|
Indoor Environment
|
| People |
skin scales, microorganisms, tobacco,
smoke, hair, textile fibres |
| Cleaning Activities |
choice of material and chemicals |
| Machineries |
painting, welding and grinding |
| Construction Material |
fibrous insulation material, microorganisms
in wet wood |
|
Outdoor Environment
|
| Natural Processes |
wind, fire and natural cycle of plants |
| Manmade Processes |
fossil material waste disposal |