Present Membership
- Association pour la Prévention de la Pollution Atmosphérique (A.P.P.A.)
- Croatia: Croatian Air Pollution Prevention Association (CAPPA)
- Finland: Finnish Air Pollution Prevention Society (FAPPS)
- France: Association pour la Prévention de la Pollution Atmosphérique
- Germany: Kommission Reinhaltung der Luft im VDI und DIN -Normenausschuß (KRdL)
- Germany: Gesellschaft für Umweltsimulation e.V. (GUS)
- Italy: Comitato di Studio per l’Inquinamento Atmosferico (CoSRIA/ATI)
- Netherlands: VVM – sectie Luchtkwaliteit en Klimaatverandering (VVM)
- Poland: Polish Chamber of Commerce for Sustainable Development (PIGE)
- Scotland: Environmental Protection Scotland (EPS)
- Spain: Plataforma X Aire Limpio (PxAL)
- Sweden: Swedish Clean Air Society (SCAS)
- Swiss Society for Air Pollution Prevention (CERCL’AIR)
- Turkey: Turkish National Committee for Air Pollution Research and Control (TUNCAP)
- United Kingdom: Environmental Protection UK (EP-UK)
Associate members
- United Kingdom: International Union of Air Pollution and Environmental Protection Associations (IUAPPA)
- Norway: NILU – Norwegian Institute for Air Research (NILU)
Observers
- Austria: Austrian Society for Air and Soil Pollution Prevention (ASASPP)