Raw data presented for this site
are collected in “near-real time” and are intended only as an indicator of
recent air quality. Data must be interpreted with caution. The data on this
page and in the "Data Details" summary have not been validated by human review
and may contain errors. These data are provided for public awareness and
Federal Land Manager review only. They should not be used in any medical or
scientific study. Contact your regional air program manager to obtain
quality-assured quarterly data summaries or access to fully-validated raw data.