Australia upgrades dry land run-off assessments
The Australian Pesticides and Veterinary Medicines Authority (APVMA) has proposed a new framework for environmental exposure assessments of pesticides in dry land cropping regions. The existing method uses a deterministic approach that does not take into account spatial and temporal variables that occur in the real world, the APVMA notes. It has employed publicly available "real world" data sets of stream flows to assess pesticide run-off risk to waterways in dry land cropping regions. Depending on the outcome of this pilot project, the Authority may investigate options for extending the method to other areas where tropical, subtropical and temperate horticultural and forestry plantations are grown. The new framework is open to public comment until September 21st.