A passive sampler for atmospheric ozone

Journal Article · Sat Feb 01 04:00:00 EST 1992 · Journal of the Air and Waste Management Association; (United States)

DOI:https://doi.org/10.1080/10473289.1992.10466980· OSTI ID:5388789

Grosjean, D; Hisham, M W.M. ^[1]

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1. DGA, Inc., Ventura, CA (United States)

A simple, cost-effective passive sampler has been developed for the determination of atmospheric ozone. This passive sampler is based on a colorant which fades upon reaction with ozone, whose concentration can be determined by reflectance measurement of the color change. Direct, on-site measurements are possible, and no chemical analyses are needed. Sampler design and validation studies have been carried out and included quantitative determination of color change vs exposure time (1-8 days), color change vs. ozone concentration (30-350 ppb), and response to changes in sampler configuration that modify the passive sampling rate. With indigo carmine as the colorant, the detection limits are 30 ppb. day and 120 ppb. day using a plastic grid and Teflon filter, respectively, as diffusion barriers. Interferences from nitrogen dioxide, formaldehyde and peroxyacetyl nitrate are 15, 4 and 16%, respectively, thus resulting in a negligible bias when measuring ozone in ambient air.

• OSTI ID: 5388789
• Journal Information: Journal of the Air and Waste Management Association; (United States), Journal Name: Journal of the Air and Waste Management Association; (United States) Vol. 42:2; ISSN JAWAE; ISSN 1047-3289
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION MONITORING
AIR SAMPLERS
ALDEHYDES
CHALCOGENIDES
DESIGN
EQUIPMENT
ESTERS
FORMALDEHYDE
MONITORING
NITRATES
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PEROXYACETYL NITRATE
SAMPLERS
TECHNOLOGY ASSESSMENT
TESTING
VALIDATION