Results 31 to 40 of about 404 (132)

Cuantificación de tres pesticidas COP en agua por el método de HPLC-UV

Revista Científica y Tecnológica UPSE, 2018
Fue validado un método de HPLC-UV-visible para la determinación de los pesticidas Aldrin, 4,4´-DDT y Dieldrin en agua. Para ello se empleó una columna C18 en fase reversa, una fase móvil que consistió en una mezcla acetonitrilo/agua, (v/v = 85:15) a una ...
Katya Reategui Palomino, Bernardo Leal Carrasco   +1 more
doaj   +1 more source

Multi-residue Analysis of Organochlorine Pesticides in Cocoa Beans (Theobroma cacao) and Soils from Ondo, Nigeria

Pakistan Journal of Analytical & Environmental Chemistry, 2020
Organochlorine pesticides (OCPs) residues were determined in a total of 160 samples comprising of cocoa beans and soil collected from four major cocoa farms in Ondo, Nigeria.
Ihedioha Janefrances N, Ejalonibu Murtala A, Ekere Nwachukwu R   +2 more
doaj   +1 more source

Pesticide Contamination in the Hair of Children From Colonia San Juan, a Rural Community in Paraguay

Drug Testing and Analysis, Volume 18, Issue 3, Page 354-369, March 2026.
Hair analysis in children from a rural community in Paraguay reveals exposure to organophosphates, pyrethroids, neonicotinoids, fungicides, herbicides, and endocrine disruptors, highlighting the urgent need for stricter environmental protections and preventive health measures. ABSTRACT Chronic exposure to pesticides can cause carcinogenic, reproductive,
Stela Benitez Leite, Alba Iglesias‐Gonzalez, Mirta Noemí Mesquita, María Luisa Macchi, Robin Mesnage, Brice M. R. Appenzeller   +5 more
wiley   +1 more source

The “Pesticide Chip”: Chemical Legacies and Agrarian Futures in Costa Rica

Antipode, Volume 58, Issue 2, March 2026.
Abstract For decades, agro‐industrial capital has adopted cascading chemical and biotechnical interventions, or fixes, to secure accumulation through the cultivation of monocrops. We develop a framework that centres on how monocrop‐induced susceptibility to pests and pathogens—and the patchwork of fixes to address these—produces uneven chemical ...
Soledad Castro‐Vargas, Marion Werner
wiley   +1 more source

Genetic Surveillance Reveals Differential Evolutionary Dynamic of Anopheles gambiae Under Contrasting Insecticidal Tools Used in Malaria Control

Molecular Ecology, Volume 35, Issue 5, March 2026.
ABSTRACT Malaria, a febrile disease caused by the Plasmodium parasites and transmitted by mosquitoes, is a leading cause of mortality in children under 5 in endemic countries. The widespread deployment of insecticide‐treated bed nets (ITNs) has significantly reduced malaria transmission, but rising levels of insecticide resistance threaten to halt the ...
Harun N. Njoroge, Lilian Namuli, Sanjay C. Nagi, Anastasia Hernandez‐Koutoucheva, Daniel P. McDermott, Erin Knight, Samuel Gonahasa, Amy Lynd, Ambrose Oruni, Catherine Maiteki‐Sebuguzi, Jimmy Opigo, Adoke Yeka, Agaba Katureebe, Mary Kyohere, Moses R. Kamya, Grant Dorsey, Janet Hemingway, Sarah G. Staedke, Chris Clarkson, Alistair Miles, Eric R. Lucas, Martin J. Donnelly   +21 more
wiley   +1 more source

Synthesis, Characterization, and Evaluation of the Remediation Activity of Cissus quadrangularis Zinc Oxide Nanoparticle-Activated Carbon Composite on Dieldrin in Aqueous Solution

Journal of Nanotechnology, 2022
In this study, zinc oxide-activated carbon nanocomposite was used as the adsorbent for the remediation of dieldrin in aqueous media. Zinc oxide nanoparticles (ZNPs) were synthesized from Cissus quadrangularis (C.
Calvince Ondijo, Fredrick Kengara, Isaac K’Owino   +2 more
doaj   +1 more source

Evaluation of the pollution pressures posed by groups of chemicals on British riverine invertebrate populations

Biological Reviews, Volume 101, Issue 1, Page 106-127, February 2026.
ABSTRACT Globally, rivers receive a diverse range of chemicals, including metals, pesticides, persistent organic pollutants, petrochemicals, human and veterinary pharmaceuticals and personal care products. However, the extent to which these different chemical groups affect riverine invertebrate communities is not well defined.
Imogen P. Poyntz‐Wright, Xavier A. Harrison, Charles R. Tyler   +2 more
wiley   +1 more source

SUSCEPTIBILITY OF ANOPHELES FLUVIATILIS TO INSECTICIDES IN SOUTHERN IRAN [PDF]

Iranian Journal of Public Health, 1982
The first records of Anopheles fluviatilis resistance to DDT was reported in 1963 from India and to dieldrin from eastern Saudi Arabia in 1959. In southern Iran, antimalaria measures began in 1950 and up to 1957 the area was under DDT residual house ...
N.Eshaghy, E.Javadian, A.V.Manouchehri
doaj   +2 more sources

Determination of Dieldrin and Polychlorinated Biphenyls in Seawater by Solid Phase Extraction and Capillary Gas Chromatography

Yankuang ceshi, 2014
Dieldrin and polychlorinated biphenyls (PCBs) are toxic, organic pollutants that break down extremely slowly in the marine environment. Therefore, it is of valuable significance to establish a rapid, sensitive and accurate detection method for dieldrin ...
LIU Jing, WANG Li, ZENG Xing-yu, ZHANG Yan-ping, WANG Xu-liang   +4 more
doaj   +2 more sources

Levels of organochlorine pesticides in the blood serum of agricultural workers from Rio de Janeiro State, Brazil Níveis de pesticidas organoclorados no soro sangüíneo de agricultores do Estado do Rio de Janeiro, Brasil

Cadernos de Saúde Pública, 1998
Serum levels of organochlorine pesticides (OCP) were measured in agricultural workers from Rio de Janeiro State, Brazil. Blood samples from 26 volunteers (24 males, 02 females, 17-60 years old) were taken in October 1997.
Francisco José Roma Paumgartten, Isabella Fernandes Delgado, Elba Santos Oliveira, Irene Baptista Alleluia, Heloisa H.C. Barretto, Tereza A. Kussumi   +5 more
doaj   +1 more source