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Cumberland Piedmont Network (CUPN)

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Ozone & Foliar Injury Monitoring

Ozone injury on common milkweed. Image downloaded from Ozone injury on common milkweed. Image downloaded from

Ozone & Foliar Injury Resource Brief

Ozone & Foliar Injury Monitoring Prot ocol

Ozone & Foliar Injury Monitoring Reports

NPS ARD Ozone Effects on Vegetation

For more information contact:
Bobby Carson (Mammoth Cave NP)
Johnathan Jernigan (CUPN)


Exposure to ozone above the National Ambient Air Quality Standard may affect human health, causing acute respiratory problems, aggravation of asthma, temporary decreases in lung capacity in some adults, inflammation of lung tissue, and impairment of the body's immune system.

Ozone also affects vegetation in national parks. Research shows that some plants are sensitive to ozone, and injury to plants occurs well below the National Ambient Air Quality Standard. Ozone causes considerable damage to vegetation throughout the world, including agricultural crops and native plants in natural ecosystems.

Preliminary Monitoring Objectives

  1. Monitor ozone concentration in two parks per year using a Portable Ozone Monitoring Station.
  2. In late summer, conduct ozone injury surveys in at least those two parks.
  3. Use nearby, off-site state-operated ozone monitors to compute ozone exposure indices for the areas surrounding the remaining CUPN parks. This data provides information about the severity of the ozone exposure in those areas.

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Management Applications

Portable Ozone Monitoring Station Portable Ozone Monitoring Station

Ozone concentration and ozone-caused plant injury data are used to determine whether select species of park vegetation are being injured by elevated ozone concentrations. This information is used for New Source Review, in the review of Prevention of Significant Deterioration of Air Quality permit applications.

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Last Updated: December 30, 2016 Contact Webmaster