What is air quality like in Bristol?
In September 2017 the City Council published the Annual Status Report and submitted it to Government.
The report is available from the link below.
Like all major cities in the UK and Europe, air quality in Bristol breaches annual mean objectives for nitrogen dioxide.
There are legal limits set for air pollution. Annual mean objectives for nitrogen dioxide are set at 40μg/m3 (microgrammes per metre cubed) and hourly 200μg/m3 with a permissible 18 hours per year above the 200μg/m3 limit allowed respectively.
Bristol regularly breaks the annual mean threshold on pollution for NO2.
Traffic – derived air pollution (NO2 and PM10) peaks at rush hour, is worse in winter, on still days and closer to main roads.