Locally generated air pollution combined with a polluted stream
of air from the Connecticut/Long Island/New York City region and the
Mid-west blows into the valley each summer. Under the influence of
hot weather and sunlight this mass of polluted air is converted to
ozone and other airborne toxic chemicals. As a result the Pioneer
Valley has some of the worst smog levels in New England.
- Ground Level Ozone (Smog)
The Environmental Protection Agency's (EPA) New England Regional
Office maintains information on smog - alerts, maps, background
The EPA site for national ground-level ozone (smog) monitoring
- downloadable publications.
- Clean Water Action
Grassroots organization working on local air pollution issues.