Scientists seek smoke sniffers

Scientists seek smoke sniffers

After almost six weeks of monitoring air quality during Level 3 and 4 lockdown restrictions, scientist Dr Ian Longley is now asking people to record where and when woodsmoke is affecting their health and lives.

Lockdown air quality keeps getting better

Lockdown air quality keeps getting better

Air quality scientist Dr Ian Longley has analysed data from the third week of lockdown and found levels of nitrogen oxides, mostly caused by vehicle exhaust, have fallen between 83 and 91% of normal at most sites.

Steep improvements seen in Auckland air quality, says NIWA

Steep improvements seen in Auckland air quality, says NIWA

NIWA air quality scientist Dr Ian Longley says nitrogen oxide is found in pollutants from vehicle exhausts.Dr Longley says reductions in levels of airborne particulate matter have been more modest—for example a 20 per cent drop in fine particles (PM2.5) at Takapuna during daylight hours.

NIWA reveals Arrowtown air quality standards breached every time temperature plummets

NIWA reveals Arrowtown air quality standards breached every time temperature plummets

That’s more than double the national standard of 50, with hourly concentrations peaking at 314 micrograms per cubic metre,” says project leader NIWA air quality scientist Dr Ian Longley.