UNDATED (WTVB) – A four year study has found that the St. Joseph River in southwest Michigan is one of three Michigan waterways that has a significant presence of organic waste compounds.
The Rouge and Clinton Rivers in southeastern Michigan along with the St. Joe have pollutants from car exhaust, smokestacks, herbicides and detergents according to the study conducted by the U.S. Geological Survey.
The Detroit Free Press reported on Sunday that scientists found some organic waste compounds were 10 times higher than water-quality standards.
The newspaper also reported that the study found high concentrations of hydrocarbons formed during incomplete burning of coal, oil, gas, wood and other organic substances.
