New Zealand Government Proposes to Relax Air Quality Standards for Coarse Particles

摘要

The New Zealand government June 10 proposed to relax national ambient air quality standards by allowing a greater annual number of instances when limits for par-ticulate matter less than 10 microns in diameter (PM-10) can be exceeded.rnThe government had announced a review of air quality standards in June 2009, following industry complaints about the economic impact of current regulations. In particular, existing rules requiring regional councils to stop issuing air emission permits in non-compliance areas by 2013 were causing concern.