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Assessment of hygienic and sanitary states of well and spring waters in Wigry National Park, Poland

100%

Niewolak S.

Polish Journal of Environmental Studies

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1998

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tom 07

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nr 2

This paper presents data on conductivity, pH, hardness, NH4-N, N03-N and Mn content in water of 49 selected wells, counts of TVC 20°C, TVC 37°C, TC, FC, FS and CP in water of 302 wells (0.3 - 31.5 m) in 30 localities, and from 8 natural springs in Wigry National Park in northeast Poland. Surveys were carried out twice: in spring and autumn 1995. Conductivity of well water was 360-1430 mS/cm3, pH 7.2-8.6, water hardness 172-544 mval/cm3, content of NH4-N 0-0.21 mg/dm3, N03-N 0-30.00 mg/dm3, Mn 0-1.00 mg/dm3. The majority of the surveyed wells had TVC 20°C. TVC 37°C, TC and FC counts exceeding permissible levels, and very high numbers of FC. Single wells had water containing CP. High numbers of these micro-organisms were present in shallow waters (less than 10 m) as well as in deep wells (more than 10 m). The degree of bacteriological contamination of well waters was usually lower in spring and higher in autumn. Higher bacteriological pollution of well water was often accompanied by higher N03-N concentrations. Natural springs were usually characterised by lower bacteriological contamination than well water.

2

Upper Vistula River: response of aquatic communities to pollution and impoundment. IV. Chemical and bacteriological indices of water quality

100%

Starzecka A.

Polish Journal of Ecology

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2002

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tom 50

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nr 2

The water quality and its changes in Upper Vistula River on the sector between 10.9 and 336.7 km of its course were carried out in annual cycle in the years 1997-1998. The classification of water comprised four classes of purity (I-IV) and based on the 5 biological and 5 chemical features of water. Particular classes were characterized by numerical taxonomic value of pollution (NTVP): 1.0-1.5 - class I, very pure water; 1.5-2.5 - class II, relatively pure water; 2.5-3.5 - class III, polluted water; 315-4.0 - class IV, very heavily polluted water. On the investigated section of the Vistula River three stretches might he distinguished: the first one between 10.9 and 66.2 km of the river course; the second from 115.6 to 248.2 km and the third at 336.7 km of the river course. On the basis of the mean annual values of biological and chemical features together, relatively pure water (II class purity) with NTVP ranging from 1.87 to 2.37 was noticed on the first investigated river stretch. The greatest pollution was shown on the second stretch, where NTVP ranged from 2.56 to 2.82 which corresponded to III class of water purity. On the third stretch the water was relatively pure (II class of purity) with NTVP 2.32.

3

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Wskażnik coli i bakteriologiczne normy sanitarne w badaniu wody

67%

Buczowska Z.

Roczniki Państwowego Zakładu Higieny

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1957

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tom 08

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nr 3

Ograniczanie wyników

1 Polish Journal of Ecology

1 Polish Journal of Environmental Studies

1 Roczniki Państwowego Zakładu Higieny

1 Buczowska Z.

1 Niewolak S.

1 Starzecka A.

1 2002

1 1998

1 1957

Assessment of hygienic and sanitary states of well and spring waters in Wigry National Park, Poland

Upper Vistula River: response of aquatic communities to pollution and impoundment. IV. Chemical and bacteriological indices of water quality

Wskażnik coli i bakteriologiczne normy sanitarne w badaniu wody