It causes poor ventilation and specific sources such as copy machines, electrical and telephone cables, carpets etc. It has been found that air in some office buildings is hundred times more polluted that the air outside. In many occupations however people become aware of the risk only years after they worked at jobs that they thought were safe... displayed 300 characters
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It has been found that air in some office buildings is hundred times more polluted that the air outside. In many occupations however people become aware of the risk only years after they worked at jobs that they thought were safe. For e.g. several million people worked with asbestos during and after world war two... displayed 300 characters
