Damming has changed the migration process of microplastics and increased the pollution risk in the reservoirs in the Shaying River Basin

Shen, Jiachen; Gu, Xu; Feng, Hongyu; Li, Dianpeng; Liu, Yan; Jiang, Xufei; Qin, Ge; An, Shuqing; Li, Ning; Leng, Xin

doi:10.1016/j.jhazmat.2022.130067

Cited by 20 publications

(6 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By comparing the quantitative examination to past studies of MPs in artificial lacustrine--riverine systems (Table 2), this study found an average concentration of 268 MPs/kg of sediment, and a similar concentration was also found by He et al [23], Shen et al [24], and Di and Wang [38]. Thus, the distribution patterns around different reservoirs from several regions [4,[21][22][23][24] are the highest in dam reservoirs and see a strong decrease in abundance downstream.…”

Section: Discussionsupporting

confidence: 79%

“…Although the fate and behavior of MPs in marine ecosystems has been widely studied, the transport and sedimentation processes of MPs in freshwater bodies is still not fully understood. Several studies have identified high accumulations of MPs in specific depositional areas of freshwater bodies, such as rivers [16,18,19], lakes [17,20], and dam reservoirs [4,[21][22][23][24]. Moreover, Horton et al [25] indicated that in artificial aquatic environments, the accumulation of MPs is more complicated than in completely natural systems due to the complex interaction of natural-artificial factors.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Microplastic Evaluation in Water and Sediments of a Dam Reservoir–Riverine System in the Eastern Carpathians, Romania

Pojar,

Dobre,

Lazăr

et al. 2024

Sustainability

View full text Add to dashboard Cite

The complex aquatic system of dam reservoirs is known to trap emerging pollutants as microplastics (MPs) in sediments and water column. Considering the knowledge gaps in this type of environment, we investigated the amount and distribution of MPs in the surface water layer, as well as in the surface and deep sediments of the Siriu Reservoir in the Buzău River system, which is located in the southern area of the Eastern Carpathians, Romania. There was a discrepancy between MP abundancy in both water and sediment samples collected near the reservoir (5.3 MPs/m3, 315.5 MPs/kg) and at several kilometers downstream of the dam (1.4 MPs/m3, 132.5 MPs/kg). The chronological accumulation of MPs in the lacustrine sediments was determined by analyzing 5 cm intervals of a 50 cm length core extracted from the reservoir bed. By comparing the concentration of MPs identified in each interval with the solid debit volumes registered in the last decade, we found that flood events could be traced easily due to abundant MP accumulation. Morphologically, the particles were observed mainly as fibers and fragments. Fourier transform infrared spectroscopy (FT-iR) investigations identified most of the MPs as polypropylene (28%), polyethylene (26%), and polyethylene terephthalate (19%).

show abstract

Section: Discussionsupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Microplastic Evaluation in Water and Sediments of a Dam Reservoir–Riverine System in the Eastern Carpathians, Romania

Pojar,

Dobre,

Lazăr

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

Section: Microplastics In the Context Of Disastermentioning

confidence: 99%

“…To illustrate, we explore the human receptor, detailing in the first instance the source abstraction stage which comprises social infrastructure. It is quite possible to ingest microplastics that might enter a reservoir or dam from mismanaged waste in the surroundings, river discharge, 19 or atmospheric deposition 20,21 directly when swimming 22 or indirectly when undertaking recreational activities such as fishing due to the trophic transfer of microplastics through the food web. 23 At the treatment stage of the WSC, exposure through inhalation could occur while working at the treatment plant when opening packaging 24 or from accumulated dust (cumulative fibers and fragments from items such as packaging, clothing, building materials 25 ), exposing the workforce which has economic ramifications.…”

Section: Microplastics In the Context Of Disastermentioning

confidence: 99%

Strategies to Reduce Risk and Mitigate Impacts of Disaster: Increasing Water Quality Resilience from Microplastics in the Water Supply System

