Effects of air filtration on concentration and deposition of gaseous and particulate air pollutants in open-top field chambers. [Ceanothus crassifolius Torr. , Pinus coulteri D. Don, P. ponderosa Dougl. ex P. C. Lawson]

Journal Article · · Journal of Environmental Quality; (USA)

OSTI ID:6958998

Bytnerowicz, A; Olszyk, D M; Dawson, P J; Morrison, L ^[1]

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1. Univ. of California, Riverside (USA)

Concentrations of gaseous and particulate air pollutants, and deposition fluxes of NO{sup {minus}}{sub 3}, SO{sup {minus}2}{sub 4}, and NH{sup +}{sub 4} ions to branches of California lilac (Ceanothus crassifolius Torr.), Coulter pine (Pinus coulteri D. Don.), ponderosa pine (P. ponderosa Dougl. ex P. C. Lawson), nylon filters, and paper filters were measured in open-top field chambers with different filtration materials and in chamberless outside plots. Additionally, concentrations of O{sub 3}, NO{sub 2}, NO, SO{sub 2} and total S compounds also were determined in the chambers. Effects of different air filtrations were more evident for deposition fluxes to plant and surrogate surfaces. On the average, in the CHARCOAL chambers, deposition fluxes of NO{sup {minus}}{sub 3}, SO{sup 2{minus}}{sub 4}, and NH{sup +}{sub 4} to the surfaces were reduced to 21, 38, and 26% of the outside values, respectively. In the DUST 1 DUST 2 chambers, deposition fluxes of NO{sup {minus}}{sub 3}, SO{sup 2{minus}}{sub 4}, and NH{sup +}{sub 4} were reduced to about 50, 56, and 75% of the outside levels, respectively. Deposition fluxes of the studied ions to plants were much lower than to nylon and paper filters.

• OSTI ID: 6958998
• Journal Information: Journal of Environmental Quality; (USA), Vol. 18:3; ISSN 0047-2425
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
01 COAL, LIGNITE, AND PEAT
EXPOSURE CHAMBERS
EFFICIENCY
FILTERS
AIR POLLUTION
AMMONIUM COMPOUNDS
ANIONS
CATIONS
DEPOSITION
ENVIRONMENTAL TRANSPORT
FILTRATION
MEASURING METHODS
NITRATES
NITROGEN DIOXIDE
NITROGEN OXIDES
OZONE
PARTICULATES
POLLUTANTS
SHRUBS
SULFATES
SULFUR
SULFUR DIOXIDE
TREES
CHALCOGENIDES
CHARGED PARTICLES
ELEMENTS
IONS
MASS TRANSFER
NITROGEN COMPOUNDS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PLANTS
POLLUTION
SEPARATION PROCESSES
SULFUR COMPOUNDS
SULFUR OXIDES
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
010900 - Coal
Lignite
& Peat- Environmental Aspects