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Persistent Organic Pollutants in Whale Shark (Rhincodon typus) Skin Biopsies from Bah ía de Los Ángeles, Mexico
This study is the first report of PAH levels in R. typus for the Gulf of California and Mexico.PMID:38141110 | DOI:10.1007/s00128-023-03841-2 (Source: Bulletin of Environmental Contamination and Toxicology)
Source: Bulletin of Environmental Contamination and Toxicology - December 23, 2023 Category: Environmental Health Authors: Stephanie Itzel Villag ómez-Vélez Elsa Nore ña-Barroso Felipe Galv án-Magaña Rogelio Gonz ález-Armas Gabriela Rodr íguez-Fuentes Ana Judith Marmolejo-Rodr íguez Source Type: research

Pressmud Subdue Phytoremediation Indices in Lead-Contaminated Soils: A Human Health Perspective
In this study, graded levels of pressmud (0, 2.5, 5, 10 g/kg) were applied on lead imposed soil with different contamination levels (0, 100, 150, 300 mg/kg) and metal dynamics was studied in spinach crop. Experimental results showed that the addition of pressmud upto 10 mg/kg had decreased different phytoremediation indices in spinach crop. Whereas, increasing Pb level enhanced the indices' values, indicating accumulation of significant amount of Pb in spinach biomass. However, application of pressmud (upto 10 mg/kg) reduced the bioconcentration factor (BCF) from 0.182 to 0.136, transfer factor (TF) from 0.221 to 0.191, tr...
Source: Bulletin of Environmental Contamination and Toxicology - December 21, 2023 Category: Environmental Health Authors: M L Dotaniya M C Nagar Amita Sharma C K Dotaniya R K Doutaniya Source Type: research

Effects of Lead (Pb) from Smelter Operations in an Urban Terrestrial Food Chain at a Colorado Superfund Site
Bull Environ Contam Toxicol. 2023 Dec 21;112(1):17. doi: 10.1007/s00128-023-03846-x.ABSTRACTLead (Pb) is ubiquitous in urban environments, and it is a risk factor for wildlife. But wildlife are particularly at risk for exposure near smelters in urban areas where higher than safe Pb levels in the soil have the potential to transfer to the food chain. Therefore, we investigated whether wildlife are at risk of Pb exposure and differences in Pb bioaccumulation in trophic levels at a Superfund site in an urban area of Colorado. We sampled soil, vegetation, arthropods, and birds at four sites: two contaminated sites (one at the ...
Source: Bulletin of Environmental Contamination and Toxicology - December 21, 2023 Category: Environmental Health Authors: Elizabeth K Peterson James Carsella Claire W Varian-Ramos Teyah Schiffer Sean Kyle Staples Moussa Diawara Source Type: research

Erythrocyte Recovery in Oreochromis niloticus Fish Exposed to Urban Effluents
Bull Environ Contam Toxicol. 2023 Dec 19;112(1):15. doi: 10.1007/s00128-023-03833-2.ABSTRACTUrban activities pollute aquatic ecosystems, and the integrity of organisms such as fish. The use of cytological techniques, such as the analysis of blood cellular integrity using the Micronucleus test, can help detect mutagenic damage as a result to urban effluents exposure. In this context, this study aimed to evaluate the frequency of micronucleus and other nuclear abnormalities in Oreochromis niloticus fish environmentally exposed to urban effluents in relation to their erythrocyte recovery capacity when exposed to clean water (...
Source: Bulletin of Environmental Contamination and Toxicology - December 19, 2023 Category: Environmental Health Authors: Nathan Pereira Lima Amorim Rhayane Alves de Assis Cirley Gomes Ara újo Dos Santos Marcelino Benvindo-Souza Rinneu Elias Borges Lia Raquel de Souza Santos Source Type: research

Long-Range Atmospheric Mercury Transport from Across East Asia to a Suburban Coastal Area in Southern Vietnam
This study illustrated the influence of regional Hg emissions on local atmospheric Hg pollution and provided data to improve knowledge of the Hg biogeochemical cycle in SEA.PMID:38114799 | DOI:10.1007/s00128-023-03842-1 (Source: Bulletin of Environmental Contamination and Toxicology)
Source: Bulletin of Environmental Contamination and Toxicology - December 19, 2023 Category: Environmental Health Authors: Ly Sy Phu Nguyen To Thi Hien Source Type: research

Bioremediation of Diesel-Contaminated Soil by Fungal Solid-State Fermentation
This study provides theoretical support for the application of fungal remediation technology for diesel and improves understanding of microbiologically mediated diesel degradation and soil greenhouse gas emissions.PMID:38103073 | DOI:10.1007/s00128-023-03840-3 (Source: Bulletin of Environmental Contamination and Toxicology)
Source: Bulletin of Environmental Contamination and Toxicology - December 16, 2023 Category: Environmental Health Authors: Yuhong Bai Hong Liang Litao Wang Teng Tang Ying Li Lang Cheng Dawen Gao Source Type: research

Transcriptional Response of Vitellogenin Gene in Flatfish to Environmental Pollutants from Two Regions of the Gulf of Mexico
Bull Environ Contam Toxicol. 2023 Dec 13;112(1):11. doi: 10.1007/s00128-023-03825-2.ABSTRACTThe present study evaluates the endocrine effect in flatfish through vitellogenin (vtg) gene expression and its association with pollutants data obtained from fish muscle and sediment from two regions in the Gulf of Mexico (GoM): Perdido Fold Belt (northwestern) and the Yucatan Peninsula (southeast). The results revealed induction of vtg in male flatfish in both geographical regions with different levels and patterns of distribution per oceanographic campaign (OC). In the Perdido Fold Belt, vtg was observed in male fish during four ...
Source: Bulletin of Environmental Contamination and Toxicology - December 13, 2023 Category: Environmental Health Authors: Mayra A Ca ñizares-Martínez Mercedes A Quintanilla-Mena Flor Árcega-Cabrera Victor Ceja-Moreno Marcela Del R ío-García Sandy G Reyes-Solian Isajav Rivas-Reyes Rafael F Rivera-Bustamante Carlos A Puch-Hau Source Type: research

Accessing the Health Risk of Ingestion of Surface Water from Lucr écia and Parelhas Dams in Northeast Brazil Using the Sentinel Organism Drosophila melanogaster
This study investigated the genotoxic risk of chronic exposure of hemolymph's cells of Drosophila melanogaster (Insecta, Diptera) to water samples from Boqueirão de Parelhas Dam and from Lucrécia Dam in the semiarid region of Brazil. The dams are located over the Pegmatite Province of Borborema, with rocks rich in uranium and thorium. Water samples hydrated a culture medium composed of mashed potatoes, where larvae of D. melanogaster fed for 24 h, before be underwent to the Comet assay. The same water was evaluated for the presence of dissolved Radon gas (222Rn) and concentrations of 11 toxic metals (Ag, Al, Cd, Co, Cr, ...
Source: Bulletin of Environmental Contamination and Toxicology - December 13, 2023 Category: Environmental Health Authors: Charles do Nascimento-Silva Edson Francisco do Carmo-Neto Samuel Lima de Santana Erima Maria de Amorim Rafaela Alves de Oliveira Deric Soares de Amaral Matheus Andrade Rocha Costa Alesxandro Francisco do Nascimento Robson Alves Dos Santos Elvis Joacir De Source Type: research