Data/hora: 18/06/2024 14:39:23

Biblioteca(s): 	Embrapa Cerrados.	
Data corrente: 	08/12/2020	
Data da última atualização: 	08/12/2020	
Autoria: 	CORREIA, N. M.; CARBONARI, C. A.; VELINI, E. D.	
Afiliação: 	NUBIA MARIA CORREIA, CPAC.	
Título: 	Detection of herbicides in water bodies of the Samambaia River sub-basin in the Federal District and eastern Goiás.	
Ano de publicação: 	2020	
Fonte/Imprenta: 	Journal of Environmental Science and Health, v. 55, n. 6, 2020.	
Páginas: 	8 p.	
Idioma: 	Português	
Conteúdo: 	The objective of this study was to identify and quantify herbicide residues in water samples of rain, cisterns, streams, ponds, springs, semi-artesian wells, dams and a river in the Rio Samambaia sub-basin in the Federal District and eastern Goiás. A total of 287 samples were collected from 20 farms in the sub-basin in the rainy (February, summer) and dry (August, winter) seasons in 2016. Aminomethylphosphonic acid (AMPA, a glyphosate metabolite), clethodim, chlorimuron-ethyl, diuron, fluazifop acid (a fluazifop-p-butyl metabolite and the active ingredient), haloxyfop acid (a haloxyfop-methyl metabolite and the active ingredient), imazamox, mesotrione, metsulfuron, nicosulfuron and pendimethalin were not identified in any water sample. In the rainy season, approximately 99% of the samples contained residues at least one of the evaluated herbicides; in the dry season (, 100% of the samples contained residues of at least one of the evaluated herbicides. When considering only detection frequency, metribuzin, atrazine, clomazone and haloxyfop-methyl were the main herbicides found in the water of the Samambaia River sub-basin. In turn, based on levels higher than the limit of quantification, the main compounds detected were atrazine, clomazone, haloxyfop-methyl and glyphosate. In both seasons, the highest relative concentrations of herbicides for the rainy and dry seasons were found in spring water, 25% and 56%, respectively, and dam water, 23% and 16%, respectively.	
Thesagro: 	Água; Cisterna; Contaminação; Herbicida; Recurso Hídrico.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/218978/1/NUBIA-Detection-of-herbicides-in-water-bodies-of-the-Samambaia-River-sub-basin-in-the-Federal-District-and-eastern-Goi-s.pdf	
Registro original: 	Embrapa Cerrados (CPAC)	
Exemplares: 	CPAC - (36834-1) - UPC - AP - DD - DIGITAL -  - DIGITAL - DIS