South Africa is home to many of the world’s worst emission sites for toxic nitrogen dioxide and sulfur dioxide and most of those are operated by the nation’s state power utility, according to Greenpeace. Coal-fired power plants operated by Eskom account for five of the world’s biggest single source nitrogen-dioxide emission sites and two of the worst sulfur-dioxide sites, the environmental campaign organization said in a study, Major Air Polluters in Africa, released on Thursday. Sasol, a South African petrochemicals company, operated another of the world’s top 10 nitrogen dioxide sites, Greenpeace said. Read More Engineering News | Home