Exposure of coastal environments to river-sourced plastic pollution

Harris, Peter T.; Westerveld, Levi; Nyberg, Björn; Maes, Thomas; Macmillan-Lawler, Miles; Appelquist, L.R.

doi:10.1016/j.scitotenv.2021.145222

Cited by 87 publications

(42 citation statements)

References 57 publications

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“…Indeed, the death of marine wildlife through accidental ingestion of plastic chemical substances brings potential loss to national income and substantially impacts the tourism industry [13]. For example, a pilot whale was found died in June 2018 at a water channel of Southern Thailand and border with Malaysia because it swallowed about 1.36kg of plastic bags [19]. Hence, the severity of marine littering by single-use plastic cannot be neglected by Malaysians.…”

Section: -Current Situations and Practices Of Single-use Plastic Reducing In Malaysiamentioning

confidence: 99%

Factors of Single Use Plastic Reduction Behavioral Intention

et al. 2021

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Malaysia had ranked as eighth over the top 20 countries with mismanaged plastic waste. The largest source of this issue was high consumption of single-use plastic by individuals. It is believed that, residents’ social behaviour played a significant role in reducing single-use plastic, which contributed to decreased plastic pollution. Therefore, this study investigates the factors that affect residents’ single-use plastic behavioural intention in Malaysia using the Theory of Planned Behaviour (TPB). A Quantitative study using survey questionnaire was employed and the total samples were 341 residents in Batu Pahat Johor. All of the data were analysed using regression analysis through Statistical Packages for the Social Sciences (SPSS) software. The results show a positive relationship between all variables except for environmental awareness and law and regulation. At the same time, the most influential factor affecting residents’ single-use plastic reducing behavioural intention was the attitude of residents against lower plastic consumption. Future studies were recommended to be conducted in urban areas which could obtain more desired outcomes. Thus, the findings from this research could provide useful and specific information for policy makers to implement effective strategies for protecting the environmental ecosystem in Malaysia. Doi: 10.28991/esj-2021-01275 Full Text: PDF

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Section: -Current Situations and Practices Of Single-use Plastic Reducing In Malaysiamentioning

confidence: 99%

Factors of Single Use Plastic Reduction Behavioral Intention

et al. 2021

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“…River-dominated coastal environments receive 52% of plastic pollution delivered by rivers and streams (Harris et al 2021). A wide range of pollutants including organic such polyaromatic hydrocarbons, polychlorinated biphenyls, dichlorodiphenyltrichloroethanes, antibiotics, dyes, oil etc.…”

Section: Introductionmentioning

confidence: 99%

In silico binding affinity analysis of microplastic compounds on PET hydrolase enzyme target of Ideonella sakaiensis

Duru

Enyoh

2021

Bull Natl Res Cent

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Background The world today is faced with the humongous challenge of removing the numerous plastic wastes in our environment. Efforts in the removal or remediation of these materials from the ecosystem are presently at the budding stage. Some researchers have shown that certain bacterial enzymes have the ability to hydrolyze and further degrade these plastic compounds. In this study, the ability of PET hydrolase enzyme to hydrolyze polyvinylchloride, polyurethane, polymethyl methacrylate, polyamide, polyethylene terephthalate, and polycarbonate was investigated in silico. Results The binding affinity values of polycarbonate (− 5.7 kcal/mol) and polyethylene terephthalate (− 5.2 kcal/mol) on the enzyme targets were the highest and showed that they are likely to be efficiently hydrolyzed by this bacteria in the environment. The binding affinity of polyvinylchloride was the lowest (− 2.2 kcal/mol) and suggested that it would show resistance to hydrolysis by the PET hydrolase enzyme. Conclusion The findings from this study showed that PET hydrolase enzyme from Ideonella sakaiensis could be efficient in the hydrolysis of plastic wastes composed mainly of polycarbonate and polyethylene terephthalate.

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“…It is known that different coastal environments have different plastic trapping efficiencies (Harris et al, 2021). As a result, the impact of littering is considered to be greater on the hard substrate whereby rocky bottoms retain more litter than soft bottoms (Melli et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

A Manipulative Field Experiment to Evaluate the Impact of Discarded Plastic Bags on Shallow Vegetated Benthic Communities

et al. 2022

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Coastal regions are biologically active areas with significant ecological and socioeconomic values. These regions are increasingly being affected by marine litter. The impact of macro-sized marine litter on biomass and net primary production of hard and soft bottom communities was investigated by using a manipulative field experiment. Plastic bags were used to mimic the disturbance caused by litter to benthic vegetation and fauna. The experiment was carried out on a soft substrate community dominated by sago pondweed Stuckenia pectinata (L.) Boerner and bladder wrack Fucus vesiculosus L. as a foundation species of a hard substrate. A rapid negative impact of the plastic bag cover on vegetation biomass of soft-bottom community was detected, while the impact on the biomass of hard bottom vegetation was non-significant. Plastic bag cover substantially reduced the net production rates of hard substrate species Fucus and the biomass of associated zoobenthos. The difference in net production rates of Stuckenia with and without plastic cover was negligible.

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Exposure of coastal environments to river-sourced plastic pollution

Cited by 87 publications

References 57 publications

Factors of Single Use Plastic Reduction Behavioral Intention

Factors of Single Use Plastic Reduction Behavioral Intention

In silico binding affinity analysis of microplastic compounds on PET hydrolase enzyme target of Ideonella sakaiensis

A Manipulative Field Experiment to Evaluate the Impact of Discarded Plastic Bags on Shallow Vegetated Benthic Communities

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