Might be, ports of Rotterdam and Antwerp both have clusters of heavy industries and they are green while parts further inland aren’t. Another reason the quality of air is not by pollution but by methane from farm animals? Not a lot of those in London either. What confuses me too is that the scale is ‘U.S. air quality’ I mean wtf is that?
Same for london. It might be going by avg for a region
Might be, ports of Rotterdam and Antwerp both have clusters of heavy industries and they are green while parts further inland aren’t. Another reason the quality of air is not by pollution but by methane from farm animals? Not a lot of those in London either. What confuses me too is that the scale is ‘U.S. air quality’ I mean wtf is that?