Arrowtown 2019 – Update for May 2019
The start of any CONA project is always frantic. May is always an exciting time as we launch each Community Observation Networks for Air initiative, and this fifth season, in the pretty but polluted South Island town of Arrowtown, has been no exception. Spatial variation of smoke in Arrowtown As I write from the relative calm of early June I can report we have 23 outdoor PM sensors (ODINs) and 10 new indoor PM sensors (HauHaus) in place around the town, with more ready to roll out. And not a moment too soon. According to www.lawa.org.nz the ‘official’ air quality monitor in Arrowtown has already recorded 4 exceedences of the National Environmental Standard (PM10 over 50 micrograms per cubic metre as a daily average), and a peak hourly concentration of 195 on 22nd May. PM10 and air temperature data for the month of May 2019 from www.lawa.org.nz Ironically that was the day before the Cosy Homes Trust hosted its Warm Homes Show in Arrowtown. Around 55 people att