This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 869529
The pH value describes the water’s acidity level. Water bodies near Hannukainen typically have a neutral pH value, ranging from 7 to 7.5. However, during periods like spring floods, the pH level can drop to as low as 6.5. At the upper course of the Niesajoki river, the water is slightly more acidic, and the pH level is typically between 6.5 and 7. At times, the pH level can drop due to factors such as humus carried into water bodies by meltwater and rainwater.
Conductivity indicates the water’s ion balance, and based on it, we can estimate matters such as the water’s salinity level. The conductivity of water bodies near Hannukainen is typically low, meaning a level below 100 µS/cm and mainly a level of 50 µS/cm or below. The conductivity of the Niesajoki river is slightly higher, typically ranging from 100 to 200 µS/cm.
Turbidity is a measure of the clarity of water. The water’s turbidity level can increase, for instance, due to solid matters, such as humus. Water bodies in the Hannukainen area typically exhibit low turbidity levels, mainly below 1 FTU or NTU. The turbidity of the Niesajoki river is usually slightly higher, ranging from 5 to 10 NTU. Water bodies are usually most turbid during spring floods or directly after heavy rains.
Water levels in the Hannukainen area fluctuate greatly due to the amount of snow that accumulates during the winter and then melts within a relatively short period in the spring. Additionally, during dry periods like midsummer or midwinter, the water level can decrease to a level that is clearly lower than average. Heavy rainfall also has a noticeable effect on the water bodies.
