The results are in: Flen Vatten Blitz Autumn 2017
51 samples were taken in lakes (55%), streams (25%), ponds, urban reservoirs and smaller brooks from across the Flen municipality by 39 participants between 30th September and 1st October.
Participants recorded observations for vegetation cover, land use, litter and tested for nutrients; phosphate and nitrate. Although many water bodies are brownified, the nutrient data showed that for the autumn period 2017 most lakes, rivers and ponds in the Flen municipality have a good ecological status with nutrient levels below acceptable levels for nitrate (1.0 mg N-NO3/l) and phosphate (0.1 mg P-PO4/l). Only a small percentages of the lakes and rivers showed signs of litter pollution or algae presence.
We hope to run another Flen Vatten Blitz during spring 2018 to see if and how the environment changes over time. We hope all those who took part enjoyed themselves, and are keen to participate in the next Blitz. If you are interested to get more involved please visit our webpage.
The amount of water bodies sampled for each level of nitrate (mg N-NO3/l; left) and phosphate (mg P-PO4/l; right). A healthy water body would have nitrate and phosphate below 1.0 mg/l and 0.1 mg/l respectively.