A new study by Berkeley Lab air quality scientists tested four models of low-cost air quality monitors during actual wildfire pollution events and found that their readings of PM2.5 – or particulate matter under 2.5 microns, which has been linked to respiratory and cardiovascular issues – were consistently higher than the reference monitor used by the regulatory agencies; however, since each monitor had a relatively consistent response to the smoke, it is possible to use the readings to estimate true PM2.5 levels.
- Trying to beat a coke habit with cannabis? Not so fast !
- Secrets of traumatic stress hidden in the brain are exposed
- Pace of prehistoric human innovation could be revealed by ‘linguistic thermometer’
- Harpy eagles could be under greater threat than previously thought
- Children can bypass age verification procedures in popular social media apps