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Magelungen
Magelungen () is one of the biggest lakes in Stockholm, Sweden, located between the municipalities of Stockholm and Huddinge. It is considered as of great recreational value and is popular for bathing, yachting, and fishing in summers, and tour skating in winters. The lake borders two nature reserves: Fagersjöskogen/ Farstanäset and Rågsved Open-Air Area. Catchment area Less than half of the catchment area is composed of forest and open grasslands. Some 10 per cent is wetlands and parks, and the remaining area is covered by one-family houses and blocks of flats. Two bridges cross the lake; several major roads pass through the catchment area, as do the above ground tracks of the metro and suburban railway. South of the lake is a larger continuous forest, a golf course, and an open-air centre. Besides the nature reserve, areas on the northern side are used for riding and Allotment-gardens.Vattenprogram, p 9.3-9.4 The primary catchment area is relatively small and compo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kräppladiket
Kräppladiket is one of the four inflow rivers of Lake Magelungen in southern Stockholm, Sweden. It empties into the lake in its northern end together with Magelungsdiket and Norrån while Djupån joins the lake on its southern end. In contrast to Magelungsdiket, Kräppladiket was not considerably affected by the construction of the south-western suburbs in the early 1950s, but important part of the ditch was however guided through culverts limiting the open stream to the 1,4 km passing through the Rågsved Open-air Area south of Rågsved. A bit less than 50 per cent of the catchment area is occupied by one-family houses and green spaces. The upper reach of the ditch is thus affected by relatively low levels of phosphorus and nitrogen, while samples by the lower reach, next to the Snösätra industrial area, showed a presence of high levels of metals. The mouth of Kräppladiket is located in a Reed bed and no defined outflow exists.Vattenprogram, p 9.4 In 2006 works ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magelungsdiket
Magelungsdiket ( sv, Magelungen Ditch) is one of three inflows of Lake Magelungen in southern Stockholm, Sweden. It empties into the lake from north together with Kräppladiket while Djupån reaches the southern end of the lake. Magelungsdiket had a drainage area of 17 km² stretching north to Mälarhöjden until the south-western suburbs of Stockholm were built in the early 1950s and water was guided to Lake Mälaren through stormwater pipes. Today only 1,5 km² remains of the drainage area and most of the contributions comes from one-family houses in eastern Rågsved and green areas around Magelungen. Water flow is slow, often stagnant, and the ditch is surrounded by dense vegetation. It opened out in a wetland drained in 1994 in order to create canals and minor islands attracting birds. Very high levels of metals have been reported from a street inlet near the outlet.Vattenprogram, p 9.3 Together with Kräpplingadiket, it is estimated to contribute some 100&n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forsån
Forsån ( Swedish: "Rapids' Stream") is a stream in southern Stockholm, Sweden. It is also known as Stortorpsån and Forsen. Leaving lake Magelungen calmly by a small sandy beach, Forsån's upper reach passes through a furrow blown in the 1860s to lower the level of the lake resulting in the present wide torrents passing through the bedrock. In contrast, the last 500 metres of the course are characterized by flat shores and stagnant, overgrown waters. The stream has a vigorous population of signal crayfish and is the only winter habitat in Stockholm for white-throated dipper.Forsån Catchment area Approximately half of the catchment area is occupied by contaminated ground and polluting operations in the Larsboda industrial area; with the remaining area composed of parks and green spaces. One of the minor allotment-garden's is located in an area which is crossed by two major traffic routes and a railway.Vattenprogram, p 30.2 Environmental influence The inflow from Magel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ågestasjön
Ågestasjön ( Swedish for "Lake of Ågesta") is a small lake in Huddinge Municipality south of Stockholm, Sweden. Ågestasjön forms part of the Tyresån Lake System and, with a biodiversity unique in the Stockholm region, is highly popular among birdwatchers and ornithologists. The lake also forms part of the Orlången Nature Reserve and one of the green wedges stretching into central Stockholm. The lakes receives water from Lake Trehörningen and in its northern end empties into Magelungen. For a brief history of the area see Trehörningen. Catchment area The lake and the wetlands around it was transformed into a bird protection area in 1976, which means the area is inaccessible to the public from April 15 to July 15 and hunting, hunting equipment, and dogs are prohibited all seasons. Most of the area within a radius of 300 metres from the lake is subject to special restrictions. Except for birdwatchers, the lake and its surrounding also attracts open-air lover ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norrån
Norrån is a river in Södermanland Södermanland ( or ), locally Sörmland, sometimes referred to under its Latin form ''Sudermannia'' or ''Sudermania'', is a historical province or ''landskap'' on the south eastern coast of Sweden. It borders Östergötland, Närke, Västman ..., Sweden. External links Norrån Rivers of Stockholm County {{Sweden-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huddinge Municipality
Huddinge Municipality ( sv, Huddinge kommun) is a municipality in Stockholm County, east central Sweden. Its seat is located in Huddinge (), which is a part of Stockholm urban area. The municipality is, with its approximately 110,000 inhabitants, the second most populated in Stockholm County. Geography The municipality covers the entire central part of the Södertörn peninsula. More than half of the land area consists of agriculture, forests, hills, or lakes, and it contains 13 nature reserves. Huddinge borders the following municipalities: Stockholm Municipality, Ekerö Municipality (by water), Botkyrka Municipality, Haninge Municipality and Tyresö Municipality (by water). Localities *Stockholm urban area (part of) 86,802 inh. * Vidja 633 inh. *Rural areas 2,465 inh. Subdivisions Huddinge municipality is sub-divided into six districts: * Flemingsberg (pop. 14,924) * Segeltorp (pop. 11,870) * Sjödalen- Fullersta (pop. 22,304) * Skogås (pop. 13,783) * Stuvsta- Snätt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drevviken
Drevviken is a lake in southern Stockholm, Sweden, shared by the four municipalities Stockholm, Haninge, Huddinge, and Tyresö. While much of the surrounding area is used for one-family houses, the lake and the green space north of it are considered to be of great recreational and natural importance and forms part of a suggested nature reserve around lake Flaten.Drevviken Catchment area Approximately two-thirds of the catchment area is occupied by settlements, mostly one-family houses. Three major industrial areas are located within the catchment area which is mostly dominated by forests with minor open grasslands. North of the lake is a deciduous forest containing herbaceous plants and rocks covered with brushwoods and lichen. Additionally, there is a fluvio-glacial deposit with a broad irrigated marsh and a scenic pine forest; and a wetland which is the remnant of a former stream.Vattenprogram, p 10.3-10.6 Environmental influence Stormwater from several suburbs empti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc
Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table. In some respects, zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size.The elements are from different metal groups. See periodic table. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity ( electrowinning). Zinc is an essential trace element for humans, animals, plants and for microorganisms and is necessary for prenatal and postnatal development. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metric Ton
The tonne ( or ; symbol: t) is a unit of mass equal to 1000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton to distinguish it from the non-metric units of the short ton ( United States customary units), and the long ton ( British imperial units). It is equivalent to approximately 2204.6 pounds, 1.102 short tons, and 0.984 long tons. The official SI unit is the megagram (symbol: Mg), a less common way to express the same mass. Symbol and abbreviations The BIPM symbol for the tonne is t, adopted at the same time as the unit in 1879.Table 6 . BIPM. Retrieved on 2011-07-10. Its use is also official for the metric ton in the United States, having been adopted by the United States |
Nitrogen
Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N2, a colorless and odorless diatomic gas. N2 forms about 78% of Earth's atmosphere, making it the most abundant uncombined element. Nitrogen occurs in all organisms, primarily in amino acids (and thus proteins), in the nucleic acids ( DNA and RNA) and in the energy transfer molecule adenosine triphosphate. The human body contains about 3% nitrogen by mass, the fourth most abundant element in the body after oxygen, carbon, and hydrogen. The nitrogen cycle describes the movement of the element from the air, into the biosphere and organic compounds, then back into the atmosphere. Many industrially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrogen Sulphide
Hydrogen sulfide is a chemical compound with the formula . It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. The underground mine gas term for foul-smelling hydrogen sulfide-rich gas mixtures is ''stinkdamp''. Swedish chemist Carl Wilhelm Scheele is credited with having discovered the chemical composition of purified hydrogen sulfide in 1777. The British English spelling of this compound is hydrogen sulphide, a spelling no longer recommended by the Royal Society of Chemistry or the International Union of Pure and Applied Chemistry. Hydrogen sulfide is toxic to humans and most other animals by inhibiting cellular respiration in a manner similar to hydrogen cyanide. When it is inhaled or it or its salts are ingested in high amounts, damage to organs occurs rapidly with symptoms ranging from breathing difficulties to convulsions and death. Despite this, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stockholm
Stockholm () is the Capital city, capital and List of urban areas in Sweden by population, most populous city of Sweden as well as the List of urban areas in the Nordic countries, largest urban area in the Nordic countries. Approximately 1 million people live in the Stockholm Municipality, municipality, with 1.6 million in the Stockholm urban area, urban area, and 2.4 million in the Metropolitan Stockholm, metropolitan area. The city stretches across fourteen islands where Mälaren, Lake Mälaren flows into the Baltic Sea. Outside the city to the east, and along the coast, is the island chain of the Stockholm archipelago. The area has been settled since the Stone Age, in the 6th millennium BC, and was founded as a city in 1252 by Swedish statesman Birger Jarl. The city serves as the county seat of Stockholm County. Stockholm is the cultural, media, political, and economic centre of Sweden. The Stockholm region alone accounts for over a third of the country's Gross d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
