We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Plastic pollution in the Ganga river: sources, impacts, and sustainable mitigation strategies in the Himalayan regions
AI summary Read the abstract
Researchers reviewed plastic pollution dynamics in the Ganga River basin, finding that approximately 0.6 million tons of plastic enter the river annually, with microplastic concentrations reaching 40 to 100 particles per liter in tributaries and contributing to a 25% decline in Gangetic dolphin populations over the past decade.
The Ganga River, a critical lifeline for over 400 million people in South Asia, faces severe plastic pollution, with an estimated 0.6 million tons of plastic waste entering its waters annually. This review comprehensively examines the dynamics of plastic pollution in the Ganga basin, focusing on the upper and lower Himalayan regions. It identifies key sources, including tourism-driven waste in the upper Himalayas and urban contributions (70% of the plastic load) in the lower regions, alongside microplastic concentrations ranging from 40 to 100 particles per liter in tributaries like the Alaknanda and Song. Emerging contaminants such as phthalates (10–15 µg/L), heavy metals (lead: 5–10 µg/g), and microbial pathogens (E. coli: 105 CFU/cm2) exacerbate ecological risks, with 60% of fish species ingesting microplastics and the Gangetic dolphin experiencing a 25% population decline over the past decade. Human health impacts include a 10% higher incidence of reproductive issues and over 5000 annual waterborne disease cases, while socioeconomic consequences involve a 20% fisheries decline and $10 million annual cleanup costs in cities like Kanpur. Challenges in assessment, such as inconsistent microplastic sampling and low waste treatment rates (30%), are compounded by weak regulatory enforcement (20% compliance). The review proposes integrated mitigation strategies, including policy reforms like strengthening India’s 2022 single-use plastic ban (targeting 50% waste reduction by 2025), research priorities such as standardizing microplastic protocols, and sustainable practices like biodegradable plastics (60% reduction potential) and waste-to-energy systems (80% efficiency). These recommendations aim to ensure the Ganga’s long-term sustainability, offering a model for addressing plastic pollution in other river systems globally.
More Papers Like This
cxsPlastic Footprints in Sacred Waters: Assessing Microplastic Presence in the Himalayan Ganga River Ecosystem
AI summary Read the abstract
Researchers detected microplastics throughout the Ganga River ecosystem in the Himalayas, documenting contamination in a water system considered sacred and relied upon by hundreds of millions of people. The findings underscore that even remote, culturally significant waterways are not insulated from global plastic pollution, with implications for drinking water safety and aquatic biodiversity.
Microplastics pollution in the rivers, its source, and impact on aquatic life: a review
AI summary Read the abstract
Researchers reviewed global evidence of microplastic contamination in rivers and lakes, finding that plastic particles serve as carriers for toxic chemicals, harm aquatic life through ingestion and entanglement, and enter human food and water supplies, while also exploring plant-based plastic alternatives that could reduce future pollution.
Assessment of Microplastic Contamination in the Surface water of the Bagmati River, Kathmandu Valley
AI summary Read the abstract
Researchers assessed microplastic contamination across 15 sites along the Bagmati River in Nepal's Kathmandu Valley, finding concentrations up to 129 MP per liter with fibers (94%) and polyethylene dominating, and significantly higher concentrations in midstream and downstream zones influenced by urban wastewater and solid waste.
Microplastics pollution in water and sediment matrices of the old Brahmaputra River, bangladesh: an ecological risk appraisal of an urban river
AI summary Read the abstract
Seasonal sampling of surface water and sediment in the Old Brahmaputra River, Bangladesh found microplastic concentrations highest in winter (over 4 million items/km² in water), dominated by polypropylene fibers and fragments, with a Pollution Load Index indicating low but measurable ecological risk. The study provides baseline contamination data for an ecologically important South Asian urban river, establishing a foundation for monitoring and policy responses in a region with rapidly growing plastic use.
Distribution and characterization of microplastics present in the water and sediments of River Gomti, India
AI summary Read the abstract
The first microplastic distribution study of the Gomti River in Lucknow, India found concentrations up to 82 particles/100 L in water and 116 particles/100 g in sediment, with fragments, fibers, films, and granules confirmed by FTIR, SEM, and EDS analysis. The findings establish baseline contamination data for an understudied South Asian river system, highlighting freshwater microplastic pollution as a growing public health concern in rapidly urbanizing regions.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.