active microorganisms had one-fifth less particulates. This suggests that some natural species may help remove pollution. Future research is needed to test the ability to isolate microorganisms from the natural environment and break down microplastics and fibers.

湖の微粒子濃度は、近くの人間の活動と土地利用を反映しています

Lake Garda in northern Italy. Credit: Tanentzap AJ et al. , 2021 PLOS Biology, CC BY 4.0 (creativecommons.org/licenses/by/4.0/)

According to the author, “Our research provides a valuable base of evidence to help prioritize the monitoring and mitigation of artificial debris in lakes around the world. As artificial debris continues to pollute the environment. , Our data helps to contextualize future work, our model can inform control and repair efforts. “

“Most of our attention to plastic pollution focuses on the ocean, but we have found that our drinking water source, European lakes, is also contaminated with fine plastics and artificial fibers.” Adds Tanenzap. “Our research has been able to support direct control and remediation efforts by identifying hotspots. Fine particles Pollution based on surrounding land use and water quality. ”


Studies have found that plastic pollution in lakes provides a habitat for microalgae.


For more information:
Tanentzap AJ, Cottingham S, Fonvielle J, Riley I, Walker LM, Woodman SG and more. (2021) The concentration of microplastics and anthropogenic fibers in the lake reflects the surrounding land use. PLoS Biol 19 (9): e3001389. doi.org/10.1371/journal.pbio.3001389

Quote: The concentration of fine particles in the lake is obtained from https://phys.org/news/2021-09-microparticles-lakes-nearby-human.html on September 14, 2021 for nearby human activities and land use. (September 14, 2021) is reflected

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The concentration of fine particles in the lake reflects the activity and land use of nearby humans.

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