Pollution characterization and multi-index ecological risk assessment of microplastics in urban rivers from a Chinese megacity

Journal of Hazardous Materials, Год журнала: 2024, Номер 480, С. 136145 - 136145

Опубликована: Окт. 11, 2024

Язык: Английский

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Microplastic Contamination in Agricultural Soils Across India: A Systematic Review of Studies and Research Gaps

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Фев. 4, 2025

Microplastic contamination in India has been extensively studied aquatic ecosystems, yet its implications for agricultural soils remain insufficiently addressed. This research paper bridges this gap by analyzing data from 73 studies published between 2020 and 2024, synthesizing findings on microplastic across diverse ecosystems assessing their potential impact land. While most focus microplastics beaches, rivers, lakes, ponds, only a limited number directly investigate soils, highlighting significant gap. Key sources identified include irrigation with polluted water, atmospheric deposition, industrial discharge, inadequate waste management, practices such as plastic mulch use. In Northern India, extensive networks sourcing water the Ganga, Yamuna, Sutlej rivers pose risks of infiltration into farmland. Western experiences high due to effluents, urban waste, practices. Southern Eastern coastal regions face marine estuarine pollution, potentially affecting soil crop health. Additionally, Northeastern shows threats microplastic-laden bodies deposition near lands. The review underscores urgent need standardized methodologies, comprehensive sampling, targeted pathways ecosystems. By identifying high-risk zones knowledge gaps, study provides foundation future aimed at mitigating growing threat pollution India’s sector. Addressing these challenges is crucial ensuring health, food security, environmental sustainability.

Язык: Английский

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Microplastics, their effects on ecosystems, and general strategies for mitigation of microplastics: A review of recent developments, challenges, and future prospects

Environmental Pollution and Management, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

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A Method for the Extraction and Analysis of Microplastics from Tropical Agricultural Soils in Southeastern Brazil

Soil Systems, Год журнала: 2025, Номер 9(2), С. 34 - 34

Опубликована: Апрель 11, 2025

Microplastics (MP) are widespread pollutants that pose a risk to soil ecosystems globally, especially in agricultural soils. This study introduces method extract and identify MP Brazilian tropical soils, targeting debris of low-density polyethylene (LDPE) polyvinyl chloride (PVC) polymers, commonly present settings. The involves removing organic matter extracting using density separation with three flotation solutions: distilled water, NaCl, ZnCl2. Extracted then analyzed through optical microscopy Fourier transform infrared spectroscopy. removal efficiency ranged from 46% 89%, depending on the initial content soil. Recovery rates for LDPE 81.0% 98.8%, while PVC samples showed range 59.7% 75.2%. Finally, this methodology was tested four raw (i.e., without any polymer enrichment) values found were 2517.5, 2245.0, 3867.5, 1725.0 items kg−1, ferralsol, nitisol, gleysol, cambisol samples, respectively, having diverse shapes including fragments, granules, films, fibers. approach lays groundwork future studies behavior

Язык: Английский

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Advancing the Understanding of Microplastic Weathering: Insights from a Novel Polarized Light Scattering Approach

Environmental Science & Technology, Год журнала: 2024, Номер 58(42), С. 19004 - 19015

Опубликована: Окт. 10, 2024

Weathering is a significant process that alters the properties of microplastics (MPs) and consequently affects their environmental behaviors. In this study, we introduced novel approach based on polarized light scattering technique, which offers advantages in terms rapid, high-throughput, submicron-sized detection. This technique was successfully applied to characterize weathered MPs after 180-day laboratory simulation coastal environments. By employing polarization measurements, obtained 46-dimensional matrix data set for MP fragments subsequently processed them using backpropagation neural network. The successful extraction effective pulses confirmed presence within size range 0.2-60 μm, yielding total accuracies classification ranging from 78.9 86.9%. Furthermore, achieved an overall accuracy 93.8% classifying with different weathering degrees polymer types, revealing parameters associated morphological changes play dominant role characterizing MPs. Compared conventional approaches, holds great promise accurate characterization small sizes. findings study provided new insights into how change long-term aquatic

Язык: Английский

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Assessment of anthropogenic particles in Holothuria sanctori from Tenerife (Canary Islands, Spain)

Marine Pollution Bulletin, Год журнала: 2024, Номер 208, С. 117013 - 117013

Опубликована: Сен. 24, 2024

Язык: Английский

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