Division 1.9.1 Air emissions United Kingdom Original text. Later amendments are not shown. 1.9.1.1Diffuse emissions 1.9.1.2Dust and PAH emissions 1.9.1.3Sulphur dioxide emissions 1.9.1.4Organic compound emissions ← Division 1.9 Division 1.9.1 Division 1.9.1.1 →