In-use NO emission measurements of commercial aircraft at London's Heathrow Airport in 1997.

[Report] [ES&T]

The first ever in-use emission measurements of snowmobiles conducted in Yellowstone National Park in 1998 and 1999.

[1998, 0.1 mb] [Report] [ES&T]
[1999, 0.1 mb] [Report] [ES&T]

In-use NO emission measurements of BNSF line-haul locomotives in the yard under controlled conditions and in the field.

[FHA Report]

The first ever in-use emission measurements of snowcoaches and 4-stroke snowmobiles in Yellowstone National Park in 2005 and 2006.

[2005 PEMS, 18 mb] [Report]
[2005 RSD, 0.1 mb] [ES&T]
[2006 PEMS, 8.1 mb] [Report]