Table 2 Personal, indoor and outdoor concentrations of toluene ( μg/m³) in the six periods

1^st – SEP

90.7

79.6

53.0–130.8

58.4

50.6

23.1–81.6

99.8

84.1

37.3–256.8

2^nd – DEC

72.0

69.6

46.1–120.7

57.2

41.0

21.5–131.3

76.7

68.2

22.7–225.6

3^rd – FEB

74.9

63.0

35.2–123.1

46.6

39.6

13.8–68.4

74.8

65.5

34.2–143.8

4^th – APR

80.1

58.9

34.7–147.8

48.2

37.0

15.9–79.9

59.6

53.9

19.5–125.4

5^th – JUN

58.2

53.3

26.2–97.8

44.9

30.4

16.2–97.0

53.3

46.9

18.2–113.1

6^th – SEP

69.4

59.0

30.7–109.1

40.5

33.1

17.5–67.6

77.7

66.3

29.0–241.1

Annual

74.3

63.0

34.1–115.5

49.2

38.9

19.4–82.5

73.6

63.3

18.2–256.8