Manganese can keep toxic hydrogen sulfide zones in check in aquatic systems

Manganese, in trace amounts, is essential to human health. Now a research team from the University of Delaware, Scripps Institution of Oceanography, the University of Hawaii and Oregon Health and Science University has discovered that a dissolved form of the mineral also is important in waterways such as the Black Sea and Chesapeake Bay, where it can keep toxic hydrogen sulfide zones in check.