Occurrence and weight-of-evidence risk assessment of alkyl sulfates, alkyl ethoxysulfates, and linear alkylbenzene sulfonates (LAS) in river water and sediments

Sanderson, Hans; Dyer, Scott D.; Price, Bradford B.; Nielsen, Allen M.; Compernolle, Remi van; Selby, Martin; Stanton, Kathleen; Evans, A. B.; Ciarlo, Michael; Sedlak, Richard

doi:10.1016/j.scitotenv.2006.04.030

Cited by 68 publications

(49 citation statements)

References 20 publications

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“…Most of them finally disperse in different environmental compartments such as soil, water or sediment (Ivankovic and Hrenovic, 2010). Although most surfactants are readily biodegradable, the existence of surfactants in the environment is obvious in many regions due to the continual discharge (Sanderson et al, 2006;Ying, 2006). For example, the concentration/mass fraction of one of the most common surfactants, linear alkylbenzene sulphonic acid (LAS), reached 1.1 mg/L in sewage effluents (Holt et al, 1998) and 30.2 g/kg dry mass of treated sludge (Berna et al, 1989).…”

Section: Introductionmentioning

confidence: 99%

Aqueous stability and mobility of C60 complexed by sodium dodecyl benzene sulfonate surfactant

Peng

Yuan

Wang

et al. 2016

Journal of Environmental Sciences

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Surfactant complexation may have significant effects on the environmental behavior of nano-particles. In order to understand the ecological exposure of nano-materials, it is important to determine the stability and mobility of surfactant-complexed nano-materials in aqueous systems. In this study, the aggregation and transport of C 60 complexed by the surfactant sodium dodecyl benzene sulfonate (SDBS) were investigated. It was found that SDBS-complexed C 60 had a ζ-potential of −49.5 mV under near-neutral pH conditions and remained stable during an aging period of 15 days. It had a critical coagulation concentration of 550 mmol/L for NaCl, which was higher than common natural colloids and many kinds of raw nano-materials, and was comparable to those of many kinds of surface-modified nano-materials. SDBS enhanced the stability of C 60 colloid; however, at the same time, it also enhanced the colloidal particle aggregation rate. Much higher mobility was found for SDBS-complexed C 60 than C 60 colloid. Increase in ionic strength, Ca 2+ concentration or Al 3+ concentration decreased the mobility. In general, SDBS-complexed C 60 had high stability and mobility.

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Section: Introductionmentioning

confidence: 99%

Aqueous stability and mobility of C60 complexed by sodium dodecyl benzene sulfonate surfactant

Peng

Yuan

Wang

et al. 2016

Journal of Environmental Sciences

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“…Commercial LAS consist of a mixture of several isomers with an alkyl chain length of 10-13 carbon atoms, and a benzene-sulfonate group at the para position, attached to the carbon chain. The average number of carbon atoms in the alkyl chain of commercial LAS is 11.7-11.8 (Sanderson et al, 2006). LAS reach the marine environment by urban and industrial wastewater effluents and can be detected mainly in the sediment, due to their affinity to sorb to the particulate material (Knepper et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Effect of sediment properties on the sorption of C12-2-LAS in marine and estuarine sediments

Rico-Rico

Temara

Behrends

et al. 2009

Environmental Pollution

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Sorption of C 12 -2-LAS to marine sediments mainly depends on both clay and organic carbon content. The importance of each parameter varies with the surfactant concentration. a r t i c l e i n f o a b s t r a c tLinear alkylbenzene sulfonates (LAS) are anionic high production volume surfactants used in the manufacture of cleaning products. Here, we have studied the effect of the characteristics of marine and estuarine sediments on the sorption of LAS. Sorption experiments were performed with single sediment materials (pure clays and sea sand), with sediments treated to reduce their organic carbon content, and with field marine and estuarine sediments. C 12 -2-LAS was used as a model compound. Sorption to the clays montmorillonite and kaolinite resulted in non-linear isotherms very similar for both clays. When reducing the organic content, sorption coefficients decreased proportionally to the fraction removed in fine grain sediments but this was not the case for the sandy sediment. The correlation of the sediment characteristics with the sorption coefficients at different surfactant concentrations showed that at concentrations below 10 mg C 12 -2-LAS/L, the clay content correlated better with sorption, while the organic fraction became more significant at higher concentrations.

