Integrated assessment of the impact of chemical stressors on surface water ecosystems

The Science of the Total Environment
Ursula S McKnightPhilip J Binning

Abstract

The release of chemicals such as chlorinated solvents, pesticides and other xenobiotic organic compounds to streams, either from contaminated sites, accidental or direct application/release, is a significant threat to water resources. In this paper, different methods for evaluating the impacts of chemical stressors on stream ecosystems are evaluated for a stream in Denmark where the effects of major physical habitat degradation can be disregarded. The methods are: (i) the Danish Stream Fauna Index, (ii) Toxic Units (TU), (iii) SPEAR indices, (iv) Hazard Quotient (HQ) index and (v) AQUATOX, an ecological model. The results showed that the hydromorphology, nutrients, biological oxygen demand and contaminants (pesticides and trichloroethylene from a contaminated site) originating from groundwater do not affect the good ecological status in the stream. In contrast, the evaluation by the novel SPEAR(pesticides) index and TU indicated that the site is far from obtaining good ecological status - a direct contradiction to the ecological index currently in use in Denmark today - most likely due to stream sediment-bound pesticides arising from the spring spraying season. In order to generalise the findings of this case study, the HQ inde...Continue Reading

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Citations

Aug 6, 2013·Journal of Hazardous Materials·Ramon López-RoldánJose Luis Cortina
Nov 28, 2012·The Science of the Total Environment·Jes J RasmussenBrian Kronvang
Nov 1, 2015·The Science of the Total Environment·Jes Jessen RasmussenNina Cedergreen
Sep 18, 2015·The Science of the Total Environment·C Becouze-LareureY Perrodin
Aug 3, 2013·Integrated Environmental Assessment and Management·Serenella Sala, Malgorzata Goralczyk
Apr 24, 2013·Integrated Environmental Assessment and Management·Theo C M Brock
Dec 17, 2014·Journal of Contaminant Hydrology·Angeliki AisopouPhilip J Binning
Sep 17, 2013·Environmental Pollution·Jes Jessen RasmussenNikolai Friberg
Feb 24, 2015·Environmental Pollution·Ursula S McKnightPoul L Bjerg
Apr 16, 2016·Environmental Science & Technology·Peter Wiberg-LarsenJes Jessen Rasmussen
Nov 8, 2014·PloS One·Leila Priscila PetersRicardo Antunes Azevedo
Aug 20, 2016·Integrated Environmental Assessment and Management·Randall Jf BruinsRalf B Schäfer
Aug 16, 2015·Archives of Environmental Contamination and Toxicology·Jes J RasmussenPoul L Bjerg
Apr 15, 2020·Environmental Science and Pollution Research International·Hongyong XiangRaju Sekar
Jan 19, 2021·Environmental Pollution·Peter Wiberg-LarsenJes Jessen Rasmussen

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