Michael Fitzmaurice (Roscommon-Galway, Independent) | Oireachtas source

My next question is for the officials from the Department of Housing, Local Government and Heritage. They talk about different problems, including those associated with nitrogen and phosphorus. There are a lot of towns around Ireland where effluent from sewage-treatment plants goes into the rivers we talk about. Funnily enough, the farmer always gets kicked around the place about this. Scientifically, can it be stated whether phosphorus comes out of an animal or a person?