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“…The WoE method has been used extensively for mineral resource assessment and landslide susceptibility analysis (Bonham-Carter et al 1989, Carranza and Hale 2000, Porwal et al 2001, Lee et al 2002, Sterlacchini et al 2004. Following its use in the early 1990s to support US Superfund investigations, it has also become popular for performing risk assessments associated with ecology and environmental health (Krimsky 2005, Sanderson et al 2006, Irvine and Murphy 2009. Its application to the field of hydrogeology is more recent (e.g.…”

Section: Weights Of Evidence Methodsmentioning

confidence: 99%

Aquifer vulnerability assessments using DRASTIC, Weights of Evidence and the Analytic Element Method

Abbasi

Mohammadi

Kholghi

et al. 2013

Hydrological Sciences Journal

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In arid and semi-arid regions of the world, sustainable social-economic development relies almost exclusively on the availability of good quality groundwater. Pro-active management of these resources is vital, and reliable assessments of aquifer vulnerability are an important component of the overall management plan. In southwest Iran, the universally popular DRASTIC method of vulnerability assessment was implemented using the Analytic Element Method (AEM) to determine the "depth to water" input parameter, and compared to vulnerability assessments obtained using the standard DRASTIC approach. Vulnerability maps were also prepared through statistical analysis of aquifer characteristics and water quality data using the Weights of Evidence (WoE) approach. A comparison of the four vulnerability maps produced for the region showed DRASTIC, with and without AEM refinement, to be a reliable method of vulnerability assessment. The AEM proved to be a valuable means of estimating the depth to water input parameter when well data are severely limited.Key words groundwater protection; vulnerability assessment; DRASTIC; analytic element method; weight of evidence Evaluation de la vulnérabilité des aquifères à l'aide de DRASTIC, de la méthode de pondération des preuves et de la méthode des éléments analytiques Résumé Dans les régions arides et semi-arides du monde, le développement socio-économique durable repose presque exclusivement sur la disponibilité d'eaux souterraines de bonne qualité. La gestion proactive de ces ressources est vitale, et des évaluations fiables de la vulnérabilité des aquifères sont nécessaires à tout plan de gestion globale. Au Sud-Ouest de l'Iran, la méthode classique DRASTIC d'évaluation de la vulnérabilité a été mise en oeuvre en utilisant la méthode des éléments analytiques (MEA) pour déterminer la variable d'entrée « profondeur de l'eau », et comparée à des évaluations de vulnérabilité obtenues à l'aide de l'approche DRASTIC standard. Des cartes de vulnérabilité ont également été réalisées par analyse statistique des caractéristiques de l'aquifère et des données de qualité de l'eau, en utilisant la méthode de pondération des preuves. Une comparaison des quatre cartes de vulnérabilité produites pour la région a montré que DRASTIC, avec et sans raffinement MEA, est une méthode fiable d'évaluation de la vulnérabilité. La MEA s'est avérée être un précieux moyen d'estimation de la variable d'entrée « profondeur de l'eau » lorsque les données de puits sont très limitées.

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Occurrence and weight-of-evidence risk assessment of alkyl sulfates, alkyl ethoxysulfates, and linear alkylbenzene sulfonates (LAS) in river water and sediments

Cited by 68 publications

References 20 publications

Aqueous stability and mobility of C60 complexed by sodium dodecyl benzene sulfonate surfactant

Aqueous stability and mobility of C60 complexed by sodium dodecyl benzene sulfonate surfactant

Effect of sediment properties on the sorption of C12-2-LAS in marine and estuarine sediments

Aquifer vulnerability assessments using DRASTIC, Weights of Evidence and the Analytic Element Method

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