High temperatures and extremely low oxygen levels are likely to produce which gas?

High temperatures combined with extremely low oxygen levels are conditions that favor the production of hydrogen sulfide. This gas is typically generated through anaerobic decomposition processes, where organic matter breaks down in the absence of oxygen. During these anaerobic conditions, sulfate-reducing bacteria thrive and convert sulfates into hydrogen sulfide as a metabolic byproduct.

In environments where temperatures are elevated, the activity of these bacteria can increase, leading to higher volumes of hydrogen sulfide gas being produced. This gas has a distinct rotten egg odor and can be hazardous in concentrations above certain levels. Understanding this relationship is essential in wastewater treatment facilities, as managing odors and the impact of hydrogen sulfide is a critical aspect of maintaining safety and environmental compliance.