Seasonal transport of herbicides (triazines and phenylureas) in a small stream draining an agricultural basin: Mélarchez (France)

Garmouma, Mourad; Blanchard, Martine; Chestérikoff, A.; Ansart, P.; Chevreuil, Marc

doi:10.1016/s0043-1354(96)00400-9

Cited by 58 publications

(22 citation statements)

References 23 publications

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“…water intended for human consumption. The occurrence of herbicide residues and their degradation products in water resources as the result of their extensive use on agricultural and nonagricultural land has been recognised as a serious problem in different parts of the world (Garmouma et al 1997;Close and Flintoft 2004;Drevenkar et al 2004;Scribner et al 2004;Guzzella et al 2006;Konstantinou et al 2006;Na et al 2006;Tran et al 2007;Hladik et al 2008a;Hladik et al 2008b;Kumar and Xagoraraki 2010;Loos et al 2010;Bohn et al 2011;Segura et al 2011;Jin and Peldszus 2012;Aslam et al 2013;Bottoni et al 2013;Hermosin et al 2013;George 2014a, b;Papadakis et al 2015). Atrazine, one of the worlds' most heavily applied herbicides, is regularly found in ground (Close and Flintoft 2004;Scribner et al 2004;Tran et al 2007;Loos et al 2010;Aslamet al 2013) and drinkingwater, aswell asin coastalwaters (Nödler et al 2013) and in sea water and ice in remote areas (Chernyak et al 1996).…”

Section: Introductionmentioning

confidence: 99%

Herbicide micropollutants in surface, ground and drinking waters within and near the area of Zagreb, Croatia

Fingler

Mendaš

Dvoršćak

et al. 2016

Environ Sci Pollut Res

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The frequency and mass concentrations of 13 herbicide micropollutants (triazines, phenylureas, chloroacetanilides and trifluralin) were investigated during 2014 in surface, ground and drinking waters in the area of the city of Zagreb and its suburbs. Herbicide compounds were accumulated from water by solid-phase extraction using either octadecylsilica or styrene-divinylbenzene sorbent cartridges and analysed either by high-performance liquid chromatography with UV-diode array detector or gas chromatography with mass spectrometric detection. Atrazine was the most frequently detected herbicide in drinking (84 % of samples) and ground (61 % of samples) waters in mass concentrations of 5 to 68 ng L. It was followed by metolachlor and terbuthylazine, the former being detected in 54 % of drinking (up to 15 ng L) and 23 % of ground (up to 100 ng L) waters, and the latter in 45 % of drinking (up to 20 ng L) and 26 % of ground (up to 25 ng L) water samples. Acetochlor was the fourth most abundant herbicide in drinking waters, detected in 32 % of samples. Its mass concentrations of 107 to 117 ng L in three tap water samples were the highest of all herbicides measured in the drinking waters. The most frequently (62 % of samples) and highly (up to 887 ng L) detected herbicide in surface waters was metolachlor, followed by terbuthylazine detected in 49 % of samples in mass concentrations of up to 690 ng L, and atrazine detected in 30 % of samples in mass concentrations of up to 18 ng L. The seasonal variations in herbicide concentrations in surface waters were observed for terbuthylazine, metolachlor, acetochlor, chlortoluron and isoproturon with the highest concentrations measured from April to August.

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Section: Introductionmentioning

confidence: 99%

Herbicide micropollutants in surface, ground and drinking waters within and near the area of Zagreb, Croatia

Fingler

Mendaš

Dvoršćak

et al. 2016

Environ Sci Pollut Res

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“…Atrazine occurs later, also during its application period, thus increasing the overall RQm in the period from June to July. Nonpoint releases of herbicides after application have been studied extensively during recent years, showing contamination of surface waters due to both drift and runoff (4,(46)(47)(48)(49)(50). The seasonal increases of herbicide concentrations in surface water may present a risk to the aquatic life.…”

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confidence: 99%

Including Mixtures in the Determination of Water Quality Criteria for Herbicides in Surface Water

Chèvre

Loepfe

Singer

et al. 2005

Environ. Sci. Technol.

119

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Monitoring programs throughout America and Europe have demonstrated the common occurrence of herbicides in surface water. Nevertheless, mixtures are rarely taken into account in water quality regulation. Taking mixtures into account is only feasible if the water quality criteria (WQC) of the single compounds are derived by a common and consistent methodology, which overcomes differences in data quality without settling on the lowest common denominator but making best use of all available data. In this paper, we present a method of defining a risk quotient for mixtures of herbicides with a similar mode of action (RQ m ). Consistent and comparable WQC are defined for single herbicides as a basis for the calculation of the RQ m . Derived from the concentration addition model, the RQ m can be expressed as the sum of the ratios of the measured environmental concentration and the WQC for each herbicide. The RQ m should be less than one to ensure an acceptable risk to aquatic life. This approach has the advantage of being easy to calculate and communicate, and is proposed as a replacement for the current limit of 0.1 µg/L for herbicides in Switzerland. We illustrate the proposed approach on the example of five commonly applied herbicides (atrazine, simazine, terbuthylazine, isoproturon, and diuron). Their risk profile, i.e., the RQ m as a function of time for one exemplary river, clearly shows that the single compounds rarely exceeded their individual WQC. However, the contribution of peaks of different seasonally applied herbicides, whose application periods partially overlap, together with the continuously emitted herbicides from nonagricultural use, results in the exceedance of the RQ m threshold value of one upon several occasions. IntroductionPesticides, including herbicides, differ from most industrial organic compounds in being introduced into the environment with the explicit intention of exerting effects on one or more target organisms. Unfortunately, they do not exert their toxic action only where they are applied, but can, through persistence and transport, reach other compartments of the ecosystem. Monitoring programs throughout North America and Europe have demonstrated the widespread presence of pesticides in various freshwater bodies (1-6). Over the past decade, as public concern has focused on the possible impacts of pesticides on the environment, several European and North American countries (7)(8)(9)(10)(11)(12)(13)(14) have defined specific water quality criteria (WQC) for each pesticide in surface waters. Within the EU, these WQC are often equivalent to the predicted no-effect concentration (PNEC), which aims to ensure the overall protection of aquatic life (9,12,14). This parameter is usually estimated by finding the lowest reliable aquatic effect concentration and applying a safety factor to account for various uncertainties, such as interspecies differences in sensitivity, acute-to-chronic ratios, and laboratory-to-field extrapolations (for review see refs 15-17). The drawback of this approach is...

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“…Therefore, this compound has been found as contaminants in surface and ground waters [6], and microbial degradation is considered to be the primary mechanism for their dissipation from soil. Many bacterial [7] and fungal isolates [8] that are able to (partially) break down phenylureas have been reported.…”

Section: Introductionmentioning

confidence: 99%

Degradation of linuron by ultrasound combined with photo-Fenton treatment

Katsumata

Kobayashi

Kaneco

et al. 2011

Chemical Engineering Journal

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Seasonal transport of herbicides (triazines and phenylureas) in a small stream draining an agricultural basin: Mélarchez (France)

Cited by 58 publications

References 23 publications

Herbicide micropollutants in surface, ground and drinking waters within and near the area of Zagreb, Croatia

Herbicide micropollutants in surface, ground and drinking waters within and near the area of Zagreb, Croatia

Including Mixtures in the Determination of Water Quality Criteria for Herbicides in Surface Water

Degradation of linuron by ultrasound combined with photo-Fenton treatment

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