Senathirajah,

Palanisami

2023

ACS EST Water

View full text Add to dashboard Cite

Microplastics contaminating the water supply system qualifies as a disaster. This has major far-reaching implications, posing significant threats to economic growth and human livelihoods, as well as environmental and human health and well-being. Thus, we need to reduce the risk and mitigate against the effects of microplastics to build resilience and ensure continuity and efficiency of water supply system functions. To date, microplastics in the water supply cycle have not been considered in the context of disaster management. Hence, we provide an understanding of the disaster risk that microplastics pose using a conceptual mathematical framework. Additionally, we enhance understanding of the resilience of the social and physical infrastructure by highlighting hazards that people and infrastructure in the community face. Insights of the social, economic, and other human factors that make them vulnerable highlights capacities required to reduce risk and mitigate impacts. By evaluating the social and physical infrastructure resilience to microplastics in the water supply system and recommending multidisciplinary strategies to build resilience over time, we aim to catalyze action to address the problem. This will also contribute toward achieving targets of the Sendai Framework for Disaster Risk Reduction 2015–2030 and UN Sustainable Development Goals.

show abstract

“…Dams limit the capacity of rivers to flow freely, altering many fundamental processes and activities that characterize healthy rivers 37 and result in a fast decline in biodiversity and significant ecosystem services 38 . Dams are found to trap microplastics in reservoir sediments and the construction of dam may also alter the distribution of sediment microplastics 39 . In addition, as the river current velocity is significantly reduced upstream of a dam, different microplastic sampling techniques may be impacted differently causing additional uncertainty in the impacts of dams on microplastic transport and deposition.…”

Section: Introductionmentioning

confidence: 99%

Distribution and risk assessment of microplastic pollution in a rural river system near a wastewater treatment plant, hydro-dam, and river confluence

Haque,

Holsen,

Baki

2024

Sci Rep

View full text Add to dashboard Cite

Rivers are the natural drainage system, transporting anthropogenic wastes and pollution, including microplastics (plastic < 5 mm). In a riverine system, microplastics can enter from different sources, and have spatial variance in concentration, physical and chemical properties, and imposed risk to the ecosystem. This pilot study presents an examination of microplastics in water and sediment samples using a single sample collection from the rural Raquette River, NY to evaluate a hypothesis that distinct locations of the river, such as downstream of a wastewater treatment plant, upstream of a hydro-dam, and river confluence, may be locations of higher microplastics concentration. In general, our results revealed the presence of high microplastic concentrations downstream of the wastewater treatment plant (in sediments), upstream of the hydro dam (both water and sediment), and in the river confluence (water sample), compared to other study sites. Moreover, the risk assessment indicates that even in a rural river with most of its drainage basin comprising forested and agricultural land, water, and sediment samples at all three locations are polluted with microplastics (pollution load index, PLI > 1; PLIzone = 1.87 and 1.68 for water and sediment samples respectively), with risk categories between Levels I and IV (“minor” to “danger”). Overall, the river stands in a “considerable” risk category (PRIzone = 134 and 113 for water and sediment samples respectively). The overall objective of this pilot study was to evaluate our hypothesis and advance our understanding of microplastic dynamics in rural river systems, elucidating their introduction from a point source (wastewater treatment plant), transit through an impediment (hydro-dam), and release into a vital transboundary river (confluence of Raquette-St. Lawrence Rivers).

show abstract

Damming has changed the migration process of microplastics and increased the pollution risk in the reservoirs in the Shaying River Basin

Cited by 20 publications

References 61 publications

Microplastic Evaluation in Water and Sediments of a Dam Reservoir–Riverine System in the Eastern Carpathians, Romania

Microplastic Evaluation in Water and Sediments of a Dam Reservoir–Riverine System in the Eastern Carpathians, Romania

Strategies to Reduce Risk and Mitigate Impacts of Disaster: Increasing Water Quality Resilience from Microplastics in the Water Supply System

Distribution and risk assessment of microplastic pollution in a rural river system near a wastewater treatment plant, hydro-dam, and river confluence

Contact Info

Product

Resources

About