Location/site

Concentrations (ng/m³)

Reference

Bohus/Sweden:

0.25 Km from chlor-alkali plant

43.82

[11]

0.50 Km from chlor-alkali plant

26.55

[11]

1.5 Km from chlor-alkali plant

20.93

[11]

5.0 Km from chlor-alkali plant

19.46

[11]

Huelva (Spain)

96.00 (mean) (N = 5538)

[12]

Torrela Vega (Spain)

41.00 (N = 4401)

[12]

Monzon (Spain)

362.3 (N = 3901)

[12]