Data from a pollution monitor located on Warrender Park Road near the High School, measuring particulate pollution (PM10, PM2.5). Particulate pollution is commonly caused by Diesel engines as well as brake- and tyre- wear dust.
Currently, the World Health Organisation identifies safe levels of PM10s (particulates measuring under ten micrometres) as under 20µg/m³ (micrograms per cubic metre). The EU’s safe particulate matter level for PM10s is 40µg/m³. The U.S. Environmental Protection Agency states that PM2.5 levels of 35.5 to 55.4µg/m³ are unhealthy for children.
PM10s are implicated in causing asthma and PM2.5s can even enter the bloodstream via the lungs due to their small size.