Organic dyes can be stubborn pollutants, as they are often chemically stable and difficult to break down. They can resist traditional wastewater treatments. Once present in natural waters ...

One business is turning that waste into natural dyes used in garments sold by Anthropologie. Others are making fragrances and incense sticks. More from World Wide Waste Worshippers in India buy ...

Wednesday afternoon, a tracer dye test is expected to be conducted by the Kalamazoo Department of Public Services to help with the Kalamazoo Water Reclamation Plant's Stormwater Pollution ...