Water

a)	Diagrams showing results of surface water quality measurements as mean values of selected group indicators in the 1995 - 1996 period. Primary data is found in the central IOZIP database (at IMIP). Data was obtained from Prague Sewage and Water Management Company and the Czech Hydrometeorological Institute.

b)	The map based on a 1995 - 1997 study prepared for the Municipal Authority of the City of Prague by Vltava River Authority in cooperation with Hydroinform company.

tridy jakosti v povrchovych tocich podle CSN 75 7221, obdobi 1995 - 1996
= surface stream water quality classes in accordance with CSN 75 7221 Czech National Standard,1995 to 1996
A ukazatele kyslikoveho rezimu = A oxygen regimen indicators
B chemicke ukazatele zakladni = B basic chemical indicators
C chemicke ukazatele doplnujici = C supplementary chemical indicators
D tezke kovy = D heavy metals
E biologicke a mikrobiologicke ukazatele = E biological and microbiological indicators

toky podle ukazatele BSK5 = surface stream water quality according to BOD5
2 - clear water
3 - polluted water
4 - heavily polluted water
5 - very heavily polluted water
ostatní nemerene toky = other unmeasured streams

PREVIEW	DETAIL	NOTE	LEGEND
	Water quality in surface streams, 1996	a	1
	Q100 flood line - result of a model calculation	b