Denim pollution

People around the world share one fashion love “blue jeans.” Denim may be stylish, but also has many unexpected downsides pollutants.Two techniques commonly used that became the hallmarks of blue jeans are the well known indigo color and the worn out look that make the statement in a pair of jeans. Unfortunately, the chemicals involved in their processes contribute to pollution. Today the indigo dye is produced from coal or oil (a process that can release toxic byproducts like cyanide and formaldehyde) while stonewash uses volcanic rocks or pumice stones which releases pumice dust that endanger worker’s health and produces gritty sediment waste.

http://cnn.com/video/?/video/world/2010/04/26/chang.blue.jeans.cnn