Baltimore's Urban Streams

The video discusses the environmental challenges facing Chesapeake Bay due to nitrate pollution from urban sources. It highlights research led by hydrologist Claire Welty, focusing on how urban streams contribute to this issue. The study examines natural nitrate processing in streams and the impact of urbanization on these processes. The role of the hyporheic zone in nitrate removal is emphasized, along with the importance of understanding urban water systems for improving water quality and sustainability.

What is one of the main environmental issues affecting the Chesapeake Bay?

• Deforestation

• Oil spills

• Nitrate pollution

• Overfishing

What is the primary focus of Claire Welty's research?

• Developing new fertilizers for urban gardens

• Studying fish populations in the Chesapeake Bay

• Mapping urban streams to understand nitrate pathways

• Analyzing the effects of climate change on urban areas

How do urban streams differ from natural streams in processing nitrates?

• Urban streams have higher oxygen levels

• Urban streams have more vegetation

• Urban streams have slower water flow

• Urban streams often lack hyporheic exchange

What is the hyporheic zone's role in nitrate removal?

• It prevents erosion

• It speeds up water flow

• It facilitates chemical reactions to remove nitrates

• It increases water temperature

Why is understanding runoff and water travel times crucial for scientists?

• To reduce urban development

• To improve water quality

• To enhance recreational activities

• To increase fish populations