Superimposed microplastic pollution in a coastal metropolis

Su, Lei; Sharp, Simon M.; Pettigrove, Vincent; Craig, Nicholas; Nan, Bingxu; Du, Fangni; Shi, Huahong

doi:10.1016/j.watres.2019.115140

Cited by 159 publications

(59 citation statements)

References 75 publications

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“…Characterising MPs in estuaries and understanding influencing factors are critical in identifying MP pollution hotspots [46]. In this study, which involves four estuaries subject to varying levels and types of anthropogenic impacts, MP abundance increased with increasing levels of disturbance ( Figure 5).…”

Section: Disturbance and The Presence Of Plasticsmentioning

confidence: 95%

Towards Characterising Microplastic Abundance, Typology and Retention in Mangrove-Dominated Estuaries

Govender

Naidoo

Rajkaran

et al. 2020

Water

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Plastic and, particularly, microplastic (MP) pollution is a growing research theme, dedicated largely to marine systems. Occurring at the land–sea interface, estuarine habitats such as mangroves are at risk of plastic pollution. This study compared MP pollution (level, morphotype, polymer composition, size and colour) across four South African estuaries, in relation to the built and natural environment. Mouth status, surrounding human population densities and land-use practices influenced the level and type of MP pollution. Systems that were most at risk were predominantly open estuaries surrounded by high population densities and diverse land use types. Microplastic levels and the diversity of types detected increased with increasing levels of anthropogenic disturbance. Overall, microfibres dominated in estuarine water (69%) and mangrove sediment (51%). Polyethylene (43%) and polypropylene (23%) were the dominant polymers overall. Weathered fishing gear, weathered packaging items and run-off from urban/industrial centres are probable sources of MP pollution . Increased run-off and river input during the wet/rainy season may explain the markedly higher MP loads in estuarine waters relative to the dry season. By contrast, MP deposition in mangrove sediment was higher during the dry season. Sediment MP abundance was significantly positively correlated with both pneumatophore density and sediment size (500–2000 µm). This study highlights the role of mangroves as MP sinks, which may limit movement of MPs into adjacent environments. However, under conditions such as flooding and extreme wave action, mangroves may shift from sinks to sources of plastic pollution.

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Section: Disturbance and The Presence Of Plasticsmentioning

confidence: 95%

Towards Characterising Microplastic Abundance, Typology and Retention in Mangrove-Dominated Estuaries

Govender

Naidoo

Rajkaran

et al. 2020

Water

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“…Plastic microfibers (less than5mm) and nanofibers (less than100 nm) have been identified in ecosystems in all regions of the globe and have been estimated to comprise up to 35% of primary microplastics in marine environments, a major proportion of microplastics on coastal shorelines and to persist for decades in soils treated with sludge from wastewater treatment plants [20] .…”

Section: Introductionmentioning

confidence: 99%

Study on the influence of advanced treatment processes on the surface properties of polylactic acid for a bio-based circular economy for plastics

Sourkouni

Kalogirou

Moritz

et al. 2021

Ultrasonics Sonochemistry

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“…Certain terrestrial environments are highly contaminated by microplastic pollution, those highly subject to plastic garbage or in close proximity to other plastic waste conduits (Blasing and Amelung 2018;Su et al 2020). Major sources of microplastics on land include plastic mulching film (Liu et al 2014), urban waste (Kole et al 2017), wastewater treatment sludge (Gatidou et al 2019), road and tire debris (Siegfried et al 2017;Nizzetto et al 2016), construction sites (Kawecki and Nowack 2019), artificial turf deterioration (Li 2019), and single use plastic products (Efimova et al 2018), among others.…”

Section: Sources and Presence Of Microplastics In Soil Environmentsmentioning

confidence: 99%

Microplastics in Soils and Sediment: Sources, Methodologies, and Interactions with Microorganisms

Peller¹,

McCool²,

Watters³

2020

Handbook of Microplastics in the Environment

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The massive scope of plastic and microplastic pollution in soils and sediments requires broad and thorough studies to understand details of the extent and effects of these persistent pollutants. Plastic particulate pollutants in the environment are subjected to natural processes, fragment over time into smaller pieces, and influence the surrounding biota. Land environments, from open fields to agricultural fields to watersheds and deep ocean sediment, have been subjected to plastics/microplastics from a variety of sources and via natural and anthropogenic transport for many years. A number of different sampling, processing, and detection methods have been used to identify and quantify the loads of microplastics in soils and sediments. Scientific studies are still lacking systematic, standardized protocols, which will allow for accurate comparisons and compilations of data from around the world. This review chapter highlights many studies published over the past several years on land environments affected by

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Superimposed microplastic pollution in a coastal metropolis

Cited by 159 publications

References 75 publications

Towards Characterising Microplastic Abundance, Typology and Retention in Mangrove-Dominated Estuaries

Towards Characterising Microplastic Abundance, Typology and Retention in Mangrove-Dominated Estuaries

Study on the influence of advanced treatment processes on the surface properties of polylactic acid for a bio-based circular economy for plastics

Microplastics in Soils and Sediment: Sources, Methodologies, and Interactions with Microorganisms

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