We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Microplastics in surface water from a mighty subtropical estuary: First observations on occurrence, characterization, and contamination assessment
AI summary Read the abstract
Researchers documented the first observations of microplastic contamination in surface waters of the Meghna estuary in Bangladesh, finding widespread pollution that poses risks to this ecologically and economically critical subtropical ecosystem.
Estuarine contamination by Microplastics (MPs) is a mater of serious concern since these areas offer the society valuable ecosystem, economic, and recreational services such as breeding and feeding ground for fish, carbon fixation, nutrients recycling and port development. The Meghna estuary, located along the Bengal delta coast, provides livelihoods for thousands of peoples in Bangladesh, and served as breeding ground for national fish, Hilsha shad. Therefore, knowledge and understanding on any kind of pollution including MPs of this estuary is essential. In this study, the abundance, characteristics and contamination assessment of MPs from the surface water of a Meghna estuary were investigated for the first time. The results demonstrated that MPs were present in all samples and the abundance ranged from 33.33 to 316.67 item/m3 with a mean value of 128.89 ± 67.94 item/m3. Morphological analyses resulted in four types of MPs such as fibers (87%), fragments (6%), foam (4%), and films (3%) with the majority of these being colored (62%) and smaller (<0.5 mm) in size (88%). On the other hand, FTIR analysis for chemical characteristics confirmed five types of polymers, including polythene (PE), polystyrene (PS), polythene terephthalate (PET), polypropylene (PP), and polyvinyl chloride (PVC). The area was determined to be moderately to severely contaminated with MPs based on contamination factor (CF) values (6.18 ± 2.08 to 2.50 ± 1.0) and the pollutant load index (PLI) value (1.94 ± 0.33) as these values were > 3-6 for CF, and >1 for PLI. These results can be utilized to develop policy for the protection of this important environment.
More Papers Like This
Quantification, characterization and risk assessment of microplastics from five major estuaries along the northern Bay of Bengal coast
AI summary Read the abstract
Researchers measured microplastic pollution in five major estuaries along the Bay of Bengal coast in Bangladesh and found contamination at every site, with polyethylene being the most common plastic type. The rivers were classified at the most severe hazard level for microplastic contamination based on the types of polymers found. Since these estuaries supply water and fish to millions of people, the contamination raises concerns about human exposure through drinking water and seafood.
Unveiling the microplastic crisis: Insights into Bangladesh's aquatic ecosystems - origins, impact, and solutions
AI summary Read the abstract
This review examines the growing microplastic crisis in Bangladesh's rivers, estuaries, and coastal waters, finding that the country's rapid urbanization and limited waste management have led to widespread contamination. Microplastics were documented in water, sediment, and fish across multiple Bangladeshi water systems. Since over 160 million people in Bangladesh depend on these water resources for drinking, farming, and fishing, the contamination poses a significant public health concern.
Distribution of microplastics in shoreline water and sediment of the Ganges River Basin to Meghna Estuary in Bangladesh
AI summary Read the abstract
Researchers measured microplastic contamination along the Ganges River from the India-Bangladesh border to the Meghna Estuary in Bangladesh. They found microplastics at every sampling point, with higher concentrations downstream, indicating pollution accumulates as the river flows through populated areas. The overall pollution level was rated higher than other studies in Bangladesh, raising concerns for the millions of people who depend on this water.
Microplastics pollution in the river Karnaphuli: a preliminary study on a tidal confluence river in the southeast coast of Bangladesh
AI summary Read the abstract
Researchers found high concentrations of microplastics in the surface water and sediments of Bangladesh's Karnaphuli River, with downstream areas showing the greatest abundance, fibers as the dominant type, and polyethylene terephthalate as the most common polymer.
Extent and distribution of microplastic contamination in the benthic sediment of Turag river in Bangladesh
AI summary Read the abstract
Researchers quantified microplastic contamination in benthic sediments of the Turag River in Bangladesh, finding widespread microplastic accumulation that poses threats to benthic communities and highlights a significant knowledge gap in freshwater sediment microplastic studies.
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.