Results 21 to 30 of about 524 (139)

Challenges with the current methodology for conducting Endangered Species Act risk assessments for pesticides in the United States

Integrated Environmental Assessment and Management, Volume 19, Issue 3, Page 817-829, May 2023., 2023
Abstract The US Environmental Protection Agency (USEPA or the Agency) is responsible for administering the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). The Agency is also required to assess the potential risks of pesticides undergoing registration or re‐registration to threatened and endangered (i.e., listed) species to ensure ...
R. Scott Teed, Dwayne R. J. Moore, Oliver Vukov, Richard A. Brain, Jay P. Overmyer   +4 more
wiley   +1 more source

Prioritizing Pesticides of Potential Concern and Identifying Potential Mixture Effects in Great Lakes Tributaries Using Passive Samplers

Environmental Toxicology and Chemistry, Volume 42, Issue 2, Page 340-366, February 2023., 2023
Abstract To help meet the objectives of the Great Lakes Restoration Initiative with regard to increasing knowledge about toxic substances, 223 pesticides and pesticide transformation products were monitored in 15 Great Lakes tributaries using polar organic chemical integrative samplers.
Luke C. Loken, Steven R. Corsi, David A. Alvarez, Gerald T. Ankley, Austin K. Baldwin, Brett R. Blackwell, Laura A. De Cicco, Michele A. Nott, Samantha K. Oliver, Daniel L. Villeneuve   +9 more
wiley   +1 more source

Pesticide Prioritization by Potential Biological Effects in Tributaries of the Laurentian Great Lakes

Environmental Toxicology and Chemistry, Volume 42, Issue 2, Page 367-384, February 2023., 2023
Abstract Watersheds of the Great Lakes Basin (USA/Canada) are highly modified and impacted by human activities including pesticide use. Despite labeling restrictions intended to minimize risks to nontarget organisms, concerns remain that environmental exposures to pesticides may be occurring at levels negatively impacting nontarget organisms. We used a
Samantha K. Oliver, Steven R. Corsi, Austin K. Baldwin, Michele A. Nott, Gerald T. Ankley, Brett R. Blackwell, Daniel L. Villeneuve, Michelle L. Hladik, Dana W. Kolpin, Luke Loken, Laura A. DeCicco, Michael T. Meyer, Keith A. Loftin   +12 more
wiley   +1 more source

The Targeted Pesticides as Acetylcholinesterase Inhibitors: Comprehensive Cross-Organism Molecular Modelling Studies Performed to Anticipate the Pharmacology of Harmfulness to Humans In Vitro

Molecules, 2018
Commercially available pesticides were examined as Mus musculus and Homo sapiens acetylcholinesterase (mAChE and hAChE) inhibitors by means of ligand-based (LB) and structure-based (SB) in silico approaches. Initially, the crystal structures of simazine,
Milan Mladenović, Biljana B. Arsić, Nevena Stanković, Nezrina Mihović, Rino Ragno, Andrew Regan, Jelena S. Milićević, Tatjana M. Trtić-Petrović, Ružica Micić   +8 more
doaj   +1 more source

The phytotoxic action of triazine herbicides on flax, beets and buckwheat seedlings, and some physiological changes connected with it

Acta Agrobotanica, 2015
It was found that triazine herbicides exerted, when applied for a longer time, an increasing inhibitory effect on dry and fresh weight yields, transpiration and growth of the seedlings of flax, beet and buckwheat.
M. Płoszyński, H. Żurawski
doaj   +1 more source

The utilization of open-source microcontroller boards and single-board computers in liquid chromatography. [PDF]

J Sep Sci
Electronic system control of analytical instrumentation remains a critical aspect of modern measurement science. Within the field of liquid chromatography (LC), this is especially relevant for automation, module operation, detection, data acquisition, and data analysis.
Piccolo C, Foster SW, Parker D, Seltzer C, Grinias JP.   +4 more
europepmc   +2 more sources

Hollow Fibre Membrane-Protected Molecularly Imprinted Microsolid-Phase Extraction (HFM-Protected-MI-MSPE) of Triazines from Soil Samples

Separations, 2018
In this work, a combination of molecularly imprinted polymer (MIP) technology with micro solid-phase extraction in a hollow fibre device is described. MIP microspheres were synthesized and packed into polypropylene hollow fibre (HF) segments.
Myriam Díaz-Álvarez, Antonio Martín-Esteban, Esther Turiel   +2 more
doaj   +1 more source

Ionic Liquid-Assisted Liquid–Liquid Microextraction based on the Solidification of Floating Organic Droplet in Sample Preparation for Simultaneous Determination of Herbicide Residues in Fruits

Acta Chimica Slovenica, 2017
An environmentally friendly approach, ionic liquid-assisted liquid–liquid microextraction based on the solidification of floating organic droplet (ILSFOD-LLME) was investigated for analysis of four herbicide residues (i.e.
Jitlada Vichapong, Yanawath Santaladchaiyakit, Rodjana Burakham, Supalax Srijaranai   +3 more
doaj   +1 more source

Collaborative Study of a Gas-Liquid Chromatographic Method for the Analysis of Propazine

Journal of AOAC INTERNATIONAL, 1975
Abstract A gas-liquid chromatographic method for the determination of propazine in wettable powder formulations containing about 80% active ingredient was collaboratively studied, using a matched pair scheme. The propazine was extracted from the powder with chloroform, with dieldrin as an internal standard, and chromatographed on ...
A H, Hofberg, L C, Heinrichs, G A, Gentry   +2 more
openaire   +2 more sources

Sorption of atrazine, propazine, deethylatrazine, deisopropylatrazine and hydroxyatrazine onto organovermiculite [PDF]

Journal of the Brazilian Chemical Society, 2005
The interaction of atrazine (AT), propazine (PROP), deethylatrazine (DEA), deisopropylatrazine (DIA) and hydroxyatrazine (HAT) was studied with the clay mineral vermiculite saturated with K+ (VTK), and with the mineral modified by insertion of hexadecyltrimethyl-ammonium (HDTMA-VT) in the interlayer of VTK.
Abate, Gilberto, Masini, Jorge Cesar
openaire   +3 more sources