On the 8th of October, we
finished the task 2 and 3 at Pieni-Valkeinen and Iso-Valkeinen.
Taking water samples
The task was to take water samples into
plastic bottles. We took samples from three different locations: Incoming
streams of Pieni- and Iso-Valkeinen, and outgoing stream of Pieni-Valkeinen. We
cooperated with group number 5. We didn’t fill the bottles to the brim, because
samples are going to be frozen before we analyze them.
First we took the sample from the incoming
stream of Pieni-Valkeinen. We had small problems with getting to the sampling
location. One of the student’s rubber boots got stuck in the swamp! Luckily Tatu
came to the rescue with dry socks. The terrain was very swampy, moist and
rough.
Bottling action from close and far.
Then we took samples from the outgoing
stream of Pieni-Valkeinen and lastly from incoming stream of Iso-Valkeinen.
Sampling from these two locations went smoothly and without problems.
Taking samples from Iso-Valkeinen
Field Measurements
We have measured the pH-value, oxygen,
conductivity and the temperature at 3 different points of the lake (outgoing
stream/ Incoming stream Pieni- Valkeinen and Iso-Valkeinen). We also checked the
smell of the water at all measure points.
Incoming stream of Pieni-Valkeinen
pH-value: 7,21
oxygen: 8,64
mg/l
conductivity:
213,85 µs/cm
temperature:
4,13°C
The smell was muddy.
Outgoing stream of Pieni-Valkeinen
pH-value: 7,01
oxygen: 6,14
mg/l
conductivity:
94,7 µs/cm
temperature: 5°C
There was no smell of the
water.
Incoming stream of Iso-Valkeinen
pH-value: 7,62
oxygen: 9,75 mg/l
conductivity: 138,0
μs/cm
Temperature: 7
°C
Water was clear and there was no unpleasant
smell.
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