Accession Number:

ADA010646

Title:

Accumulation of Atmospheric Pollutants Near Fairbanks, Alaska, During Winter.

Descriptive Note:

Special rept.,

Corporate Author:

COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H

Personal Author(s):

• Jenkins,T. F.
• Murrmann,R. P.
• Brockett,B. E.

Report Date:

1975-04-01

Pagination or Media Count:

30.0

Abstract:

Concentrations of hydrocarbons, carbon monoxide, carbon dioxide, condensation nuclei and nitric oxide were monitored near Fairbanks, Alaska, at a selected location not under the direct influence of a local pollution source. The measurements were made continuously over a period of weeks during January and February 1973, the period when atmospheric pollution would be expected to be most severe. Accumulation and dissipation of the pollutants was found to be related to atmospheric inversion conditions, wind speed and daily traffic patterns. Maximum hourly average concentrations of hydrocarbons, carbon monoxide, carbon dioxide and condensation nuclei were 9.7 ppm, 22.1 pp, 482 ppm and more than 10,000 Ncu cm respectively. Comparative background levels are reported to be 1.4 ppm, 0.1 ppm, 320 ppm and 100-400 Ncu cm. Vehicle emissions appeared to be the primary source of the various pollutants.

Descriptors:

• *MEASUREMENT
• *AIR POLLUTION
• SOURCES
• TRAFFIC
• ALASKA
• WINTER
• HYDROCARBONS
• WIND VELOCITY
• CARBON MONOXIDE
• AIR QUALITY
• NITRIC ACID
• CARBON DIOXIDE
• TEMPERATURE INVERSION
• CONDENSATION NUCLEI

Subject Categories:

• Air Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE