Nrss - 18453 - Nr-Ard-34 Opt Task 12 Voc Survey

PO# 140P2123C0036 Yellowstone is a designated Class I Airshed under the Clean Air Act, and prior NPS-led studies have documented significant wintertime impacts from oversnow vehicle emissions, including elevated VOCs, NOx, CO, and PM2.5 associated with snowmobile and snowcoach traffic. While winter use policy changes have substantially reduced CO and PM2.5 over the past two decades, comparable data characterizing summertime traffic impacts, when visitation and vehicle numbers are far higher, are

Estimated value

$10M - $19M

Contract type

To Be Determined

• NAICS541620
• PSC541620