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Ibuprofen posing potential threat to fish, researchers say

Date:
August 21, 2014
Source:
University of York
Summary:
Many rivers contain levels of ibuprofen that could be adversely affecting fish health, researchers report. In what is believed to be the first study to establish the level of risk posed by ibuprofen at the country scale, the researchers examined 3,112 stretches of river which together receive inputs from 21 million people.

Research led by the University of York suggests that many rivers contain levels of ibuprofen that could be adversely affecting fish health.

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Using a new modelling approach, the researchers estimated the levels of 12 pharmaceutical compounds in rivers across the UK. They found that while most of the compounds were likely to cause only a low risk to aquatic life, ibuprofen might be having an adverse effect in nearly 50 per cent of the stretches of river studied.

The results of the study, which involved York's Environment Department, the Centre for Ecology and Hydrology, F. Hoffmann-La Roche Ltd (Switzerland) and the Food and Environment Research Agency (Fera), are reported in the journal Environment International.

In what is believed to be the first study to establish the level of risk posed by ibuprofen at the country scale, the researchers examined 3,112 stretches of river which together receive inputs from 21 million people.

Professor Alistair Boxall, from the University of York's Environment Department, said: "The results of our research show that we should be paying much closer attention to the environmental impacts of drugs such as ibuprofen which are freely available in supermarkets, chemists and elsewhere."

The researchers have developed a combined monitoring and modelling approach that takes into account factors such as the non-use of prescribed drugs by patients, and addresses differences in metabolism in individuals who are using a drug. The new approach also accounts for removal processes in the local sewerage network and for differences in the effectiveness of different wastewater treatment technologies. In this way, it provides more accurate estimates of the concentrations of compounds entering rivers than previous modelling approaches.

Richard Williams, from the Centre for Ecology & Hydrology (CEH) -- a public-sector research centre which is part of the Natural Environment Research Council (NERC), said: "When we compared the results of our modelling with available monitoring data for pharmaceuticals in the UK, we were delighted at the close agreement between the modelled and measured data."

Professor Boxall added: "While our study focused on pharmaceuticals, the approach we have developed could also be valuable in assessing the risks of other 'down the drain' chemicals and could help inform our understanding of the important dissipation processes for pharmaceuticals in the pathway from the patient to the environment."


Story Source:

The above story is based on materials provided by University of York. Note: Materials may be edited for content and length.


Journal Reference:

  1. A.B.A. Boxall, V.D.J. Keller, J.O. Straub, S.C. Monteiro, R. Fussell, R.J. Williams. Exploiting monitoring data in environmental exposure modelling and risk assessment of pharmaceuticals. Environment International, 2014; 73: 176 DOI: 10.1016/j.envint.2014.07.018

Cite This Page:

University of York. "Ibuprofen posing potential threat to fish, researchers say." ScienceDaily. ScienceDaily, 21 August 2014. <www.sciencedaily.com/releases/2014/08/140821090021.htm>.
University of York. (2014, August 21). Ibuprofen posing potential threat to fish, researchers say. ScienceDaily. Retrieved April 18, 2015 from www.sciencedaily.com/releases/2014/08/140821090021.htm
University of York. "Ibuprofen posing potential threat to fish, researchers say." ScienceDaily. www.sciencedaily.com/releases/2014/08/140821090021.htm (accessed April 18, 2015).

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