Large variation in Mekong river plastic transport between wet and dry season DOI Creative Commons
Tim van Emmerik, Louise Schreyers, Yvette Mellink

et al.

EarthArXiv (California Digital Library), Journal Year: 2023, Volume and Issue: unknown

Published: Feb. 27, 2023

Plastic pollution in rivers is of increased global concern. Rivers act both as pathways for land-based plastic waste into the ocean, and reservoirs long-term retention. Reliable observations are key to designing, optimizing evaluating strategies prevent reduce pollution. Several measurement methods have been developed quantify macroplastic ($>$0.5 cm) storage transport rivers, including visual counting from bridges, net sampling, images-based techniques. Method harmonization crucial make sure data collected using different techniques remains consistent. In turn, this would allow comparative analysis within between rivers. paper, we present a approach estimate floating item mass methods. The allows estimating same values based on collection protocols. We applied our Mekong-Tonlé Sap-Bassac river system around city Phnom Penh, Cambodia. estimated wet dry season by combining sampling counting. During season, Mekong with factor up 170 (item transport) 294 (mass compared season. balance Penh changed considerably, which was mainly due flow reversal Tonlé Sap Downstream total consistently higher than upstream, although less (1.5-1.7 times) (3.8-5.9 times), emphasizing city's role entry point Mekong. largest sources uncertainty assumed be caused differences methods, size ranges, extrapolation observation full width, contribution submerged transport. Future work should focus other counting, reducing uncertainties related Our results show that dynamics highly variable over time space, especially confluences, bifurcations urban areas. With paper aim contribute further monitoring.

Language: Английский

Large variation in Mekong river plastic transport between wet and dry season DOI Creative Commons
Tim van Emmerik, Louise Schreyers, Yvette Mellink

et al.

Frontiers in Environmental Science, Journal Year: 2023, Volume and Issue: 11

Published: May 9, 2023

Plastic pollution in rivers is of increased global concern. Rivers act both as pathways for land-based plastic waste into the ocean, and reservoirs long-term retention. Reliable observations are key to designing, optimizing evaluating strategies prevent reduce pollution. Several measurement methods have been developed quantify macroplastic ( > 0.5 cm) storage transport rivers, including visual counting from bridges, net sampling, images-based techniques. Method harmonization crucial make sure data collected using different techniques remains consistent. In turn, this would allow comparative analysis within between rivers. paper, we present a approach estimate floating item mass methods. The allows estimating same values based on collection protocols. We applied our Mekong-Tonlé Sap-Bassac river system around city Phnom Penh, Cambodia. estimated wet dry season by combining sampling counting. During season, Mekong with factor up 170 (item transport) 294 (mass compared season. balance Penh changed considerably, which was mainly due flow reversal Tonlé Sap Downstream total consistently higher than upstream, although less (1.5–1.7 times) (3.8–5.9 times), emphasizing city’s role entry point Mekong. largest sources uncertainty assumed be caused differences methods, size ranges, extrapolation observation full width, contribution submerged transport. Future work should focus other counting, reducing uncertainties related Our results show that dynamics highly variable over time space, especially confluences, bifurcations urban areas. With paper aim contribute further monitoring.

Language: Английский

Citations

16
Trajectory, fate, and magnitude of continental microplastic loads to the inner shelf: A case study of the world's largest coastal shallow lagoon DOI
Carolina Rodríguez, Pablo Gabriel Silva Barroso,

Laura Moreira

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 948, P. 174791 - 174791

Published: July 15, 2024

Language: Английский

Citations

3
Trajectory, Fate, and Magnitude of Continental Microplastic Loads to the Inner Shelf: A Case Study of the World's Largest Coastal Shallow Lagoon DOI
Carolina Rodríguez, Pablo Gabriel Silva Barroso, Lino Marques

et al.

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

Citations

1
Large variation in Mekong river plastic transport between wet and dry season DOI Creative Commons
Tim van Emmerik, Louise Schreyers, Yvette Mellink

et al.

EarthArXiv (California Digital Library), Journal Year: 2023, Volume and Issue: unknown

Published: Feb. 27, 2023

Plastic pollution in rivers is of increased global concern. Rivers act both as pathways for land-based plastic waste into the ocean, and reservoirs long-term retention. Reliable observations are key to designing, optimizing evaluating strategies prevent reduce pollution. Several measurement methods have been developed quantify macroplastic ($>$0.5 cm) storage transport rivers, including visual counting from bridges, net sampling, images-based techniques. Method harmonization crucial make sure data collected using different techniques remains consistent. In turn, this would allow comparative analysis within between rivers. paper, we present a approach estimate floating item mass methods. The allows estimating same values based on collection protocols. We applied our Mekong-Tonlé Sap-Bassac river system around city Phnom Penh, Cambodia. estimated wet dry season by combining sampling counting. During season, Mekong with factor up 170 (item transport) 294 (mass compared season. balance Penh changed considerably, which was mainly due flow reversal Tonlé Sap Downstream total consistently higher than upstream, although less (1.5-1.7 times) (3.8-5.9 times), emphasizing city's role entry point Mekong. largest sources uncertainty assumed be caused differences methods, size ranges, extrapolation observation full width, contribution submerged transport. Future work should focus other counting, reducing uncertainties related Our results show that dynamics highly variable over time space, especially confluences, bifurcations urban areas. With paper aim contribute further monitoring.

Language: Английский

Citations

2