USDA Agricultural Research Service scientists have found that aluminum chloride — a common ingredient in deodorants for people — helps minimize the nose-prickling vapors that tend to concentrate in and around dairy facilities. The compound can significantly slash troubling ammonia emissions.

The compound doesn’t generate smelly, sulfuric gases when applied to liquid waste. And, aluminum chloride   reduces phosphorus runoff and atmospheric ammonia levels in animal facilities in a cost-effective manner.