Which nutrient is most commonly associated with water quality issues in Maryland?

The nutrient most commonly associated with water quality issues in Maryland is phosphorus. Excessive phosphorus in water bodies can lead to eutrophication, which is the overgrowth of algae leading to oxygen depletion and harming aquatic life. This issue is particularly significant in Maryland due to its agricultural activities and how phosphorus from fertilizers can run off into streams and rivers, eventually impacting the Chesapeake Bay and other water sources.

Nitrogen is also a nutrient that can affect water quality and contribute to similar problems like eutrophication. However, in the context of Maryland, phosphorus has gained more attention due to specific regulations targeting its use and the significant problems linked to its runoff. Understanding the prevalence and effects of phosphorus in the Chesapeake Bay watershed emphasizes the importance of managing this nutrient to protect water quality.

While potassium and calcium are important nutrients as well, they do not typically pose the same level of water quality concern in Maryland as phosphorus and nitrogen do.