Microplastics are the emerging non-degradable pollutants in natural ecosystems. It impacts humans and wildlife, mainly aquatic species, by getting incorporated into the food chain due to their sizes (< 5 mm). Microplastics are common in the marine ecosystems but are also present in the freshwater ecosystems, such as in lakes, ponds, river basins, wetlands, or even in moist agricultural lands and groundwater. This paper focuses on the primary sources, detection, and quantification of microplastics in wetlands, both freshwater and coastal, based on research conducted worldwide. Fibers (thread), fragments, filaments, foams, and microbeads are common shapes of microplastics observed in wetland ecosystems. Microplastics pollution has been observed in wetlands with an abundance of up to 5531 particles m−3 and 6360 particles kg–1 in water and sediment samples, respectively. This study also discusses the recent progress in extraction, characterization, and quantification techniques in order to identify research gaps, such as the interaction of microplastic and heavy metals and organic compounds in the wetland ecosystem. Microplastics in size range of 0.12–9.5 mm have been reported in wetland biota. Furthermore, ecological concerns are identified in terms of threats and disturbances caused by microplastics to the freshwater organisms present in wetlands. Finally, it outlines the future scope, research gap, and potential solutions for microplastic pollution research in wetlands.
This paper characterizes the fungal and bacterial colonizers of 5 types of plastic films (High-Density Polyethylene, Low-Density Polyethylene, Polypropylene, Polystyrene, and Polyethylene Terephthalate) throughout a 242-day incubation in the south-eastern Mediterranean and relates them to the chemical changes observed on the surface of the samples via ATR-FTIR. Neither bacterial nor fungal community structures were related[…]
This paper provides insights into the sustainable alternatives that can replace conventional plastic mulches, such as biodegradable mulches made from natural fibers and biopolymers. The microscopic and FTIR analyses conducted during the study showed the degradation of the fibers from the mulches during the exposure time to a certain extent. The nonwoven mulches provide higher[…]
This paper investigates the degradation of biodegradable polybutylene adipate terephthalate/polylactic acid (PBAT/PLA) and traditional polyethylene (PE) plastic under two typical abiotic conditions: ultraviolet (UV) irradiation and mechanical abrasion (MA) for up to nine months. The quantitative analysis of the degradation products was carried out using membrane filtration and total organic carbon determination (MF-TOCD). The results[…]
This paper identifies technological innovation, policy formulation, advocacy and sensitization, and bioremediation as some of the approaches that are currently used for the mitigation of plastic pollution in Nigeria. This chapter also highlights the need to encourage, enhance, and disseminate scientific research on mitigating the harmful effects of plastic pollution in Nigeria. It concluded with[…]
This review provides insights into the sources of microplastics, the ecotoxicity of microplastics, and the impact microplastics have on aquatic and marine life, management, and bioremediation of microplastics. Policies and strategies adopted by the government to combat microplastic pollution are also discussed in this review. Microplastics tend to accumulate in many aquatic systems, contaminate them,[…]