👉 Butts fumes refer to the unpleasant, often acrid odors produced by decomposing organic matter, particularly from human waste. These fumes are primarily caused by anaerobic bacteria breaking down feces and other organic debris in environments with limited oxygen, such as landfills or sewage systems. The result is a noxious mix of sulfurous gases like hydrogen sulfide, ammonia, and mercaptans, which can have a strong, rotten egg smell. These odors are not only highly unpleasant but can also be harmful to human health, causing respiratory issues and other discomforts. In some cases, butts fumes can persist for days or even weeks, making them a significant environmental and public health concern.