Analysis of the St. Louis RAMS (regional air monitoring system) ambient particulate data. Volume I: Final report

Technical Report · Fri Feb 01 04:00:00 EST 1980

OSTI ID:6870922

Trijonis, J; Eldon, J; Gins, J; Berglund, G

In this report, a variety of data analysis methods are used to study the 1976 particulate data from the Regional Air Monitoring System (RAMS) in St. Louis. The aerosol data, collected at ten sites, include hi-vol measurements of total suspended particulate mass (TSP), as well as dichotomous sampler measurements of inhalable particulate mass (IP). IP is subdivided into fine particles (less than 2.4 micrometers in diameter) and coarse particles (between 2.4 and 20 micrometers in diameter). This study also includes dichotomous sampler data for eight trace elements (S, Si, Al, Ca, Pb, V, Ti, and Fe) and data for 11 meteorological parameters. The analyses characterize the spatial pattern of particulate matter in-and-near St. Louis; background aerosol concentrations and particulate transport; temporal patterns of particulate concentrations, the dependence of aerosol concentrations on meteorology; and the relationship between hi-vol data and dichotomous data. Averaged over the RAMS network, IP mass consists of 50% fine particles and 50% coarse particles. Sulfates, secondary aerosols occurring on a large (air basin and synoptic) scale, constitute 53% of fine mass and 29% of IP. Crustal material, mostly consisting of manmade fugitive dust, comprises 83% of coarse mass and 47% of IP. That sulfate is the major source of fine mass and that crustal material dominates coarse mass are the two major themes apparent in the spatial, temporal, and meteorological patterns of the dichotomous data.

• Research Organization: Technology Service Corp., Santa Monica, CA (USA)
• OSTI ID: 6870922
• Report Number(s): PB-80-203359
• Country of Publication: United States
• Language: English

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500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOLS
AIR POLLUTION
ALKALINE EARTH METALS
ALUMINIUM
CALCIUM
CHALCOGENIDES
CHEMICAL ANALYSIS
COLLOIDS
DATA ANALYSIS
DISPERSIONS
ELEMENTS
IRON
LEAD
METALS
MIDWEST REGION
MISSOURI
MONITORING
MULTI-ELEMENT ANALYSIS
NONMETALS
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
PARTICLES
POLLUTION
SAMPLING
SOLS
SULFATES
SULFUR
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TITANIUM
TRACE AMOUNTS
TRANSITION ELEMENTS
USA
VANADIUM