Data has been created from hosted feature service (https://mapping.gw.govt.nz/arcgis/rest/services/GW/NRPMap_P_operative/MapServer). It has been shared to the Open Data Portal. The map is based on a model for the distribution of air pollutants in Masterton. The limit of air pollution (from domestic fires) follows the boundary of the town urban area. The model was developed by Neil Gimpson, Golders and Associates and Tamsin Mitchell, Greater Wellington Regional Council. More information can be found in the report:Golder Associates (2014), Determination of Airshed Boundaries for Masterton, the Waingawa Industrial Area and Carterton: Wairarapa Airshed Study. A report to Greater Wellington Regional Council by Golder Associates, Report No. 1378104103_007_R_Rev0, 30p + appendices. WGN_DOCS-#1345705.
