What is something we can do in our daily lives to mitigate the impacts of urbanization on freshwater? (more than one answer)

How many truckloads of contaminated sludge were removed from Waiwhetu stream?

Before restoration of the Waiwhetu stream, some metals such as copper and zinc exceeded environmental guidelines by how much?

How many pondweed plants were removed manually from Waiwhetu Stream?

Where in the Greater Wellington Region is Waiwhetu Stream located?

Which organization is carrying out a five-year project on riparian zone effectiveness?

What is the name of the first regulation created to control end-of-pipe pollution in NZ?

How many municipal wastewater treatment plants discharge their effluents to freshwater in NZ?

What was added to house paint in New Zealand up until 1979?

Which of these can be considered contaminants? (more than one answer)

Which contaminants can enter waterways as a result of transport?