Matt Carthy (Cavan-Monaghan, Sinn Fein) | Oireachtas source

Okay. Will Dr. Cotter describe what the impact of each of those is on water quality? What are the dangers with respect to human consumption or for particular types of animals or insects? In other words, is there a degree to which each of these, at various levels, becomes a public danger as opposed to the obvious concerns we have in general?