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Current Ozone and Weather Data in National Parks


Select a Monitoring Site from the Map or List Below

Acadia National Park - McFarland Hill Big Bend National Park - K-Bar Ranch Road Canyonlands National Park - Island in the Sky Carlsbad Caverns National Park Chiricahua National Monument - Entrance Station Craters of the Moon National Monument - Visitor Center Death Valley National Park - Park Village Denali National Park and Preserve - Headquarters Dinosaur National Monument - West Entrance Glacier National Park - West Glacier Horse Stables Grand Canyon National Park - The Abyss Grand Teton National Park - Science School Great Basin National Park - Maintenance Yard Great Smoky Mountains Nat'l Park - Cades Cove Great Smoky Mountains Nat'l Park - Clingmans Dome Great Smoky Mountains Nat'l Park - Cove Mountain Great Smoky Mountains Nat'l Park - Look Rock Joshua Tree National Park - Black Rock Joshua Tree National Park - Cottonwood Canyon Joshua Tree National Park - Pinto Wells Lassen Volcanic National Park - Manzanita Lake Fire Station Mammoth Cave NP - Houchin Meadows Meeker-Plant Science Mesa Verde National Park - Maintenance Yard Mojave National Preserve -  Kelso Mountain Petrified Forest National Park - South Entrance Pinnacles National Monument - East Entrance Rangely Golf Course Rocky Mountain National Park - Longs Peak Sequoia National Park - Ash Mountain Shenandoah NP - Big Meadows Theodore Roosevelt National Park - Visitor Center Voyageurs National Park - Sullivan Bay Wind Cave NP - Visitor Center Yellowstone National Park - Water Tower Yosemite National Park - Turtleback Dome Zion National Park - Dalton Wash
National Park Service Air Quality Ozone and Weather Monitoring Stations
Web Cameras EPA AirNow Get Ozone Data Ozone Health Advisory Ozone Standard Exceedances
Last Updated: Saturday April 29, 2017 4:44 PM Mountain Time 
Monitoring Site Data
Timelines
Ending Hour
(Local Time)
Last Posted 1-Hour Average Ozone Concentration
(parts per billion)
 Acadia National Park - McFarland Hill, ME Click icon to display multi-day data tiemline chart 6 PM, Apr-29 52
 Big Bend National Park - K-Bar Ranch Road, TX Click icon to display multi-day data tiemline chart 4 PM, Apr-29 47
 Canyonlands National Park - Island in the Sky, UT Click icon to display multi-day data tiemline chart 4 PM, Apr-29 50
 Carlsbad Caverns National Park, NM Click icon to display multi-day data tiemline chart 4 PM, Apr-29 28
 Chiricahua National Monument - Entrance Station, AZ Click icon to display multi-day data tiemline chart 3 PM, Apr-29 54
 Craters of the Moon National Monument - Visitor Center, ID Click icon to display multi-day data tiemline chart 4 AM, Apr-29 36
 Death Valley National Park - Park Village, CA Click icon to display multi-day data tiemline chart 3 PM, Apr-29 47
 Denali National Park and Preserve - Headquarters, AK Click icon to display multi-day data tiemline chart 1 AM, Apr-29 37
 Dinosaur National Monument - West Entrance, UT Click icon to display multi-day data tiemline chart 3 PM, Apr-29 51
 Glacier National Park - West Glacier Horse Stables, MT Click icon to display multi-day data tiemline chart 4 PM, Apr-29 42
 Grand Canyon National Park - The Abyss, AZ Click icon to display multi-day data tiemline chart 3 PM, Apr-29 48
 Grand Teton National Park - Science School, WY Click icon to display multi-day data tiemline chart 4 PM, Apr-29 45
 Great Basin National Park - Maintenance Yard, NV Click icon to display multi-day data tiemline chart 3 PM, Apr-29 44
 Great Smoky Mountains Nat'l Park - Cades Cove, TN Click icon to display multi-day data tiemline chart 6 AM, Apr-29 38
 Great Smoky Mountains Nat'l Park - Clingmans Dome, TN Click icon to display multi-day data tiemline chart 6 PM, Apr-29 37
 Great Smoky Mountains Nat'l Park - Cove Mountain, TN Click icon to display multi-day data tiemline chart 5 PM, Apr-29 47
 Great Smoky Mountains Nat'l Park - Look Rock, TN Click icon to display multi-day data tiemline chart 6 PM, Apr-29 48
 Joshua Tree National Park - Black Rock, CA Click icon to display multi-day data tiemline chart 1 PM, Apr-29 50
 Joshua Tree National Park - Cottonwood Canyon, CA Click icon to display multi-day data tiemline chart 3 PM, Apr-29 48
 Joshua Tree National Park - Pinto Wells, CA Click icon to display multi-day data tiemline chart 3 PM, Apr-29 50
 Lassen Volcanic National Park - Manzanita Lake Fire Station, CA Click icon to display multi-day data tiemline chart 2 AM, Apr-29 47
 Mammoth Cave NP - Houchin Meadows, KY Click icon to display multi-day data tiemline chart 5 PM, Apr-29 39
 Meeker-Plant Science, CO Click icon to display multi-day data tiemline chart 4 PM, Apr-29 51
 Mesa Verde National Park - Maintenance Yard, CO Click icon to display multi-day data tiemline chart 4 PM, Apr-29 51
 Mojave National Preserve - Kelso Mountain, CA Click icon to display multi-day data tiemline chart 3 PM, Apr-29 45
 Petrified Forest National Park - South Entrance, AZ Click icon to display multi-day data tiemline chart 3 AM, Apr-29 50
 Pinnacles National Monument - East Entrance, CA Click icon to display multi-day data tiemline chart 3 PM, Apr-29 56
 Rangely Golf Course, CO Click icon to display multi-day data tiemline chart 4 PM, Apr-29 51
 Rocky Mountain National Park - Longs Peak, CO Click icon to display multi-day data tiemline chart 4 PM, Apr-29 56
 Sequoia National Park - Ash Mountain, CA Click icon to display multi-day data tiemline chart 3 PM, Apr-29 57
 Shenandoah NP - Big Meadows, VA Click icon to display multi-day data tiemline chart 6 PM, Apr-29 45
 Theodore Roosevelt National Park - Visitor Center, ND Click icon to display multi-day data tiemline chart 3 AM, Apr-29 37
 Voyageurs National Park - Sullivan Bay, MN Click icon to display multi-day data tiemline chart 5 PM, Apr-29 52
 Wind Cave NP - Visitor Center, SD Click icon to display multi-day data tiemline chart 5 AM, Apr-29 51
 Yellowstone National Park - Water Tower, WY Click icon to display multi-day data tiemline chart 4 PM, Apr-29 49
 Yosemite National Park - Turtleback Dome, CA Click icon to display multi-day data tiemline chart 3 PM, Apr-29 51
 Zion National Park - Dalton Wash, UT Click icon to display multi-day data tiemline chart 4 PM, Apr-29 42
updated on 04/29/2017 4:44 PM  I   http://nature.nps.gov/air/data/current/index.cfm   I  Email: Webmaster