Civil society groups are challenging a six-month authorisation granted aluminium giant BHP Billiton to emit potentially dangerous fumes from its Mozal smelter into the air without treating them first...Authorisation for the bypass, which Mozal says is required to rebuild and upgrade the...[Fume Treatment Centres]...is due to begin in late October 2010. Civil society groups...filed a court action Sep. 14 to reverse the government’s decision, which they say is based on insufficient information about the potential impact to human health and the environment around the smelter...Mozal says it has actively sought stakeholder engagement, but the community disagrees...Mozal says it has...an independent report on the safety of its proposal...[which] concludes that "the outcome of the predicted values showed a non-significant cumulative impact on health, environment and community." However, the report has not been released to the public... [also refers to SGS]