Characteristics μg/m3

TSP

Cadmium

Cobalt

Nickel

Concentration of January 2013 period

Min.

311.9

0.02

0.01

0.01

Max.

1280.0

0.10

0.27

0.45

Mean

794.2

0.07

0.08

0.09

Sd.

264.1

0.03

0.07

0.13

Concentration of July 2013 period

Min.

1669.0

0.01

0.02

0.02

Max.

3985.0

0.14

0.38

0.63

Mean

2807.5

0.07

0.10

0.19

Sd.

775.6

0.03

0.11

0.17

Iraqi national standards [12]

350 μg/m3

3 μg/m3

World allowable limits [2]

60 - 90 μg/m3

0.05

3

0.2