Evaluation of anionic surfactant concentrations in US effluents and probabilistic determination of their combined ecological risk in mixing zones

McDonough, Kathleen; Casteel, Kenneth; Itrich, Nina R.; Menzies, Jennifer; Belanger, Scott E.; Wehmeyer, Kenneth R.; Federle, Thomas W.

doi:10.1016/j.scitotenv.2016.08.084

Cited by 39 publications

(34 citation statements)

References 25 publications

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“…A recent expert report from a German sewage treatment plant (STP) e uent monitoring program sponsored by the German Environment Agency (Freeling et al, 2019) reported an average e uent concentration of 0.6 µg/L and a maximum e uent concentration of 1.9 µg/L for AES. The reported concentration was slightly lower than the U.S. monitoring data for AES (∅ Clocal e uent = 1.95 ± 0.7 µg/L) reported by McDonough et al (2016). Although the monitoring data relates exclusively to STPs in Germany, they support the low digit µg/L concentration of the U.S. monitoring data.…”

Section: Resultscontrasting

confidence: 44%

“…(WWTP e ciency) = 2.4 was estimated for the comparison. Thus, one would expect 2.4 times higher concentrations in the EU Clocal e uent then reported by McDonough et al (2016) for the U.S. e uents.…”

Section: Us Monitoring Datamentioning

confidence: 75%

“…The study "Evaluation of anionic surfactant concentrations in U.S. e uents and probabilistic determination of their combined ecological risk in mixing zones" published by McDonough et al (2016) included a comprehensive U.S. monitoring dataset (i.e. average local WWTP e uent concentrations) for high-volume anionic surfactants including AS and AES.…”

Section: Resultsmentioning

confidence: 99%

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Comparing the European Union System for the Evaluation of Substances (EUSES) environmental exposure calculations with monitoring data for alkyl sulphate surfactants

Spaniol¹,

Bergheim

Dawick

et al. 2020

Preprint

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BackgroundThe European surfactant and detergent industry initiated a project to conduct an EUSES-based environmental exposure assessment for the total volume of alkyl sulfate ( AS) surfactants, and to verify if the EUSES assessment leads to a realistic prediction of the environmental exposure or to an over- respectively under-estimation of the environmental concentrations of the surfactants. Verification of the EUSES environmental concentration prediction (Clocaleffluent) was carried out by benchmarking them against environmental monitoring data. Recently published data from the United States of America adjusted to the European Union (EU) frame conditions were used for the assessment, as for the EU only historical data from the mid 1990’s are available. In addition to the standard (default) EUSES assessment, a higher tier assessment using substance-specific properties, particularly increased biodegradation rates (192 per day instead of the default of 24 per day for STP), was conducted.ResultsA figure of 178,400 tonnes of AS was established as the total maximum volume (2016) handled annually in Europe. This total volume includes the volumes from all EU manufacturers and all registered AS > 100 t/a, as well as the amount of AS contained in EU REACH registered Alkyl Ether Sulfates (AES). The total tonnage was split and assigned to the different uses as reported to ECHA in the C12 AS, Na (151-21-3) registration dossier in 2010. The EUSES calculation was limited to widespread (professional and consumer) uses, covering in total 97,889 t of AS homologues. The EUSES calculation gave a Clocaleffluent of 335 µg/L for the SimpleTreat “readily” biodegradation rate default and a Clocaleffluent of 44.6 µg/L for the AS specific degradation rates.Recent U.S. monitoring data showed a mean effluent concentration of 4.24 µg Alkyl Sulfates/L (∑ C12 + C14 + C16 homologues). Taking into account the different annual per capita AS use (including AS from AES) in the U.S. (295 g) and the EU (348 g), the daily per capita water use (EU 200 L, U.S. 408 L), and the WWTP efficiency in the EU and the U.S. (comparable), an U.S. to EU adjustment factor of 2.4 was established. Application of the adjustment factor to the U.S. monitoring data resulted in a calculated EU mean effluent concentration = 10.18 µg Alkyl Sulfates/L (∑ C12, C14, C16 homologues). This value was used as an independent benchmark for the EUSES calculations.ConclusionsComparing the predicted Clocaleffluent = 335 µg Alkyl Sulfates/L (SimpleTreat default) and a Clocaleffluent = 44.6 µg Alkyl Sulfates/L (AS-specific degradation rates) with the 10.18 µg Alkyl Sulfates/L from the adjusted monitoring data it is evident, that the EUSES calculation overestimates the AS environmental exposure by factors of > 32 and > 4, respectively. Taking into consideration, that only widespread uses (covering only 50 % of the total AS volume) were included in the EUSES calculation, the overestimation of the default exposure by a factor of 4 is still conservative, despite the fact, that 8-fold higher, substance-specific biodegradation rates were used. In conclusion, using the 2010 C12-AS REACH dossier (CAS-No. 151-21-3) as an example, it has been shown, that EUSES model exposure calculations using default biodegradation rates significantly overestimate effluent concentrations.

