[Evaluation of the status of nasal mucosa in workers engaged in the production of chlorfenvinphos (enolophos)].

In 41 men aged from 23 to 59 years (on an average--37.5 years) and employment duration from 1-10 years (on an average--4.9 years) working in the division of chlorfenvinphos synthesis and manufacturing "enolophos"--a preparation for agriculture, laryngological examinations were carried out including cytologic assessment of nasal mucosa and olfactometric tests. Rhinoscopy as well as cytological examinations confirmed the higher prevalence of nasal mucosa changes of inflammatory or allergic character as compared to the control group. The association between duration of employment and the changes perceived was found. Simultaneously olfactometric tests revealed in this group of workers frequent lowering of odours sensation and identification threshold.