The sinister effects of inhaling crystalline silica—which, like asbestos, slowly leads to lung disease and cancer—have been known for years. Only recently have tools that trap the deadly dust become widely available. Slide Show Photo: Tudor Van Hampton / ENR This year’s World of Concrete attracted many new options in dust control. DeWalt now offers cordless portability in dust control “There’s been a drumbeat,” says Matt Gillen, senior scientist at the Washington, D.C.-based National Institute for Occupational Safety and Health. Over the last decade, more suppliers have brought out controls designed to capture dust at the source: the business end
The 2016 Summer Olympics boating and swimming events have put an international spotlight on what has been a long-running problem in Rio de Janeiro—untreated sewage and trash are clogging up major bays and waterways.