Dog waste that isn’t cleaned up isn’t just a hazard for the bottom of your shoes—it is also a cause of pollution in creeks, rivers and lakes across the country. Dog waste contains nitrogen and phosphorus, which can deplete oxygen that fish and other water-based life need to survive, as well as encourage the growth of harmful algae. It is also considered a significant source of pathogens like fecal coliform, a disease-causing bacteria.
