Which of the following is an environmental concern linked to leaking fuel storage tanks?

The identification of groundwater contamination as an environmental concern linked to leaking fuel storage tanks is accurate. When underground storage tanks (USTs) leak, hazardous substances such as petroleum hydrocarbons can seep into the surrounding soil and eventually reach the groundwater aquifers. This contamination poses significant risks to public health and the environment, as groundwater is a major source of drinking water for many communities. The presence of harmful chemicals in the groundwater can lead to a variety of health issues for individuals consuming contaminated water, as well as detrimental effects on local ecosystems.

While the other options suggest positive outcomes—such as increased soil fertility, reduction of air pollution, and improved ecosystem health—these outcomes do not align with the reality of the impacts resulting from leaking fuel storage tanks. Instead, the primary concern remains the safeguarding of water quality and the health risks posed by such environmental contamination.