Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Major roadway (Interstate 5 and State Route 99) and mobile monitoring transect concentrations of traffic-related pollutants: (A) black carbon mass and (B) total particle (>10 nm) number. This figure includes all the data collected on all transects north and south of the airport.
