1. A Bog Anni Julge, Mari-Liis Rand, Kätlin Otto 2012

2. About bogs Around 7000 bogs in Estonia Up to 10 000 years old Peat layer mostly 3 – 6 m. thick Bog walking Exotic bog – shoeing hikes all year round

4. Development of a bog Swamp –Less water –More water on a surface Transitional marsh –Terrestrialization Inosculation of a water body –Paludification Ground over saturated Bog –Final stage –Huge water supplies –Water can be hidden underground

7. Pihla bog Biggest bog in Hiiumaa –About 3050 ha Almost unhabited –Rare plants –Different animals

8. Beginnings of important watercourses Thickest peat layer in Hiiumaa –About 4 m Peat is also quarried

12. Water analysis of Pihla bog pH 6 –EU minimum value of swimming – pool water Ammonium level 0,05 mg/l –Recommended level –EU drinking water –Swimming – pool water –Fish – bowl water Phosphates level 0 mg/l

14. Water analysis of Pihla bog Nitrites level 0,02 mg/l –EU/USA drinking water –Fish – bowl water –Mineralwater Nitrate level 10 mg/l –Maximum level of food making water –EU/USA drinking water –Fish – bowl water –Mineral water

16. Thank you for your attention!