Ozone Monitoring Issues & Opportunities

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Presentation transcript:

Ozone Monitoring Issues & Opportunities Ozone Transport Commission MANE-VU Committee Meeting September 24, 2014 Washington, DC Will Ollison 1220 L Street, NW • Washington, DC 20005-4070 • www.api.org

Recommendations States should ask that EPA allow adjustment of O3 design values (DVs) to account for actual population dose (as allowed for PM design values) to eliminate over-regulation of high altitude (> 1000 feet) locations Similarly, states should lower O3 monitor inlets within allowed 2-15 meter heights above grade to adjust DVs to more accurately reflect typical 1-2 meter above grade population breathing zone exposures outdoors States should also ask that EPA allow similar DV adjustment (ca. – 15%) of mandated 10 meter CASTNET inlet height O3 DVs to 2 meter values to reflect typical population breathing zone exposures outdoors 1220 L Street, NW • Washington, DC 20005-4070 • www.api.org

High Elevation O3 Monitors ( > 1000 feet) ● 14,100 ft DV cut 28 ppb ● 9000-12,000 ft DV cut 20-24 ppb ● 6300-9000 ft DV cut 15-19 ppb ● 3900-6300 ft DV cut 10-14 ppb ● 1700-3900 ft DV cut 5-9 ppb ● 1000-1700 ft DV cut 2-4 ppb 1220 L Street, NW • Washington, DC 20005-4070 • www.api.org

O3 Monitor Inlet Heights Above Grade 1220 L Street, NW • Washington, DC 20005-4070 • www.api.org