So I checked it, it provides a nice (even though slightly slow) interface
The problem is however, that the data only partly comply with our criteria (PM10 and 2.5) which are very important pollutants, but not all of what we measure. This year we only assessed data if they fully complied with our data descriptions. As it is, I can add a reviewer comment and say that this website exists and how people can see the data. Yet, no scoring is possible here
Also, there is a nice "Research and Data Access" button. Unfortunately without any underlying link. It would be fantastic if this could be added at some point.