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to Forsån, the contribution from the catchment area itself, 10 kg and 40 kg respectively, is insignificant in comparison. No estimates of the level of metals brought to the stream has been done, but low or moderate levels of common metals were reported in river sediments in 1997. Although
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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
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Approximately half of the catchment area is occupied by contaminated ground and polluting operations in the
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industrial area; with the remaining area composed of parks and green spaces. One of the minor
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Samples of bottom fauna taken in 1998 documented the presence of nationally rare species of
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have been introduced in the stream, of which the former succeeded in establishing while
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164:'s is located in an area which is crossed by two major traffic routes and a railway.
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rapids make a section of the stream ice-free during the winter time which attracts
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350:(in Swedish). Stockholm vatten. 2007-03-01. Archived from
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235:is believed to be unfavourable to the latter. The
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211:; and during the preceding decades two species of
172:The inflow from Magelungen brings approximately 2
140:waters. The stream has a vigorous population of
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189:next to the road Magelungsvägen were reported.
372:(in Swedish). Stockholm vatten. Archived from
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367:"Vattenprogram för Stockholm 2000 - Forsån"
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215:gastropods were documented. Larvae of
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97:0.8 km (0.31 sq mi)
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223:were recorded in summer 2000.
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51:Physical characteristics
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438:Rivers of Stockholm County
89:1.4 km (0.87 mi)
110:: "Rapids' Stream") is a
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168:Environmental influence
122:. It is also known as
433:Geography of Stockholm
261:Geography of Stockholm
247:. In 1996, traces of
241:white-throated dippers
217:white-legged damselfly
409:59.23611°N 18.12167°E
333:Vattenprogram, p 30.3
324:Vattenprogram, p 30.2
221:blue-tailed damselfly
204:Hippeutis complanatus
146:white-throated dipper
185:very high levels of
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414:59.23611; 18.12167
245:common kingfishers
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266:Rivers of Sweden
162:allotment-garden
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251:were reported.
225:Signal crayfish
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180:and 30 tons of
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142:signal crayfish
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16:River in Sweden
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152:Catchment area
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379:on 2007-09-27
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354:on 2007-09-27
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135:Leaving lake
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381:. Retrieved
374:the original
356:. Retrieved
352:the original
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296:. Retrieved
294:(in Swedish)
207:and bivalve
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114:in southern
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412: /
237:white water
209:swan mussel
124:Stortorpsån
427:Categories
397:59°14′10″N
383:2007-06-05
358:2007-06-05
341:References
199:gastropods
178:phosphorus
137:Magelungen
94:Basin size
64:Magelungen
400:18°7′18″E
116:Stockholm
80:Drevviken
348:"Forsån"
289:"Forsån"
255:See also
213:limnetic
201:such as
182:nitrogen
158:Larsboda
36:Location
298:11 July
108:Swedish
41:Country
312:Forsån
249:beaver
129:Forsen
120:Sweden
112:stream
104:Forsån
86:Length
60:Source
45:Sweden
22:Forsån
377:(PDF)
370:(PDF)
292:(PDF)
272:Notes
233:roach
229:trout
193:Fauna
75:Mouth
300:2010
243:and
227:and
219:and
187:lead
174:tons
126:and
176:of
429::
317:^
280:^
148:.
132:.
118:,
386:.
361:.
302:.
106:(
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