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Table 2 Concentrations of HBCD (pg m−3) and proportions of isomers (%) in particulate samples

From: Human health risk assessment from exposure to multiple sources of Hexabromocyclododecanes (HBCDs) in Taiwan

 

March 22, 12:00 p.m. to

March 24, 12:00 p.m

March 24, 1:00 p.m. to

March 26, 1:00 p.m

March 26, 2:00 p.m. to

March 28, 2:00 p.m

Sanchung

α

β

γ

ΣHBCD

α

β

γ

ΣHBCD

α

β

γ

ΣHBCD

 > 7.2 μm

34.2

13.8

52.0

2.2

52.0

8.7

39.3

1.1

55.0

13.6

31.4

1.1

3.0 − 7.2 μm

29.0

11.8

59.2

2.6

40.1

-

59.9

0.4

-

-

-

N.D

1.5 − 3.0 μm

24.5

12.2

63.3

1.1

-

-

-

N.D

-

-

-

N.D

0.95 − 1.5 μm

-

-

100.0

0.3

-

-

-

N.D

-

-

-

N.D

0.49 − 0.95 μm

-

-

-

N.D

-

-

-

N.D

-

-

-

N.D

 < 0.49 μm

39.3

-

60.7

0.3

52.4

-

47.6

0.5

12.9

-

87.1

1.5

Sum

29.3

11.5

59.3

6.6

49.8

4.7

45.5

2.0

30.8

5.8

63.3

2.6

Taichung

α

β

γ

ΣHBCD

α

β

γ

ΣHBCD

α

β

γ

ΣHBCD

 > 7.2 μm

-

-

100.0

0.1

-

-

-

N.D

100.0

-

-

0.2

3.0 − 7.2 μm

-

-

-

N.D

-

-

100.0

0.1

-

-

-

N.D

1.5 − 3.0 μm

-

-

100.0

0.3

-

-

-

N.D

-

-

-

N.D

0.95 − 1.5 μm

-

43.4

56.6

0.2

-

-

-

N.D

-

-

-

N.D

0.49 − 0.95 μm

-

-

-

N.D

-

-

-

N.D

-

-

-

N.D

 < 0.49 μm

-

-

-

N.D

-

-

-

N.D

-

-

-

N.D

Sum

-

16.4

83.6

0.6

-

-

100.0

0.1

100.0

-

-

0.2

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Sustainable Environment Research

ISSN: 2468-2039

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