Steven Matthews (Wicklow, Green Party) | Oireachtas source

There is a health implication from nitrates. The evidence we see there is a connection back to agricultural run-off. What is the nature of the agricultural run-off that contributes to nitrates? Will the witnesses explain to people who might be listening and who might not be as familiar with the expertise that is in the room here? Would that be slurries, animal wastes, excessive use of nitrogen-based fertilisers and that kind of thing?