| Existing Air Quality Effects | Waihi North Project Air Discharge Assessment - Waihi Surface Facilities | 4396626-1331619777-99 | 16/06/2022 | 56 It should be noted, however, that the current deposited and suspended dust monitoring programme does not provide any information on short term dust concentrations and that at times, locations downwind of the mine may experience higher than normal dust concentrations for short periods of time, which may be noticeable to the public. Nevertheless, the results of the long-term monitoring programme, and the findings of WRC’s own four-year monitoring programme, indicate that any such events do not occur sufficiently frequently, or are of sufficient magnitude, to increase the long-term average concentrations above the relevant guidelines and standards. The risk of discharges to air from blasting resulting in ambient concentrations of contaminants that exceed the NESAQ and AAQG at locations, where members of the public may be exposed, have also been demonstrated by monitoring to be minimal. No complaints have been received regarding blasting emissions since the notification system was instituted in 2005 and blasting procedures were changed. Overall, it is considered that past and current discharges to air from the Waihi mining operation are adequately avoided and mitigated.
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