Table 2 Demographic and occupational characteristics of the participants (n = 30).

From: Seasonal changes in health risks due to exposure to MTBE among workers of a refinery

Parameter

Range

Mean ± Standard deviation

Age (years)

28–58

42.5 ± 8.2

Body weight (kilograms)

58–98

75.4 ± 10.1

Work experience (years)

1–32

15.3 ± 6.7

Working days per year

220–280

250 ± 15

Daily exposure duration (hours)

6–10

8.2 ± 1.1