Urban Forest for Clean Air Demonstration Project a status report February 21, 2008
Project Goals Quantify net air quality benefits of our region’s urban forest Qualify the urban forest as an EPA- approved SIP measure
Ideal SIP Measure Scientific and model-based Evaluate entire package of effects Determine optimum level of canopy Comprehensive and massive tree planting plan
Proposed SIP Measure Ideal planting mix - favor low BVOC-emitting trees Current canopy coverage preserved and extended Replace failed trees in existing areas
Other Potential Benefits NO x and O 3 deposition Ambient temperature reduction Energy use avoidance
350 Random Plots
Data Collection Access site Locate center Draw map Measure trees
Species Tree Health % dead branches Crown dimensions Hardscape Precise tree location Assessment Results
Most Abundant Tree Species
Results 7 million urban trees 102 different species 12 % canopy coverage 36 % ready for planting Room for 14 million more trees
Next Steps Secure SIP commitments SIP adoption and implementation Develop modeling for other benefits Publish Regional canopy assessment
Questions