<prompt> Byssinosis is seen in -Cement factoriesTextile industriesIron factoriesGrain fields  <response>: - byssinosis is due to inhalation of cotton fibre dust over long periods of time. - the symptoms are chronic cough and progressive dyspnoea ending in chronic bronchitis and emphysema. - India has a large textile industry employing 35 percent of factory workers and incidence of this disease is repoed to be 7-8 percent. Reference : Parks textbook of preventive and social medicine, 23rd edition, pg no:806 p 