27/41 
GeoForschung Zentrum (GFZ), Potsdam. At present the network consists of ap 
proximately 200 stations delivering measurements of integrated water vapour 
every 15 minutes and with an accuracy of circa 2 kg/m 2 . 
(h) Sustained measurements of the atmospheric composition ECVs, supplementary 
to those activities implicit in table 1c. 
In Germany, the environmental agencies of the states all run monitoring pro 
grammes dedicated to characterizing aerosol mass concentrations (PM10, PM 
2.5, soot, etc.) and ozone levels on regional scales. Thus, they contribute to “oth 
er aerosol parameters” and “other greenhouse gases”.