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Technical Reports Parts C,D - ICPDR

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46 Danube Pollution Reduction Programme – National Review, Ukraine<br />

Figure 4.16.<br />

Zn (2+) content in Danube water, Reni town<br />

250<br />

200<br />

150<br />

(<br />

100<br />

50<br />

1995<br />

1994<br />

0<br />

1994<br />

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec<br />

1995<br />

Mn (tot.) variation (1994-1997)<br />

30<br />

25<br />

20<br />

15<br />

Reni<br />

Vilkovo<br />

10<br />

Con 1993 1994 1995 1996 1997<br />

Year<br />

Figure 4.17.<br />

Variations of the heavy metals content in the major tributaries of the river Danube are much more<br />

significant, especially for zinc (65 - 132 mkg/L in Tisza, 0 - 92 mkg/L in Prut) and chromium (2,1 -<br />

39mkg/L for Tisza, 1,6 - 75,8 mkg/L for Uzh, 0 - 48 mkg/L for Prut). While there are not available<br />

data on copper concentrations in Tisza and Uzh, the data on copper content varies significantly in<br />

water of the river Prut nearby the city Chernivtsi. These elevated levels of the heavy metals<br />

(comparing to the existing standards) affect the water quality for recreation and fisheries uses.

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