Runoff carrying oil, tire particles, metals, and lawn chemicals is best described as which type of runoff?

• A. Urban runoff
• B. Agricultural runoff
• C. Stormwater runoff
• D. Designated water uses

Answer: (A)

Pollution tied to city environments comes from everyday urban activities like cars on streets, parking lots, and lawn care. Oil and grease from vehicles, tire wear particles, metals from wear and corrosion, and lawn chemicals picked up from residential landscapes all get carried by rain or irrigation into the drainage system. That pattern points to urban runoff, a type of water flow that originates in urban areas. Stormwater runoff describes the movement of water itself, but the listed pollutants are characteristic of urban sources rather than farms or other settings, which would bring different pollutants. So the best fit is urban runoff.