Density and composition of surface and buried plastic debris in beaches of Senegal

Tavares, Davi Castro; Moura, Jailson Fulgêncio de; Ceesay, Adam; Merico, Agostino

doi:10.1016/j.scitotenv.2020.139633

Cited by 34 publications

(8 citation statements)

References 75 publications

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“…Therefore, as the number of transects increased during the assessment, the chance of finding more CB also increased. The increase in CB and other litter items in urban beaches was also observed at different sites such as on the Baltic Sea coast [56], Morocco [66] and Senegal [67].…”

Section: Urbanmentioning

confidence: 53%

Abundance and Distribution of Cigarette Butts on Coastal Environments: Examples from Southern Spain

Asensio-Montesinos

Ramírez

Aguilar-Torrelo

et al. 2021

JMSE

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Litter on beaches is one of the most difficult problems in coastal management and every year, much efforts and public money are invested to try to alleviate and solve the problem. Cigarette butts (CB) are among the most widespread abandoned personal items in the world. In Spain, they are found on all types of beaches, where they are discarded by beach users; however, rivers and streams can also deposit CB on shores. This paper analyses the abundance of CB on different beaches in Southern Spain in order to address and better understand this relevant environmental problem and propose sound solutions to decrease or eliminate their presence. The main factors favouring CB accumulation were identified, namely the seasonality and number of beach users, beach typology (remote, rural, village or urban sites), type of beach sediment and methods and frequency of cleaning operations. Mean and median CB abundance values per 100 m of beach length, calculated from all the data used in this study, were 159 and 68 items, respectively. The largest number of CB were observed at urban sites, followed by village, rural and remote beaches. Further, sand beaches registered higher values of CB than cobble or pebble beaches.

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Section: Urbanmentioning

confidence: 53%

Abundance and Distribution of Cigarette Butts on Coastal Environments: Examples from Southern Spain

Asensio-Montesinos

Ramírez

Aguilar-Torrelo

et al. 2021

JMSE

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“…On the Senegal beach, plastic accounted for 98% of waste. Densities at a depth of 10 cm were 25 times higher than on the surface, with a significant density difference observed between urban and rural settings (Tavares et al, 2020). In Guinea Bissau, untreated urban sewers in the central part of the capital are discharged directly into the river.…”

Section: Pollution and Ecosystem Healthmentioning

confidence: 97%

“…Plastic debris is the type of land-based pollution that most noticeably affects the ocean and its organisms (Jambeck et al, 2018). However, country-level data for plastic debris pollution entering the ocean in West Africa remain limited (Tavares et al, 2020). Along the beach of Cabo Verde, marine litter also poses challenges to marine wildlife conservation as well as to human health and well-being (Fernandes, 2019).…”

Section: Pollution and Ecosystem Healthmentioning

confidence: 99%

Diagnostic analysis of the Canary Current System of West Africa: the need for a paradigm shift to proactive natural resource management

Osemwegie,

Delgado,

Arimiyaw

et al. 2021

Ocean Coast. Res.

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Large exports of land-based contaminants to the ocean exacerbate the effects of climate change, pollute ocean waters, disrupt biogeochemical cycles, harm marine organisms, and consequently jeopardise food security and the livelihoods of ocean-dependent communities. The Canary Current Large Marine Ecosystem (CCLME) is characterised by a mix of the Atlantic Ocean basin waters, reverse flow from the Mediterranean Sea, and inland waters from adjacent countries. This biodiversityrich ecosystem is a source of ecosystem goods and services that provide sustenance for populations in the coastal states of West Africa and beyond. However, with the ocean surface warming, ocean productivity and fisheries' outputs have declined across multiple trophic levels. Therefore, in this diagnostic study based on a systematic literature review (publications from 2009 to 2020), we (a) provide an integrative assessment of the CCLME with the exception of Morocco, in the context of the modular large marine ecosystem framework using the categories 'environmental' (productivity, fish and fisheries, pollution, and ecosystem health) and 'non-environmental' (socioeconomic and governance), and (b) identify knowledge gaps and data scarce regions. The key drivers of change in the CCLME were identified as fishing pressure, land-based pollution, coastal habitat loss, and climate change. Productivity, land-based pollution, and ecosystem health were priority areas for data collection in the CCLME, with data deficiencies particularly apparent in The Gambia and Guinea. Therefore, to mitigate further degradation and accelerate progress toward sustainable management of the CCLME, research should be conducted in these priority areas of data deficiency. Furthermore, as most drivers of change in this ecosystem are related to weak management and a lack of regulatory enforcement, we recommend effective implementation, monitoring, and enforcement of existing national and transboundary regulations, as well as ecosystem-based human-centred management approaches, as proactive strategies for decoupling anthropogenic disturbances from climate change and optimising the productivity of the CCLME.

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“…Moreover, the microplastics on beaches can also introduce toxic chemical substances to reduce system functions linked to health and biodiversity [48,49]. Furthermore, the combination of high levels of ultraviolet (UV) radiation and mechanical abrasion makes marine beaches hotspots for microplastic formation [50,51], and once macroplastics break down into microplastics, they are much more difficult to manage [51]. The empirical data for macroplastics was less robust than for micro-plastics [52].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Distribution, Composition, and Inventory of Plastic Debris on the Yugang Park Beach in Zhanjiang Bay, South China Sea

Zhang

Wei

Zhang

et al. 2022

IJERPH

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Plastic debris contamination in marine environments is a global problem that poses a considerable threat to the sustainability and health of coastal ecosystems. Marine beaches, as the key zones where terrestrial plastic debris reach coastal waters, are faced with the increasing pressures of human activities. In this study, we explored the distribution, composition, and inventory of plastic debris over seasonal and tidal zones at the Yugang Park Beach (YPB) in Zhanjiang Bay, South China Sea, to provide a baseline for plastic debris on a marine beach. The results showed mean abundance of plastic debris in summer (6.00 ± 2.10 items/m2) was significantly greater than that in winter (3.75 ± 2.12 items/m2). In addition, the composition of plastic debris ranged in size mainly from 1 to 5 mm and 0.5 to 2.5 cm in winter and summer, respectively. In terms of composition, white plastic debris was the most common (81.1%), and foam was the most abundant (64.4%). Moreover, there was a significant relationship between the abundance of plastic debris and sand grain size fraction (p < 0.05), implying the abundances of microplastic debris were more easily impacted by sand grain size (>2 mm). In total inventory, there were about 1.18 × 105 and 2.95 × 105 items of plastic debris on the YPB in winter and summer, respectively. The tidal variation and human activities are responsible for the plastic debris accumulation. This study provided a method to quantify the inventory of plastic debris on a beach and could be helpful to consider regional tidal variations and critical source areas for effective plastic debris clean-up.

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Density and composition of surface and buried plastic debris in beaches of Senegal

Cited by 34 publications

References 75 publications

Abundance and Distribution of Cigarette Butts on Coastal Environments: Examples from Southern Spain

Abundance and Distribution of Cigarette Butts on Coastal Environments: Examples from Southern Spain

Diagnostic analysis of the Canary Current System of West Africa: the need for a paradigm shift to proactive natural resource management

Seasonal Distribution, Composition, and Inventory of Plastic Debris on the Yugang Park Beach in Zhanjiang Bay, South China Sea

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