Air quality data from the national air surveillance networks.
Edition: 1967 ed.
Series: United States. National Air Pollution Control Administration. Publication -- no.APTD 69-22; National Air Pollution Control Administration publication -- no.APTD 69-22.
Publisher: National Air Pollution Control Administration
Published: 1970
Place of publication: Raleigh, N.C
Language: eng
Number of pages: 184
Subjects: Air -- Pollution -- Standards -- United States.
Notes: 1966 ed. issued by U.S. Air Quality and Emission Data Program as APTD 68-9.

Rev. ed. for 1967 issued 1971 by U.S. Division of Atmospheric Surveillance also as APTD 69-22.