Publications by authors named "G K Darbha"

Over the last decades, the release and occurrence of organic pollutants in aquatic systems have become a major global concern due to their bioaccumulation, toxicity, and adverse effects on the ecosystem. Tetracycline (TC), a widely used antibiotic, is often found at high concentrations in the aqueous environment and tends to bind with the natural colloids. Post-COVID-19 pandemic, the release of surfactants in the environment has increased due to the excessive use of washing and cleaning products.

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Persistent microplastics (MPs) accumulation in the aqueous environments is considered a threat to the ecosystem, potentially harming aquatic species and human health. In view of the escalating problem of MPs pollution in India, a comprehensive investigation of MPs accumulation in major riverine systems is necessary. The current study aims to estimate MPs abundance in surface water, sediment, and fish samples along the entire stretch of Godavari, the largest river in peninsular India.

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Article Synopsis
  • - This study examined how Tire-wear particles (TWPs) interact with Zinc-Oxide nanoparticles (ZNPs) and their combined effects on the microalgae Chlorella vulgaris, particularly when combined with Humics.
  • - Results showed that higher concentrations of TWPs and ZNPs negatively impacted the growth and health of Chlorella vulgaris, causing oxidative stress, reduced chlorophyll levels, and cell membrane damage.
  • - Analysis indicated a synergistic toxic effect when TWPs and ZNPs were present together, demonstrating increased reactive oxygen species (ROS) production and confirming the need for further understanding of these contaminants' interactions in aquatic environments.
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This study investigates sediment samples from the Indian Sundarbans' mangrove habitat, where most samples were alkaline and hypersaline, except for one acidic sample. Elemental analysis revealed poor sediment quality, with elevated Enrichment Factors (2.20-9.

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Microplastic (MP) pollution has engulfed global aquatic systems, and the concerns about microplastic translocation and bioaccumulation in fish and other aquatic organisms are now an unpleasant truth. In the past few years, MP pollution in freshwater systems, particularly rivers and subsequently in freshwater organisms, especially in fish, has caught the attention of researchers. Rivers provide livelihood to approximately 40 % of the global population through food and potable water.

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