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Section: Resultscontrasting

confidence: 44%

Section: Us Monitoring Datamentioning

confidence: 75%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Comparing the European Union System for the Evaluation of Substances (EUSES) environmental exposure calculations with monitoring data for alkyl sulphate surfactants

Spaniol¹,

Bergheim

Dawick

et al. 2020

Preprint

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“…The particle size is less than 10 nm. FTIR spectrum conrms the surface modication of Fe 3 O, 1 mL acetic acid). The mixture was stirred for 12 h at room temperature.…”

Section: 38mentioning

confidence: 99%

“…Concentration or distribution of surfactants have been followed using liquid chromatography mass spectrometry (LC/MS/MS), 3 methylene blue active substances (MBAS), 9 capillary electrophoresis, 10 and others. 11 However, these methods require tedious procedures, show signal instability as well as requiring the use of large amounts of chlorinated solvents that are not readily biodegradable.…”

Section: Introductionmentioning

confidence: 99%

Magnetic nanoparticle modified chitosan for surface enhanced laser desorption/ionization mass spectrometry of surfactants

Abdelhamid

Lin

2017

RSC Adv.

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Chitosan (CTS) modified magnetic nanoparticles (CTS@Fe 3 O 4 MNPs) offer dual functions for the detection of surfactants using surface enhanced laser desorption/ionization mass spectrometry (SELDI-MS). The characterization of CTS@Fe 3 O 4 MNPs is carried out using X-ray diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, and UV-vis absorption. CTS@Fe 3 O 4 magnetic nanoparticles offer a simple separation method for surfactants. CTS@Fe 3 O 4 MNPs show an absorption band at 337 nm that matches the laser wavelength of the N 2 laser. The material provides dual functionalities; as a probe and for surface enhanced LDI-MS. Analysis of surfactants using CTS@Fe 3 O 4MNPs shows a remarkable limit of detection, offers high throughput analysis and fast separation (<5 min).Compared to a conventional organic matrix (2,5-DHB), the spectra obtained using CTS@Fe 3 O 4 MNPs are interference-free. The interactions of the surfactants and CTS@Fe 3 O 4 MNPs are also investigated using FTIR and UV-vis absorption.

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Predicting risks from down-the-drain chemicals in a developing country: Mexico and linear alkylbenzene sulfonate as a case study

Quinn

Dyer

Fan

et al. 2018

Environmental Toxicology and Chemistry

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It is recognized that the amount of natural dilution available can make a significant difference in the exposure and risk assessment of chemicals that emanate from wastewater treatment plants (WWTPs). However, data availability is a common limiting factor in exposure assessments for emerging markets. In the present study, we used a novel approach to derive dilution factors for the receiving waters within 5 km of wastewater discharge points in Mexico by combining locally measured river volumes, ecoregion categorization, data on WWTP capacity, and global river network models. Distributions of wastewater effluent into receiving stream dilution factors were developed for the entire country and organized by ecoregion type to explore spatial differences. The distribution of dilution factors in Mexico ranged from >1000 in tropical and temperate ecoregions to 1 in desert ecoregions. To demonstrate its utility, dilution factors were used to develop a probabilistic model to explore the potential ecological risks of the high-volume surfactant linear alkylbenzene sulfonate (LAS), commonly used in down-the-drain cleaning products. The predicted LAS river exposure values were below the predicted no-effect concentration in all regions. The methodology developed for Mexico can be used to derive refined exposure assessments in other countries with emerging markets throughout the world, resulting in more realistic risk assessments. Environ Toxicol Chem 2018;37:2475-2486. © 2018 SETAC.

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Evaluation of anionic surfactant concentrations in US effluents and probabilistic determination of their combined ecological risk in mixing zones

Cited by 39 publications

References 25 publications

Comparing the European Union System for the Evaluation of Substances (EUSES) environmental exposure calculations with monitoring data for alkyl sulphate surfactants

Comparing the European Union System for the Evaluation of Substances (EUSES) environmental exposure calculations with monitoring data for alkyl sulphate surfactants

Magnetic nanoparticle modified chitosan for surface enhanced laser desorption/ionization mass spectrometry of surfactants

Predicting risks from down-the-drain chemicals in a developing country: Mexico and linear alkylbenzene sulfonate as a case study

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