- Inco Superstack
The Inco Superstack in Sudbury,
Ontario, with a height of 380 m (1,247 ft), is the tallest chimneyin Canadaand the Western hemisphere, and the second tallest freestanding chimney in the world after the GRES-2 Power Stationin Kazakhstan. It is also the second tallest freestanding structure of any type in Canada, ranking behind the CN Towerbut ahead of First Canadian Place.
It was constructed by Inco Limited in 1972 at an estimated cost of 25 million dollars; from the date of its completion until the GRES-2 chimney was constructed in 1987, it was the world's tallest smokestack. Between the years 1972-75 it was the tallest freestanding structure in Canada.
The Superstack sits atop the largest
nickel smeltingoperation in the world at Inco's Copper Cliff processing facility in the city of Greater Sudbury.
The structure was built to disperse sulphur gases and other byproducts of the smelting process away from the city itself. As a result, these gases can be detected in the atmosphere around Greater Sudbury in a 150 mile radius of the Inco plant. Prior to the construction of the Superstack, the waste gases caused severe ecological damage in the area around Sudbury. This included an almost total loss of native vegetation in some areas, giving the city a reputation as a barren, rocky wasteland.
Construction of the Superstack allowed the city to launch an environmental reclamation plan which has included rehabilitation of water bodies such as
Lake Ramsey, and an ambitious regreening plan which has seen over three million new trees planted in the city. In 1992, the city was given an award by the United Nationsin honour of its environmental rehabilitation programs. Despite these efforts, much of the environmental damage to the Sudbury area is permanent, particularly to exposed rocky outcrops, which have been dyed jet black by acid rainin a layer which penetrates up to three inches into the once pink-gray granite.
While the Superstack lowered the ground-level pollution in the city, it also dispersed the gases over a much larger area. This led to a slow rise in
acidityof lakes in the area, to the point where by the late 1980s up to 7,000 lakes were severely damaged due to acid rain. Starting in the early 1990s, a major construction effort started to dramatically clean the waste gases before pumping them up the Superstack, removing around 90% of the sulphur dioxide. The upgrades were completed in 1994, and emissions from then on are much reduced [ [http://www.inco-sudbury-airquality.com/SO2Emissions.htm Process Overview ] ] . Further reductions in emissions are planned.
List of chimneys
List of tallest freestanding structures in the world
* [http://www.mndm.gov.on.ca/mndm/mines/ims/hist_album/pictures/stack_e.jpgPicture from Ontario MNDM site]
* [http://www.emporis.com/en/wm/bu/?id=212441 Emporis listing]
* [http://www.skyscraperpage.com/cities/?buildingID=1511 Skyscraperpage]
* [http://www.inco-sudbury-airquality.com/ Inco Air Quality Site]
Wikimedia Foundation. 2010.
Look at other dictionaries:
Inco Superstack — Vue de l Inco Superstack. Localisation Situation Copper Cliff Ontario … Wikipédia en Français
Inco Superstack — Der Inco Superstack Der Inco Superstack aus größerer Entfernung … Deutsch Wikipedia
Superstack — may refer to:*The Inco Superstack, a superstructure in Canada *The SuperStack series of network switches manufactured by 3Com … Wikipedia
Inco — Vale Inco Unternehmensform Tochtergesellschaft von Vale Gründung 1902 Unternehmenssitz Toronto Unternehmensleitung … Deutsch Wikipedia
Inco Limited — Vale Inco Unternehmensform Tochtergesellschaft von Vale Gründung 1902 Unternehmenssitz Toronto Unternehmensleitung … Deutsch Wikipedia
Vale Inco — Infobox Company company name = Vale Inco company company type = Wholly owned subsidiary company slogan = Building the world s leading nickel company. foundation = 1902 location = Toronto, Ontario, Canada key people = Murilo Ferreira, President… … Wikipedia
Vale Inco — Rechtsform Tochtergesellschaft von Vale Gründung 1902 Sitz … Deutsch Wikipedia
Vale Inco — Тип Дочернее общество Деятельность … Википедия
Vale Inco Limited — Vale Inco Limited канадская горнорудная компания, дочерняя компания бразильской горнорудной компании Vale. Штаб квартира в Торонто, Канада. Содержание 1 История 2 Собственники и руководство 3 Деятельность … Википедия
Greater Sudbury — City City of Greater Sudbury Ville de Grand Sudbury From top left: Downtown Sudbury Skyline, Big Ni … Wikipedia