Biomonitoring of DNA Damage in Photocopiers' Workers From Peshawar, Khyber Pakhtunkhwa, Pakistan.

Khisroon, Muhammad; Khan, Ajmal; Hassan, Nazia; Zaidi, Farrah; Farooqi, Javeed · J Occup Environ Med · 2020

cross_sectional · Level IV

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Abstract

The study was performed to know about the extent of occupational DNA damage in photocopiers' workers. Blood samples were collected from 136 exposed group and 74 control group. Comet assay was performed to assess the DNA damage caused by emissions from photocopiers. The results indicated that there was a significant increase (P < 0.05) in DNA damage in persons working in photocopiers (122.1 ± 60.7) than the controls (56.6 ± 17.2). Duration of occupational exposure had positive correlation (r = 0.793, P < 0.001) with DNA damage. Age had significant effects on the total comet score (TCS) of the exposed group as compared to the control group (P < 0.05). In conclusion, these findings indicate significant genotoxicity in photocopiers' workers.

Medical subject headings