National Capital Region Network Resource Values and Stressors

Vignette 1

Vital Sign - Air and ClimatePriority Vital Signs for Air Quality and Climate


• Air quality impacts scenic vistas (HAFE)

Obscured Vista (HAFE)

Inspiring park vistas can be obscured by degraded air quality, Harpers Ferry. Photo: Greg Goodman (http://photography.universalexports.net)

Vignette 2

Vital Sign - Water Quality and HydrologyPriority vital signs for Water Quality and Hydrology


• Upstream and surrounding land uses impact water quality (ANTI)
• Protected headwaters promote pristine water resources (CATO)
• Dynamic river conditions influence canal environments (CHOH)
• Water quality is impacted by agriculture adjacent and within park (MONO)
• Restoring wetland habitat along a troubled river (NACE)
• Continuous forest habitat protects watershed (PRWI) Impervious surfaces surround park (ROCR)

Potomac River

Post-Hurricane Isabel flood stage of the Potomac River, September 2003. Photo: NPS

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