This states that air quality in the UK is generally very good, but there are still sometimes unacceptably high levels of air pollution that have the potential to harm human health and the environment.
(sometimes unacceptably high levels of air pollution; have; the potential to harm human health and the environment) (This; states; that air quality in the UK is generally very good, but there are still sometimes unacceptably high levels of air pollution) Context(This states,List([0, 11))):(air quality in the UK; is generally; very good)
This states,List([0, 11))
sometimes unacceptably high levels of air pollution This air quality in the UK
have states is generally
the potential to harm human health and the environment
that air quality in the UK is generally very good, but there are still sometimes unacceptably high levels of air pollution
very good