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Accounting for changes in method in long-term nutrient data

Publication date:  October 2017
Publication reference number:  CR 288

The Ministry for the Environment has commissioned the National Institute of Water and Atmospheric Research to compare nutrient measurements in Wellington rivers by national recommended protocols versus Greater Wellington Regional Council’s historical protocols.

The purpose of this work was to look at the impact on regional councils’ long term nutrient measurements if monitoring protocols were changed, using Greater Wellington Regional Council as a case study.