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Sophisticated science to detect chemicals in our environment

Our scientists have successfully tested a new sampling approach that rapidly identifies rogue pesticides and chemical ‘hot spots’ in our environment.

 

Passive samplers are small discs that accurately detect pesticides and other chemicals in both air and water. When installed in the environment they can provide an early warning system that can help us protect our environment.

Chemicals and pesticides are commonly used around the home and in various industries including food production. But in the environment, they can reduce air and water quality, harm our ecosystems and us.

The challenge

Our Environmental Forensics Team were asked to help detect chemicals associated with the horticulture industry in waterways of the Hearnes Lake catchment on the NSW mid-north coast.

A key challenge was to deliver cost-effective monitoring technology that could pick up pesticides quickly when they spill into the environment.

To help protect our ecosystems and the community from these compounds we need to know when and where chemical ‘hot spots’ occur.

Previous technology has had limitations – detecting chemicals in the environment was sometimes missed and it was often impossible to determine the source.

A passive sampler weighed down by weights in the water with a buoy floating on the surface.