Pöyrysjärvi (Myrskylä)
Encyclopedia
Pöyrysjärvi is a lake surrounded by the open bog on the border are of the town of Orimattila
and municipality of Myrskylä
. It is classied as a precious natural reserve in Päijänne Tavastia
county. Apart from that the city of Orimattila
classifies it as an important object for teaching of marsh types and its fauna.
The other lakes connected to the Myrskylänjoki watershed are Isojärvi, Vähäjärvi, Muttilanjärvi, Siippo, Sopajärvi, Kirkkojärvi ja Sulkavanjärvi.
Orimattila
Orimattila is a town and municipality of Finland.It is located in the Päijänne Tavastia region. The municipality has a population of and covers an area of of which is water. The population density is .The municipality is unilingually Finnish....
and municipality of Myrskylä
Myrskylä
Myrskylä is a municipality of Finland. It is located in the Uusimaa region. The municipality has a population of and covers an area of of which is water. The population density is ....
. It is classied as a precious natural reserve in Päijänne Tavastia
Päijänne Tavastia
Päijänne Tavastia is a region in Southern Finland south of the lake Päijänne. It borders the regions Uusimaa, Tavastia Proper, Pirkanmaa, Central Finland, Southern Savonia and Kymenlaakso.- Historical provinces :...
county. Apart from that the city of Orimattila
Orimattila
Orimattila is a town and municipality of Finland.It is located in the Päijänne Tavastia region. The municipality has a population of and covers an area of of which is water. The population density is .The municipality is unilingually Finnish....
classifies it as an important object for teaching of marsh types and its fauna.
The other lakes connected to the Myrskylänjoki watershed are Isojärvi, Vähäjärvi, Muttilanjärvi, Siippo, Sopajärvi, Kirkkojärvi ja Sulkavanjärvi.
Environmental issues
The town of Orimattila measures every fifth or sixth year some parametres related to the water. 10 July 2006 the results were:- solids: 0,029 g/l
- oxygenOxygenOxygen is the element with atomic number 8 and represented by the symbol O. Its name derives from the Greek roots ὀξύς and -γενής , because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition...
-%: 24.0 (on the surface) / 8.87 ml/l (on the surface), 11.3% (on the bottom) / 1.1 ml/l (on the bottom) - Redox pot. (Mv): 307.0
- pHPHIn chemistry, pH is a measure of the acidity or basicity of an aqueous solution. Pure water is said to be neutral, with a pH close to 7.0 at . Solutions with a pH less than 7 are said to be acidic and solutions with a pH greater than 7 are basic or alkaline...
: 4.2 - total phosphorPhosphorA phosphor, most generally, is a substance that exhibits the phenomenon of luminescence. Somewhat confusingly, this includes both phosphorescent materials, which show a slow decay in brightness , and fluorescent materials, where the emission decay takes place over tens of nanoseconds...
: 15 μg/l - total nitrogenNitrogenNitrogen is a chemical element that has the symbol N, atomic number of 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless, and mostly inert diatomic gas at standard conditions, constituting 78.08% by volume of Earth's atmosphere...
: 380 μg/l - total chlorophyllChlorophyllChlorophyll is a green pigment found in almost all plants, algae, and cyanobacteria. Its name is derived from the Greek words χλωρος, chloros and φύλλον, phyllon . Chlorophyll is an extremely important biomolecule, critical in photosynthesis, which allows plants to obtain energy from light...
: 15 μg/l