| Source type | Notes | Proposed action/criteria |
| Chalk | Only large quarries extracting industrial chalk need be considered. Material is soft, easily crushed, and absorbs water. Potential for dust emissions is low | No further assessment unless properties within 100 metres |
| China Clay | Material extracted wet, but there is potential for dust emissions from soil stripping and overburden. | No further assessment unless properties within 100 metres |
| Common clays/ shale | Material extracted wet, but there is potential for dust emissions from soil stripping and overburden | No further assessment unless properties within 100 metres |
| Opencast coal | Overburden handling and materials haulage are main emissions sources. | Second/Third Stage R&A advised if >150 hectares (total site area) and properties within 400 metres |
| Gypsum/anhydrite | Material is soft, easily crushed, but potential emissions from grading plant | Second/Third Stage R&A advised if properties within 200 metres |
| Igneous rock | Soil stripping and overburden removal is low, but potential for emissions during blasting | Second/Third Stage R&A advised if properties within 200 metres |
| Limestone/dolomite | Soil stripping and overburden removal is low, but potential for emissions during blasting | Second/Third Stage R&A advised if properties within 200 metres |
| Sand/gravel | Material usually extracted wet, but potential for dust emissions from drying plant/stockpiles | Second/Third Stage R&A advised if properties within 200 metres of plant or stockpiles |
| Landfill operations | Tipping and/or surface soil movement may give rise to emissions | Second/Third Stage R&A advised if properties within 200 metres |