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A new study has found that per- and polyfluoroalkyl substances (PFAS), harmful chemicals commonly used in food packaging to repel water and grease, are present in nearly half of the tested samples, including pizza boxes, popcorn bags and fast-food...
Clean freshwater is one of our most valuable natural resources, especially in the parched West. What if there were a “blue bin” that could be used to recycle industrial wastewater laden with pollutants into clean potable water?
In the 1920s, refrigeration and air conditioning systems used compounds such as ammonia, chloromethane, propane and sulfur dioxide as refrigerants. However, the compounds were toxic and flammable, which made them dangerous.