False-colour scanning electron micrograph of fly ash,a common atmospheric pollutant emitted from coal-fired power stations. Fly ash is the end product of coal combustion. It can be prevented from escaping from the power station stacks,to some degree,by the use of electrostatic scrubbers and can be recycled for use as ballast in the construction industry | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Fisher, Dr. Gerald L. |
Taille de l’image : | 3875 px × 4618 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |