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Table 1 Environmental and biological monitoring

From: Evaluation of immunological, inflammatory, and oxidative stress biomarkers in gasoline station attendants

 

Non-exposed group (n = 28)

GSA group (n = 38)

ACGIH limits

Benzene (μg m− 3)

43.3 (35.3–63.3)

105.9 (63.3–216.8)a

1600.0

Toluene (μg m− 3)

107.4 (85.9–201.3)

311.5 (207.7–578.2)a

75,260.0

o-Xylene (μg m− 3)

37.5 (23.0–224.4)

59.4 (29.5–433.2)a

 

m-Xylene (μg m− 3)

20.1 (17.4–25.6)

32.5 (27.8–37.4)a

433,540.0*

p-Xylene (μg m− 3)

21.2 (18.4–27.0)

31.0 (22.2–34.6)a

 

t,t-MA (μg g− 1 creatinine)

74.8 (47.6–121.5)

421.9 (292.2–694.6)a

500.0

HA (g g− 1 creatinine)

0.3 (0.2–0.4)

0.3 (0.2–0.6)

1.6

m-HA (g g− 1 creatinine)

n.d.

n.d.

1.5

  1. The values are expressed as median (interquartile range)
  2. t,t-MA trans,trans-muconic acid, HA hippuric acid, mHA methylhippuric acid, n.d. not detectable
  3. *total value to the sum of xylene isomers
  4. ap < 0.001