Results 21 to 30 of about 694 (131)

Degradación de bromacil mediante la cepa IT-01 de Penicillium spp. y su aplicación en un biofiltro a escala laboratorio [PDF]

Tecnología en Marcha, 2017
El bromacil es un pesticida que se ha encontrado en fuentes de abastecimiento de agua en Costa Rica. Se ha estudiado su degradación en matriz acuosa, principalmente con métodos fotoquímicos.
Emmanuel Campos-Vargas, Kenia Calvo-Romero, Virginia Montero-Campos   +2 more
doaj   +2 more sources

Lixiviação de metribuzin, oxadiazon e bromacil em dois tipos de solos Leaching of metribuzin, oxadiazon and bromacil in two types of soils

Planta Daninha, 1979
A lixiviação de metribuzin, oxadiazon e bromacil, em dois tipos de solos foi estudada em colunas com precipitações simuladas de 60 e 120mm de chuva. Utilizaram-se colunas de 10 cm de diâmetro e 21 cm de altura, subdivididas em segmentos de 3 cm.
Edison M. Paulo, Lúcia H. Signori, R. Deuber   +2 more
doaj   +1 more source

Mixture of organic pollutants is associated with cognitive aging. [PDF]

Alzheimers Dement
Abstract INTRODUCTION Environmental organic pollutants impact brain function and cognitive aging, but the effect of real‐world complex mixtures of these pollutants is unexplored. METHODS Using data collected at two time points from 170 cognitively normal adults, we used hierarchical Bayesian kernel machine regression to examine the association between ...
Kalia V, Manz KE, Benavides J, Song S, Vollmer BL, Yan B, Goldsmith J, Pennell KD, Stern Y, Kioumourtzoglou MA, Miller GW, Habeck C, Gu Y.   +12 more
europepmc   +2 more sources

Lixiviação de trifluralin, atrazine e bromacil em três diferentes solos Leaching of trifluralin, atrazine and bromacil in three different soils

Planta Daninha, 1978
Foi estudada a taxa de lixiviação dos herbicidas trifluralin. atrazine e bromacil em três la. tossolos de texturas diferentes, utilizando-se as doses normais de uso de cada um.
L. H. Signori, R. Deuber, R. Forster
doaj   +1 more source

Leveraging Molecular Mechanics With the uESE Continuum Solvation Model for Efficient Solvation Free Energy Prediction: Impact of Conformation and Extensive Validation. [PDF]

J Comput Chem
A computationally efficient method is validated for predicting solvation free energies. Using molecular mechanics geometries with the uESE model, our approach provides accurate, high‐throughput data ideal for physics‐informed machine learning and other computational chemistry applications. ABSTRACT The solvation free energy is a fundamental property of
Paluch AS, Ethier JG, Varshney V.
europepmc   +2 more sources

N-Nitrosodimethylamine as an Emerging Environmental Contaminant: Sources, Analytical Advances, and Ecotoxicological and Human Health Risks. [PDF]

Int J Anal Chem
Over the last few years, N‐nitrosodimethylamine (NDMA) has become a significant environmental contaminant with both anthropogenic and natural sources. The alarming profile of it can be explained by the fact that it is a genotoxic substance and easily spreads through the atmospheric and water systems. The production of NDMA takes place through a variety
Sana B, Nedjoud G, Sihem K, Hadia H, Aslam AA, Mughram MHA, Alzahrani KJ, Irfan M, Ahmed M.   +8 more
europepmc   +2 more sources

An Urban Stormwater Contaminant Signature: Defining Priority Contaminants for Urban Stormwater Research. [PDF]

Water Environ Res
We identified a core suite of frequently detected contaminants in urban stormwater ponds using three complementary sampling methods. This urban stormwater contaminant signature (USCS) highlights cumulative exposures in pond ecosystems and supports more targeted monitoring of urban runoff.
Izma G, Raby M, Ijzerman M, Prosser R, Helm P, Renaud J, Sumarah M, McIsaac D, Rooney R.   +8 more
europepmc   +2 more sources

Surfactant effects on bromacil and picloram adsorption by Oregon soils [PDF]

The physical and chemical properties of soils greatly affect the toxicity of bromacil and picloram. Consequently, a knowledge of the parameters which influence the soil inactivation of these herbicides is necessary to determine proper application rates ...
Gaynor, John Donald
core   +6 more sources

Matrix effects demystified: Strategies for resolving challenges in analytical separations of complex samples

Journal of Separation Science, Volume 46, Issue 23, December 2023., 2023
Matrix effects can significantly impede the accuracy, sensitivity, and reliability of separation techniques presenting a formidable challenge to the analytical process. It is crucial to address matrix effects to achieve accurate and precise measurements in complex matrices.
Madison L. Williams, Aghogho Abigail Olomukoro, Ronald V. Emmons, Nipunika H. Godage, Emanuela Gionfriddo   +4 more
wiley   +1 more source

Freshwater mussels and host fish gut microbe community composition shifts after agricultural contaminant exposure

Journal of Applied Microbiology, Volume 133, Issue 6, Page 3645-3658, December 2022., 2022
Abstract Aims We examined the effects of a mixture of contaminants found in agricultural watersheds on the gut microbiota and physiology of both the freshwater mussel Lampsilis cardium, and L. cardium host fish Micropterus salmoides. Methods and results Lampsilis cardium and M. salmoides were exposed to three concentrations of agricultural contaminants
Stephanie P. Gill, Deric R. Learman, Mandy L. Annis, Daelyn A. Woolnough   +3 more
wiley   +1 more source