Results 101 to 110 of about 31,974 (218)

Determination of Some Polychlorinated Biphenyls in River Tigris within Baghdad City

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
A number of aqueous samples were collected from river Tigris in Baghdad city, enriched ~1000 times using solid phase extraction (SPE), then extracted the trace concentrations of some polychlorinated biphenyls (PCB) using an aqueous two-phase system ...
Khalid Waleed Salih Al-Janabi
doaj  

Cyanogenic Compounds, Physicochemical Parameters and Metals in Water From Cassava Processing Areas: A Study in the Brazilian Amazon, Using Multivariate Analysis

Environmental Toxicology, EarlyView.
ABSTRACT This study evaluated the water quality of artesian wells and effluents generated in cassava processing in a rural area of Bragança, Pará, with emphasis on physicochemical parameters, multielement composition, and cyanogenic compounds. The well water presented specific nonconformities, highlighting pH values below the recommended level and high
Alana Coêlho Maciel, Mariane Gama Nabiça, Luciana Pinheiro Santos, Thiago de Melo e Silva, Elivaldo Nunes Modesto Junior, Heronides Adonias Dantas Filho, Charles Miller de Souza Borges, Kelly das Graças Fernandes Dantas, Simone de Fátima Pinheiro Pereira, Ivan Carlos da Costa Barbosa, Beni Jequicene Mussengue Chaúque, Rosinelson da Silva Pena, Nayara Macêdo Peixoto Araújo, Alessandra Santos Lopes   +13 more
wiley   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

Environmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves, Priscila M. O. Muniz Cunha, Shênia Patrícia Corrêa Novo, Lorena Oliveira Souza Soares, Tatiana Dillenburg Saint‐Pierre, Fábio Veríssimo Correia, André Luís de Sá Salomão, Rachel Ann Hauser‐Davis, Enrico Mendes Saggioro   +8 more
wiley   +1 more source

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

Environmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão, Igor Romeiro dos Santos, Jerônimo Raimundo de Oliveira Neto, Flávio Olimpio Sanches Neto, Felipe Cirqueira Dias, Jéssyca Moreira Morais, Lorranny Pereira de Assis Valadares, Naiara Raica Lopes de Oliveira, Mirelle Garcia Silva Bailão, Luiz Carlos da Cunha, Valter Henrique Carvalho‐Silva, Thiago Lopes Rocha, Elisa Flávia Luiz Cardoso Bailão   +12 more
wiley   +1 more source

An Exercise‐Pollution Exposure Index for Assessing Inhaled Heavy Metal Exposure Along Urban Walking Routes

Environmental Toxicology, EarlyView.
ABSTRACT Urban walking routes are promoted as health‐supportive environments, yet they may also act as microenvironments of pollutant exposure during physical activity. This study evaluated heavy metal exposure along urban walking routes by integrating road dust metal concentrations, conventional health risk assessment, deposited inhalation dose, and ...
Berfin Sever, Hülya Aykaç Özen, Nurgül Yiğit Dönmez   +2 more
wiley   +1 more source

Exposure to Structurally Related Organophosphate Esters Elicits Distinct Metabolomic Perturbations in Daphnia magna

Environmental Toxicology, EarlyView.
ABSTRACT Organophosphate esters (OPEs) are found ubiquitously in the environment and exposure to these chemicals has induced behavioral, developmental, and morphological impairments in several model organisms. Yet there is still a lack of understanding of how sub‐lethal exposure disrupts organism function at the molecular‐level, especially for Daphnia ...
Salwa Hajir, Sanam Yousifie, Karl J. Jobst, André J. Simpson, Myrna J. Simpson   +4 more
wiley   +1 more source

Wildfire Ash Alters Freshwater Crustacean Behavior: Disentangling the Contributions of Suspended Macroparticles and Ash‐Induced Alkalinization

Environmental Toxicology, EarlyView.
ABSTRACT Climate change and anthropogenic ignitions are intensifying wildfire frequency worldwide, elevating the risk of freshwater contamination by ash. In water, dissolved ash releases ions and other toxic constituents that increase pH and alter physicochemical conditions, while suspended ash particles may impose mechanical stress, disrupt behavior ...
Pétterson B. Pereira‐Silva, Diogo R. Pacheco, Gustavo Kirsch, Ronnilda M. G. Araujo, Bianca V. C. Oscar, William G. Matias, Sandro Santos, Bruno R. S. Figueiredo   +7 more
wiley   +1 more source

A robust dilute-and-inject ion chromatography - Tandem mass spectrometry for urinary glyphosate quantification. [PDF]

MethodsX
Louyer MV, Jabalot C, David A, Mercier F.   +3 more
europepmc   +1 more source

Bioaccessibility of Metal(loid)s From Anthropogenic Contamination in Dry Riverbed Sediments in the Cartagena–La Unión Mining District (Murcia, SE Spain): Implications for Human Health Risk Assessment

Environmental Toxicology, EarlyView.
ABSTRACT This study assessed the contamination levels, bioaccessibility, and potential health risks of As, Cd, Cu, Pb, and Zn in sediments from three dry riverbeds (El Beal‐EB, Las Matildes‐LM, and Ponce‐PN) impacted by historical mining activities in the Cartagena‐La Unión Mining District.
José Gregorio Cuevas, Ángel Faz, Silvia Martínez‐Martínez, Juan Carlos Beltrá, Jacinto Martínez, José A. Acosta   +5 more
wiley   +1 more source

Development of a Dispersive µSPE Method for the Determination of Pesticide Residues in Water Samples by LC-MS/MS. [PDF]

Molecules
Pereira GD, de Souza IF, Floriano L, Prestes OD, Zanella R.   +4 more
europepmc   +1 more source