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How do rivers of Nysa, Rotterdam and Buzet and why ?

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The rivers in Nysa are more polluted than in Buzet.

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We were exploring the river -Młynówkę Bielicką in Mańkowice
(10 km from Nysa). We measured the water temperature, ph. We determined the water transparency.

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We have not received the results of the second group and present. We cannot say what the differences between the rivers in Nysa and Buzet are.

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The ph value is 7.4 which is alkaline. Plants can develop properly. The water temperature is dependent on the air temperature. The water has very good clarity.
The rivers in Nysa have an alkaline reaction.
The same surveys could be undertaken in a year's time to check, fot example, whether the water status has changed. People don't pump much of their wastewater into the river.

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Materials used: ph reagent, thermometer and jar.

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8. COMPARISON OF RESULTS WITH OTHER STUDIES

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8. COMPARISON OF RESULTS WITH OTHER STUDIES

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Compared to water measurments in the Nysa river in previous years (December 2016), water has the same reaction (alkaline reaction). Temperature of the river in Nysa is higher from the temperature in our river.

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The temperature from test days and ph may slighlty differ from the one recorded in the table.