Effect of plastic film mulching on the distribution of plastic residues in agricultural fields

M, Vinoth Kumar; A, Merline Sheela

doi:10.1016/j.chemosphere.2020.128590

Cited by 59 publications

(18 citation statements)

References 56 publications

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“…5). Previous studies suggested that when plastics are exposed to factors such as temperature, radiation, and moisture content, they are broken into small particles [71]. The investigation of our finding is in agreement with the findings of Don et al [72].…”

Section: Mps In Adyar Estuarysupporting

confidence: 94%

Occurrence of Coliforms in Microplastic Associated Biofilm in Estuarine Ecosystem

Dharmaraj¹,

Appavoo²

2022

Pol. J. Environ. Stud.

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Coliforms and microplastic pollution are major issues prevailing in the estuarine ecosystem. At present, the Adyar river in Chennai, Tamil Nadu is under threat due to sewage disposal and solid waste dumping. In the present investigation surface water samples were collected from five sampling locations and analyzed for coliforms, microplastics (MPs), and the development of biofilm. The maximum coliform population of 75±6-228±12 MPN/100mL was observed during the pre-monsoon period. The MP content was in the range of 90-230 particles /L, 70-210 particles/L, and 90-190 particles/L for pre-monsoon, post-monsoon, and summer seasons respectively. The development of black crystalline colonies on Congo Red Agar (CRA) medium explained the occurrence of biofilm in the study area. Further, biofilm formation was higher during summer when compared with that of pre-monsoon and post-monsoon seasons. The plastic particles collected from the sampling locations were having rough surfaces. More bacterial colonies were observed on polyethylene (PE) MPs when compared with that of polyamide (PA) and Nylon under laboratory conditions.

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Section: Mps In Adyar Estuarysupporting

confidence: 94%

Occurrence of Coliforms in Microplastic Associated Biofilm in Estuarine Ecosystem

Dharmaraj¹,

Appavoo²

2022

Pol. J. Environ. Stud.

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“…The experiments reported here used spherical, compact microbeads. Microbeads can be present in soils as a result of treatments such as the application of biosolids for fertilization , but are not as common as films derived from plastic film mulching or fibers from long distance atmospheric fallout. ,, For mineral particles, processes of entrainment, transport, and interaction are known to vary with particle shape, and because the same will be true for microplastic particles, the abrasion processes reported here are only expected to be directly relevant to compact microplastics. Microplastic fibers and fragments can exhibit weathering and wear patterns similar to those reported here, including the attachment of small mineral particles to the polymer surface, and further controlled experiments are required to determine how rapidly such features develop on microplastics of different shapes during aeolian abrasion.…”

Section: Resultsmentioning

confidence: 97%

Breakdown and Modification of Microplastic Beads by Aeolian Abrasion

Bullard

Zhou

Davis

et al. 2022

Environ. Sci. Technol.

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Saltation is an important wind erosion process that can cause the modification and breakdown of particles by aeolian abrasion. It is recognized that microplastic particles can be transported by wind, but the effect of saltation on microplastic properties is unknown. This study examined the impact of simulated saltation alongside quartz grains on the size, shape, and surface properties of spherical microplastic beads. The diameter of the microplastics was reduced by 30–50% over 240–300 h of abrasion with a mass loss of c. 80%. For abrasion periods up to 200 h, the microplastic beads remained spherical with minimal change to overall shape. Over 95% of the fragments of plastic removed from the surface of the microbeads during the abrasion process had a diameter of ≤10 μm. In addition, during the abrasion process, fine particles derived from breakdown of the quartz grains became attached to the surfaces of the microbeads resulting in a reduction in carbon and an increase in silicon detected on the particle surface. The results suggest that microplastics may be mechanically broken down during aeolian saltation and small fragments produced have the potential for long distance transport as well as being within the size range for human respiration.

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“…Plastics enter the environment primarily as a result of human activity [57,58]. The important sources of plastic pollution are agricultural mulching [59], sewage sludge disposal [60], wastewater treatment plants [61], informal landfills [62], and biowaste compost [63]. MPs are found in a variety of terrestrial environments, including home and garden soils [64], flood plain soils [65], remote high mountain soils [66], and industrial soils [67], as well as surface and deep ocean waters [68], lakes [69,70], mangroves [71], shorelines [72], and estuaries [73][74][75].…”

Section: Microplastic Pollution In Estuariesmentioning

confidence: 99%

Prevalence of microplastics, antibiotic resistant genes and microplastic associated biofilms in estuary - A review

Dhinagaran

2022

Environmental Engineering Research

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The estuarine ecosystem is under threat due to the addition of different anthropogenic pollutants. Among the various pollutants, microplastics(MPs), and antibiotics play a significant role in affecting estuarine organisms and human health by transport through the food chain. In the estuaries, microorganisms, including pathogens, colonise microplastics by the development of biofilms. Estuaries have long been home to MPs, served as novel hubs for the transmission of Antibiotic Resistance Genes (ARGs). As a result of their continual interactions with a variety of aquatic creatures, MP-associated bacterial communities will eventually present a transfer opportunity to organisms that consume MPs. To comprehend the presence of microplastics and ARGs in the estuaries, a thorough review is necessary. This review discusses the various sources of MPs and antibiotic pollution, as well as the transport of ARGs via biofilm formed on MPs. Furthermore, the factors affecting biofilm formation in estuaries are reviewed. In addition, the transport of ARGs by microbial populations within biofilm is discussed. The ARGs are transported into the food chain, which will be a threat to human health. Hence, the occurrence of antibiotic-resistant genes in fish is discussed.

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Effect of plastic film mulching on the distribution of plastic residues in agricultural fields

Cited by 59 publications

References 56 publications

Occurrence of Coliforms in Microplastic Associated Biofilm in Estuarine Ecosystem

Occurrence of Coliforms in Microplastic Associated Biofilm in Estuarine Ecosystem

Breakdown and Modification of Microplastic Beads by Aeolian Abrasion

Prevalence of microplastics, antibiotic resistant genes and microplastic associated biofilms in estuary - A review

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