I do not propose to commission a study to look at the effect of smells in Shannon as a investigation into the matter is already underway. I am advised by the HSE that the investigation of recent odours in Shannon is being undertaken by the EPA and Clare County Council. This investigation is being assisted by the Public Health and Environmental Health Departments of the HSE. The investigation comprises of :
- surveillance of health effects requiring medical attention;
- monitoring of reported effects in a selection of local schools; and
- advice on toxicological levels of the presumed source of the "rotten egg" odour Hydrogen Sulphide which the investigating agencies believe is linked to the waste water system.
I am further advised that to date no serious health effects have been reported which is consistent with the profile of Hydrogen Sulphide, a gas with an odour threshold well below the level which causes health effects. Confirmation of the presence of Hydrogen Sulphide, if identified through the results of a planned testing programme, will allow the use of the toxicological advice provided to inform and reassure residents in relation to potential health effects.