The accumulation of sulfur in sediments of salty waterways can harm the environment. Researchers studied how different factors affect sulfur buildup in sediments from a non-salty wetland. They found that at low salt levels, the sediments could reduce all the sulfate present. But at higher salt levels, the process was limited by the amount of carbon in the sediments. Higher temperatures made the sulfate reduction faster. At first, the main sulfur forms were elemental sulfur and another unknown type, likely from organic matter. Over time, more reactive sulfur forms dominated, especially at high salt levels. The formation of less reactive sulfur minerals was not significant during the study.