Journal ArticleDOI
Fate and transport of glyphosate and aminomethylphosphonic acid in surface waters of agricultural basins.
TLDR
Glyphosate use in a watershed results in some occurrence in surface water; however, the watersheds most at risk for the offsite transport of glyphosate are those with high application rates, rainfall that results in overland runoff and a flow route that does not include transport through the soil.Abstract:
BACKGROUND: Glyphosate [N-(phosphonomethyl)glycine] is a herbicide used widely throughout the world in the production of many crops and is heavily used on soybeans, corn and cotton. Glyphosate is used in almost all agricultural areas of the United States, and the agricultural use of glyphosate has increased from less than 10000 Mg in 1992 to more than 80000 Mg in 2007. The greatest intensity of glyphosate use is in the midwestern United States, where applications are predominantly to genetically modified corn and soybeans. In spite of the increase in usage across the United States, the characterization of the transport of glyphosate and its degradate aminomethylphosphonicacid (AMPA) on a watershed scale is lacking. RESULTS: Glyphosate and AMPA were frequently detected in the surface waters of four agricultural basins. The frequency and magnitude of detections varied across basins, and the load, as a percentage of use, ranged from 0.009 to 0.86% and could be related to three general characteristics: source strength, rainfall runoff andflow route. CONCLUSIONS: Glyphosate use in a watershed results in some occurrence in surface water; however, the watersheds most at risk for the offsite transport of glyphosate are those with high application rates, rainfall that results in overland runoff and a flow route that does not include transport through the soil. c � 2011 Society of Chemical Industryread more
Citations
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Journal ArticleDOI
Developmental effect of parental or direct chronic exposure to environmental concentration of glyphosate on the larvae of rainbow trout, Oncorhynchus mykiss.
TL;DR: In this article, the impact of parental and direct exposure to 1μgL-1 of glyphosate using the active substance alone or one of two GBH formulations (i.e., Roundup Innovert® and Viaglif Jardin®) in the early developmental stages of rainbow trout was investigated.
Journal ArticleDOI
Perinatal exposure to low doses of glyphosate-based herbicide combined with a high-fat diet in adulthood causes changes in the jejunums of mice
S.B. Panza,R. Vargas,Sandra Lucinei Balbo,Maria Lúcia Bonfleur,D.C.T. Granzotto,Debora de Mello Gonçales Sant'Ana,Gessilda de Alcântara Nogueira-Melo +6 more
TL;DR: It is suggested that perinatal glyphosate exposure combined with a high-fat diet in adulthood increases the risk of jejunum inflammation and dysfunction.
Journal ArticleDOI
Aminomethylphosphonic acid (AMPA) alters oxidative status during embryonic development in an amphibian species.
TL;DR: In this paper, the authors compared the influence of environmentally relevant concentrations of AMPA (from 0.07 to 3.57μg l−1) on the relation between developmental traits (i.e., embryonic development duration, embryonic mortality and hatchling size) and oxidative status markers known to alter homeostasis when unbalanced (superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT), thiols and ratios thereof).
Book ChapterDOI
Carbon nanotubes: An efficient sorbent for herbicide sensing and remediation
TL;DR: In this paper, the authors have summarized the recent advances in detecting and degradation herbicides such as Diuron, Fenuron, Dicamba, Metribuzin, Sulfentrazone, Atrazine, toxins, etc., by using electrochemical methods and optical methods such as single or multiwalled carbon nanotubes.
Journal ArticleDOI
Pesticides detected in surface and groundwater from agroecosystems in the Pampas region of Argentina: occurrence and ecological risk assessment.
Josefina Vera-Candioti,Josefina Vera-Candioti,Patricia Inés Araujo,Patricia Inés Araujo,Ignacio Roberto Huerga,Dante Emanuel Rojas,Diego Sebastian Cristos,Alberto David Malmantile +7 more
TL;DR: In this article, the presence and concentration of pesticides in surface and groundwater from agricultural areas of south Santa Fe province, north Pampas region, Argentina, and a starting point for pesticide ecological risk assessment was provided.
References
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Book ChapterDOI
Ecotoxicological Risk Assessment for Roundup ® Herbicide
TL;DR: Glyphosate-based weed control products are among the most widely used broad-spectrum herbicides in the world and have been extensively investigated for their potential to produce adverse effects in nontarget organisms as discussed by the authors.
Journal ArticleDOI
The Pesticide Content of Surface Water Draining from Agricultural Fields—A Review
TL;DR: The literature on pesticide losses in runoff waters from agricultural fields is reviewed in this paper, where the majority of commercial pesticides, total losses are 0.5%0 or less of the amounts applied, unless severe rainfall conditions occur within 1-2 weeks after application.
Journal ArticleDOI
Adsorption, Mobility, and Microbial Degradation of Glyphosate in the Soil
TL;DR: Glyphosate [N-(phosphonomethyl)glycine] was readily bound to kaolinite, illite, and bentonite clay and to charcoal and muck but not to ethyl cellulose as mentioned in this paper.
Journal ArticleDOI
The current status and environmental impacts of glyphosate-resistant crops: a review.
TL;DR: Glyphosate-resistant crops have promoted the adoption of reduced- or no-tillage agriculture in the USA and Argentina, providing a substantial environmental benefit and the development and use of failsafe introgression barriers in crops with such linked genes is needed.
Journal ArticleDOI
Hydrologic evaluation of the soil and water assessment tool for a large tile-drained watershed in iowa
TL;DR: In this paper, the Soil and Water Assessment Tool (SWAT) water quality model is designed to assess nonpoint and point source pollution and was recently modified for tile drainage.