Aug 2026· The Voice of Creative Research· Vol 8, pp. 6-13· 0 citations· 9 references
Abstract
Uncontrolled discharge and environmental percolation of industrial agrochemical waste generate complex toxic leachates that degrade aquatic ecosystems. This investigation utilized the hardy air-breathing teleost Channa punctatus as a bio-indicator to evaluate the acute toxicity and neurobehavioral impact of pesticide manufacturing waste leachate. Utilizing static acute bioassay methods (APHA/USEPA), fish were subjected to exposure concentrations of 5.0%, 7.5%, 10.0%, 12.5%, 15.0%, 20.0%, and 25.0% alongside parallel controls over 96 hours. The calculated 96-hour LC50 was determined to be 12.5%. Qualitative behavioural profiling revealed progressive neurotoxic stress, manifested by hyperventilation (increased opercular frequency), heightened surfacing activity to gulp air, hyperexcitability, erratic swimming, loss of motor control, and body discoloration. Complete mortality (100%) was recorded within 96 hours at concentrations ≥ 20%. These biological outcomes highlight the vulnerability of native teleost species to landfill leachates and underscore the imperative for stringent environmental compliance regarding hazardous waste disposal.
Background: Cadmium (Cd) is a persistent, non-essential heavy metal that enters aquatic ecosystems through industrial, agricultural, and urban effluents, posing a severe threat to freshwater fish. Channa gachua (Hamilton), a facultative air-breathing snakehead widely distributed across South and Southeast Asian wetland...
Ashish Ranjan, Ranjana· Uttar Pradesh Journal of Zoo...· 0 citations
Quantitative behavioural assessment revealed concentration-dependent and time-dependent patterns of neurotoxic impairment at concentrations overlapping with those reported in agricultural runoff, emphasising the importance of extended bioassay protocols incorporating behavioural endpoints for ecologically realistic ris...
Shital Jagannath Salunke, J. D. Vasait· International journal of res...· 0 citations
The continuous expansion of the pharmaceutical sector has intensified aquatic contamination, as persistent active compounds enter water bodies through urban, industrial, and agricultural runoff. Among these contaminants, sulfamethoxazole (SMX)-a widely used sulphonamide antibiotic-raises ecological concerns due to its...
Ştefania Gheorghe, Catalina Stoica, Laura Feodorov et al.· Aquatic Toxicology· 0 citations
Combined exposure to bifenthrin–chlorpyrifos and bifenthrin–endosulfan mixtures induces pronounced oxidative stress and genotoxic damage in C. catla and L. rohita, highlighting the usefulness of antioxidant and DNA damage biomarkers for monitoring pesticide contamination in aquatic environments.
H. Naz, S. Abdullah, T. Ahmed et al.· Veterinary Medicine and Scie...· 0 citations
The Ipojuca River in northeastern Brazil receives untreated domestic, industrial, and agro-industrial effluents along its course, yet the sublethal effects of this complex mixture on aquatic vertebrates remain poorly characterized. This study evaluated surface water quality across nine sites spanning intermittent to pe...
C. F. Mariz, Maria Gabriella Neri Cavalcanti, Maria Karolaine de Melo Alves et al.· Environmental Pollution· 0 citations
Chemical pollution from industrial, agricultural, and urban activities represents a major threat to freshwater ecosystems and aquatic organisms. This study evaluated hepatic biomarker responses in Oreochromis niloticus (Nile tilapia) maintained under chronic environmental exposure to water from the Iguaçu River, one of...
L. Bavia, Rayanne Seibel Littig, M. Santana et al.· Journal of Xenobiotics· 0 citations
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