Asthma
In 1999, the Comalco/Rio Tinto-controlled Boyne Smelters Ltd of Australia
settled a ten-year lawsuit filed by 18 pot room workers. Boyne paid over
A$1 million to settle claims that they contracted asthma working at the
smelter. (Stephen Johnston, “Aluminium,” Mining Annual Review, March 2000)
Flouride emissions
Flourides are produced during the reduction of alumina, during “anode
effects.” Small quantities of these emissions have big impacts.
The contributions of these emissions are discussed in the Global Warming
chapter of this report. The principal kinds of fluorides emitted,
tetrafluoromethane and hexafluoroethane, also have significant local health
impacts.
In India, the NALCO aluminum smelter in Angul, Orissa, is widely believed
to be the source of severe fluoride contamination among people and animals
living nearby. This plant discharges more than 220 tons of fluoride into
the groundwater and surface water, according to 1992 tests run by the
Orissa State Prevention and Control of Pollution Board. (“TTPS releases SPM
into Nandira,” Nandira, March 1993)
Many villagers have reported brittle bones, tooth and gum diseases, lumps
of dead skin, and a host of other symptoms of fluorosis. Cattle, more prone
to fluoride contamination, commonly suffer from bone deformities, the loss
of teeth, a sharp drop in birth rates and a sharp rise in death rates. In
one village, one kilometer from the Angul plant, the number of cattle
declined from 3,000 to less than 100 head over a ten year period. (“The
Spectre of Industrial Pollution in Angul-Talcher Area,” Nandira newsletter
of District Industrial Pollution Control and Citizens’ Action Project,
Dhenkanal, Angul, late 1993, p. 16)
Although state regulators have demanded that NALCO provide piped water to
local villages, company officials have denied that they are responsible for
the fluorosis outbreak, and the resultant decimation of the local cattle
herds. The smelter’s discharge canal, which flows into the Nandira river,
is used by people for bathing, washing clothes, and drinking. (Nandira,
1993)
In the same Indian state, the Indalco smelter caused widespread fluorosis
among local villagers. In 1990, scientists from G.M. College of Sambalpur
examined villagers and found that an astounding 67 percent of men and 64
percent of women suffered from fluorosis. People aged 12 to 19 were most
severely impacted. The researchers also found that the water and vegetation
in the areas were “highly contaminated by fluorides.” (U.N. Samal and B.N.
Naik, “Dental fluorisis in human beings around an aluminium factory of
Orissa,” Journal of Environmental Biology, V. 11, No. 4, Oct. 1990)
Despite this track record, in 2000 and 2001 Nalco is expanding its capacity
from 230,000 to 345,000 tons. (Stephen Johnston, “Aluminium,” Mining Annual
Review, March 2000)
In British Columbia, Alcan’s Kitimat smelter is Canada’s largest emitter of
hydrogen fluoride. In 1997, the plant released over 485 tons of hydrogen
fluoride, accounting for 9% of the province’s on-site releases. (Burkhard
Mausberg, Canadian Environmental Defense Fund in Toronto)
The 514,000 ton per year aluminum smelter in Tursunzade, Tajikistan, has
been “the source of significant adverse health effects, both to the
residents of Tursunzade in Tajikistan and the bordering communities in
Uzbekistan. Livestock were losing their teeth and dying, and the teeth of
local children have been found to be discolored,” according to the Slavic
Research Center. The plant emitted, at peak operating capacity, 193 tons of
fluorides annually. (Bakhtior Islamov, “Aral Sea Catastrophe: Case for
National, Regional and International Cooperation,” Slavic Research Center,
1998)
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