An interactive map which enables people to monitor nitrate levels in their drinking water is being launched on Monday.
Greenpeace Aotearoa's Know Your Nitrate map allows users to search for information on local levels.
According to Otago University scientists, 800,000 New Zealanders are at risk of drinking hazardous levels of nitrates.
Greenpeace Aotearoa's executive director Russel Norman spoke to Ingrid Hipkiss.
