paraquat


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Related to paraquat: paraquat poisoning, diquat

paraquat

 [par´ah-kwat]
a poisonous compound some of whose salts are used as contact herbicides. Concentrated solutions cause skin irritation, cracking and shedding of nails, and delayed healing of cuts and wounds. After ingestion of large doses, renal and hepatic failure may develop, followed by pulmonary insufficiency, sometimes ending fatally; it may also be accidentally inhaled. Since it is absorbed slowly from the gastrointestinal tract, the best treatment for poisoning is administration of a large amount of an absorbent such as activated charcoal to bind with the paraquat, followed by a cathartic to shorten transit time.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

par·a·quat

(par'ă-kwaht),
A weedkiller that produces delayed toxic effects on the liver, kidneys, and lungs when ingested; progressive interstitial pneumonia with proliferation of alveolar lining cells may develop.
Farlex Partner Medical Dictionary © Farlex 2012

paraquat

(păr′ə-kwŏt′)
n.
A toxic nonpersistent contact herbicide, C12H14 N2, usually formulated as its colorless dichloride salt, C12H14Cl2N2, or yellow bismethyl sulfate salt, C12H14N2O8S2.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

par·a·quat

(par'ă-kwaht)
A weedkiller that produces delayed toxic effects on the liver, kidneys, and lungs when ingested.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

paraquat

A highly poisonous defoliant weedkiller that can cause progressive lung damage, respiratory failure and kidney failure. The poison can be absorbed through the skin. Charcoal or Fuller's earth are useful antidotes.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
Table I.- Behavioural abnormalities of Juveniles of Clarias gariepinus after exposure to acute concentrations of glyphosate and paraquat.
Miyazaki, "Analysis of paraquat, diquat and two diquat metabolites in biological materials by high-performance liquid chromatography," Legal Medicine, vol.
Carmo et al., "Paraquat exposure as an etiological factor of Parkinson's disease," NeuroToxicology, vol.
Buckley, "Medical management of paraquat ingestion," British Journal of Clinical Pharmacology, vol.
Herbicides treatments studied to control cotton stalk regrowth First application (1) Second application (2) Untreated control (3) 2,4-D amine (4) 2,4-D amine (4) 2,4-D amine (4) Carfentrazone (5) 2,4-D amine (4) Paraquat (6) 2,4-D amine (4) Saflufenacil (7) 2,4-D amine (4) Paraquat (6) + diuron (8) 2,4-D amine (4) -- 2,4-D amine (4) Glufosinate-ammonium (9) (1) Sprayings performed after using stalk shredder, when at least 50% of the stalks had shoots longer 3 cm or leaves with diameter larger than 2.5 cm; (2) Sprayings at 41, 34 and 31 days after the first application, respectively for Santa Helena de Goias in 2013 and 2014, and Luis Eduardo Magalhaes in 2014; (3) Sprayed only with water + mineral oil (756 g [ha.sup.-1] of active ingredient--a.i.
At 23 DAE, in all treatments in which the mixture of herbicides with the paraquat in the "A" application was proceeded, the control levels of D.
It is clearly concluded that the obtained ZnO nanocatalysts represent an excellent candidate with the commercial ZnO catalyst with high catalytic activity in the degradation of the methyl orange dye (MO) as well as paraquat herbicide.
With damage mentioned above, using paraquat may pose potential environmental hazards to humans or surrounding ecosystems [21, 22].
Paraquat (known in chemistry as 1,1'-dimethyl-4,4'-bipyridinium dichloride) is a herbicide that has been in the international market since 1958.
Target: US assets relating to Abamectin, Chlorothalonil and Paraquat