Layer Estimates:

Layer: NO2 Gehalt pro Kanton (ID:4)
Count: 47
Extent:

XMin: 657802.090469608
YMin: 5746555.23735635
XMax: 1175416.77879205
YMax: 6075960.78564211
Spatial Reference: 102100 (3857)

Layer: Proportional Symbol Map (ID:0)
Count: 26
Extent:

XMin: 663007.9309
YMin: 5751226.53
XMax: 1167981.2733
YMax: 6075047.451
Spatial Reference: 102100 (3857)