National Park Service

Northern Great Plains Network (NGPN)

Parks in this Network

NGPN Network Map
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Network Map

NGPN Partners

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Air Quality Monitoring

Haze over Theodore Roosevelt NP Haze over Theodore Roosevelt NP

Monitoring Documents

Current Ozone and Weather Conditions for Selected NGPN Park

Data Links

For more information contact:
Kara Paintner-Green


The quality of air in national parks can significantly affect park resources such as vegetation, soils, water, buildings, and monuments, as well as park visitors. Visibility, for example, has a strong impact on a visitor's experience and the perception of a national park. In some instances, air pollutants such as ozone, sulfur dioxide, or particulate matter can reach concentrations that injure plants or cause adverse health effects to people visiting or working in parks.

Monitoring Objectives

  1. Collect hourly, daily, or weekly measurements of ozone, wet/dry deposition (nitrogen compounds, mercury, and sulfur oxides), visibility, and particulates at Badlands NP, Theodore Roosevelt NP, and Wind Cave NP.
  2. Supplement NPS Air Resource Division and regional monitoring by collecting, hourly, daily, or weekly measurements of ozone amount, nitrogen deposition, and/or mercury deposition at other selected Northern Great Plains Network's parks.
  3. At the spatial scale of individual parks, sub-region (e.g. Black Hills), and entire Network, collaborate with Air Resource Division to report seasonal and annual descriptive statistics and to determine temporal variability and long-term trends of selected stressors that have the potential to cause large changes in vegetation composition and structure (ozone or nitrogen deposition) or to contaminate aquatic systems (mercury).

For air quality, most data will come from existing monitoring by NPS Air Resource Division, states, and from interpolations/model-based inference from the regional network of stations. Pohlman and Maniero (2005) summarized current monitoring efforts in the region, and provide initial recommendations for addition monitoring.

To learn more about air quality in the NGPN area, visit the Air Resource's NGPN web page. Use the Highlights area to view/download PDF reports.

Theodore Roosevelt NP has a web camera where you see current visibility at the park or explore the archives to see past conditions (the images on this page are from the web camera).

Parks Monitored

Vital Signs Monitored

Wet and Dry Deposition
Visibility and Particulate Matter
Air Contaminants

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Last Updated: March 08, 2017 Contact Webmaster