A comparison of mass, lead, sulfate, and nitrate concentrations in a field study using dichotomous, size-selective, and standard hi-vol samplers

Journal Article · Mon Mar 01 00:00:00 EST 1982 · J. Air Pollut. Control Assoc.; (United States)

DOI:https://doi.org/10.1080/00022470.1982.10465401· OSTI ID:5181187

Witz, S; Smith, M; Shu, M; Moore, A B

Air was sampled in El Monte, CA, about 600 feet south of the San Bernardino Freeway (147,000 vehicles/day). Dichotomous/Conventional Hi-Vol; Size-Selective Inlet (SSI)/Conventional Hi-Vol; and Dichotomous/SSI samplers were used to determine the mass of the air, and the lead, sulfate, and nitrate concentrations. The dichotomous sampler recorded a lower mass than did the SSI. Lead concentrations of the dichotomous and SSI were equivalent and averaged 92% of the lead as determined by the standard hi-vol. The dichotomous nitrate was substantially lower than SSI nitrate, which, in turn, was lower than the standard hi-vol. Sulfates for the SSI and standard hi-vol were comparable, but the dichotomous sampler recorded considerably lower values for sulfate. (JMT)

• Research Organization: South Coast Air Quality Management District, El Monte, CA
• OSTI ID: 5181187
• Journal Information: J. Air Pollut. Control Assoc.; (United States), Vol. 32:3
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORS
COMPARATIVE EVALUATIONS
LEAD
ECOLOGICAL CONCENTRATION
NITRATES
SULFATES
AIR POLLUTION
AIR QUALITY
AUTOMOBILES
CALIFORNIA
EXHAUST GASES
FIELD TESTS
X-RAY SPECTROSCOPY
ELEMENTS
ENVIRONMENTAL QUALITY
FEDERAL REGION IX
FLUIDS
GASEOUS WASTES
GASES
MEASURING INSTRUMENTS
METALS
MONITORS
NITROGEN COMPOUNDS
NORTH AMERICA
OXYGEN COMPOUNDS
POLLUTION
SPECTROSCOPY
SULFUR COMPOUNDS
TESTING
USA
VEHICLES
WASTES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)