African smoke over the Amazon

The Brazilian rainforest is one of the world's few continental regions with clean air. However, this is only true during the wet season, when the concentration of particulate matter is very low. During the dry season, it's ...

Faster, cleaner, less expensive method of dry cleaning

The most commonly used chemical in the dry cleaning industry is a solvent called perchloroethylene, or PERC. The Environmental Protection Agency has classified the chemical as a likely carcinogen, and the U.S. Occupational ...

What is 'green' dry cleaning? A toxics expert explains

The winter holidays are a busy time for many businesses, including retail stores, grocers, liquor stores – and dry cleaners. People pull out special-occasion clothes made of silk, satin or other fabrics that don't launder ...

Asbestos, dry cleaning agent among 10 chemicals under review

Under a congressional mandate, the U.S. Environmental Protection Agency is reviewing 10 chemicals to determine if they pose an unreasonable risk to human health or the environment and should be subject to additional regulation. ...

Unexpected behavior of well-known catalysts

Industrial palladium-copper catalysts change their structures before they get to work, already during the activation process. As a result, the reaction is catalysed by a catalyst that is different from the one originally ...

NJ: 2 officials hid contaminant in city's water

(AP)—Two top officials at a New Jersey municipal water authority have been indicted on charges they hid elevated levels of a contaminant in the drinking water supply.

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