Caspian Sea 2011

2010

Table 2. Average concentration of pollutants in the waters of the North Caspian from 1993-2002 (Korshenko and Gul, 2005).

Year, month, region

1993 June (1)

1994 June (1)

1995 July- August (1)

1996 July- August (1)

2000 July (1)

2000 Novem- ber (2)

2001 June (1)

2001 Decem- ber (2)

2002 August (1)

2002 October (2)

Pollutant

TPHs (mg/l)

0.049 0.050 0.021 0.020 0.121 0.027 0.151 0.109 0.010 0.008

Phenols (mg/l)

-

-

-

-

-

0.003

-

0.003

-

0.008

Less than DL*

Detergents (mg/L)

-

-

-

-

-

0.032

-

0.033

-

NH 4 (µg /l

490.3 203.7 204.8

-

192.6

-

701.2

74.7

30.8

14.0

DDT (ng/l

0.300 0.353 0.175 0.110

-

-

-

-

-

0.244

DDE (ng/l)

0.050 0.073 0.043 0.025

-

-

-

-

-

0.010

Less than DL**

DDD (ng/l)

0.069 0.090 0.020 0.007

-

-

-

-

-

α -HCH (ng/l)

0.070 0.108 0.080 0.029

-

-

-

-

-

3.460

γ -HCH (ng/l)

0.030 0.034 0.025 0.006

-

-

-

-

-

1.394

Fe (µg/l)

-

-

-

-

-

35.6

-

32.2

-

24.0

Mn (µg/l)

-

-

-

-

-

3.6

-

3.0

-

1.3

Zn (µg/l)

-

-

-

1.1

-

5.6

-

4.5

-

7.1

Ni (µg/l)

1.3

-

0

0

-

2.1

-

2.1

-

2.4

Cu (µg/l)

1.2

1.2

0.1

0.1

-

3.1

-

2.8

-

4.3

Pb (µg/l)

0.15

0.1

0.1

0.1

-

4.9

-

4.1

-

0.5

Cd (µg/l)

0.1

0.1

0.1

0.1

-

0.7

-

0.5

-

0.2

*Detection limit 0.025 mg/l; ** Detection limit 0.05 ng/l

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