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Evaluation of the Influence of the Heavy Metals Content on the Possibility to Use the Waters from selected Strzelin Quarry Lakes for Agricultural Irrigation

100%

Jawecki B. , Pawłowska K.

tom Vol. 22, nr 3

1--10

The article presents the evaluation of the influence of the heavy metals content in the water from selected Strzelin Quarry Lakes located in Central Europe on the possibility to use the water for irrigation. The guidelines provided by FAO and in PN-84/C-04635 were the basis of the evaluation. The water pH ranged from 7.1–9.0, on average 7.8. The zinc content was in the range from 0.40–29.00 µg•dm-3, on the average 14.40 µg•dm-3, while the content of copper ranged from 0.00–50.10 µg•dm-3, on average 21.13 µg•dm-3. The cadmium content fell into the range from 0.00–5.50 µg•dm-3, on the average 0.83 µg•dm-3, and the lead content ranged from 0.00–18.10 µg•dm-3, on average 3.16 µg•dm-3. The chromium content ranged from 0.00–21.00 µg•dm-3, on average 4.26 µg•dm-3 and, finally, the content of nickel ranged from 0.00–39.80 µg•dm-3, on average 6.70 µg•dm-3. The values of the analysed heavy metals were similar to the concentrations noted in natural lakes and artificial water reservoirs. As far as the heavy metal content is concerned, the water from the selected Strzelin Quarry Lakes met the requirements that allow using it for the purposes of agricultural irrigation.

The influence of new legal regulations on the method of determining the amount of fees for discharging rain water and snow water to water

80%

Jawecki B. , Sobota M. , Burszta-Adamiak E.

Ekonomia i Środowisko

2019

tom nr 1

37--56

In article was analyzed procedure of determining fees for water services connected with discharging rain water and snow water to water, as a result of the new Water Law, which came into force on the 1st of January 2018. First of all, authors compare the scope of water law permits – connected with the aforementioned matter – issued under the Water Law of 2001 (currently not in force) to those issued under the new Water Law of 2017 (currently in force since the 1st of January 2018). Authors indicate that – within the new Water Law – water law permit issued before the 31st of December 2017 is the fundamental source of information related to determining fees for discharging rain water and snow water to water. Such situation can lead to interpretational doubts of legal provisions related to the aforementioned matter. Results of the analysis conducted by the authors of this paper indicate crucial differences within amounts of fees for discharging rain water and snow water, paid by the obliged entities. Such differences result from the method of determining certain amounts of fees and also from the interpretation of the new Water Law and implementing regulations.