Dublin tops air quality index map

Dublin scores highest in the country when it comes to clean air.

RTÉ’s latest episode of The Science Squad reveals that the air quality in the heavily populated East of the country is cleaner than in the West.

The nation’s new air quality index for health — updated hourly by the Environmental Protection Agency (EPA) — gauges from one to 10 the air quality in a given region, and whether or not it might affect the public’s health.