Slough does not have clean fresh air.
Slough's daily air pollution comes from the M4 Motorway, A4 main road, rubbish burning incinerators in Colnbrook and north-west central Slough, Heathrow Airport and from London and surrounding areas.
Pollution levels are: low, medium, high and very high. moderate means 'medium' which is halfway between LOW and HIGH. LOW pollution is not the same as NO pollution.
Slough has no practical pollution reduction policies,
because the Local Authority regards pollution as
acceptable even though
pollution is bad for all animals including Human Beings.