• historic photo of men with gear at the Alaska-British Columbia border in the snow

    Klondike Gold Rush

    National Historical Park Alaska

Air Quality

Scientific equipment in an open area among trees

The SEAN uses mutli-pronged approach to sample the atmosphere including wet deposition sampling, collection of lichens and biomonitoring plots.

NPS photo

Southeast Alaska is known for its fresh air. The Southeast Alaska Inventory and Monitoring Network (SEAN) monitors airborne contaminants throughout national parks in Southeast Alaska including; Klondike Gold Rush National Historical Park (NHP), Sitka NHP, and Glacier Bay National Park and Preserve.

The Airborne Contaminants monitoring program is designed to monitor contaminants every 10 years using a variety of methods including measuring amounts of nitrogen, sulfur and metals such as mercury. This is being done through the collection of lichens, which absorb elements in the atmosphere, and rain water collection. Additionally, the NPS is cooperating with the Tongass National Forest to continue data collection on 120 permanent biomonitoring plots throughout the region.

For more information go the SEAN Airborne Contaminants web page.

or

Download the one page PDF Resource Brief on this study.

Did You Know?

Street car drives down a dirt road

The George and Edna Rapuzzi collection donated to the Park included such items as a photo of the interior of the Mascot Saloon, one of Martin Itjen’s unique street cars, and the Jeff Smith Parlor. More...