Division 1.4.1 Air emissions United Kingdom Original text. Later amendments are not shown. 1.4.1.1Diffuse emissions 1.4.1.2Channelled dust emissions 1.4.1.3Organic compound emissions 1.4.1.4Sulphur dioxide emissions ← Division 1.4 Division 1.4.1 Division 1.4.1.1 →