discuss about the damaging action of dust/powdersdiscuss about the damaging action of dust/powders

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brettd eNotes educator| Certified Educator

In the extreme, consider those people who work in environments with large amounts of sometimes toxic dust.  Coal miners, who in the old days would almost inevitably get "black lung", but still suffer much higher incidences of respiratory diseases.  Those volunteers and workers in the aftermath of 9/11 who ended up breathing toxic particles and have suffered all sorts of health complications as a result.  Breathing higher density particles can also collect in bronchial passages and deep in the lungs, which sometimes causes lungs to aspirate slowly, or may cause a person to be more susceptible to bronchitis/pneumonia.

justaguide eNotes educator| Certified Educator

The list would remain incomplete without mentioning asbestosis, the chronic inflammation and fibrosis of the lungs caused due to inhalation of asbestos fibers.

Those exposed to asbestos start to show symptoms only after several decades of exposure when it is no longer possible to do anything as the ailment currently does not have a cure.

giorgiana1976 | Student

Toxic action is done by the toxic dust that reaches the body causing a physio-pathological intoxication.
Allergic action. The phenomenon of sensitivity to allergising agents in the atmosphere is extremely widespread. There is a great number of people, with an allergic disease, more or less well expressed. Sensitizers agents can be found in any environment: our residence, in atmosphere or work environment. Thus, in atmosphere can be found particles of plant, such as pollen and fungi, that
trigger allergic phenomena, but they can not be considered pollutants.

Allergic phenomena occur more frequently in industrial environment. Workers who are working with wood, hemp, flax, wool, fur, rubber, flour, dyes, cosmetics, quinine, etc. can become allergic.