Welcome to Freshwater Update.
Here we bring you a review and outlook of New Zealand's freshwater resources, seasonal water quality information and news of our latest freshwater research.
As well as the articles in this update, the following have been posted to our website:
Restoration of Aquatic Ecosystems
Risk assessment of contaminants in traditional food sources
Lake Rotorua sediment-capping trial
Framework for Interoperable Freshwater Models
On-site disposal of poorly treated household wastewater can be a significant source of pollution in ground and surface water.
A recent study by NIWA has identified levels of some emerging contaminants around the Auckland marine environment that are similar to those measured in other industrialised countries.
What are emerging contaminants?
A study on the benefits of street sweeping for reducing stormwater contaminant loads to streams has been completed for Nelson City Council (NCC). The study found that properly designed street-sweeping programmes can reduce contaminant loads in catchments by approximately 30 per cent.
