Determination of acidic gas and particle concentrations in open-top field chambers. Final report
Technical Report
·
OSTI ID:5638514
The report describes determinations of concentrations of gaseous and particulate air pollutants in open-top field chambers used for exposing of tree seedlings to acidic rain and ozone. During the study, air pollution concentrations were measured in the following types of chambers: charcoal-filtered (control); ambient air with ambient ozone concentrations; ambient air with double ambient ozone concentrations. Concentrations of gaseous nitric acid, gaseous nitrous acid, ammonia, sulfur dioxide and nitrate, ammonium and sulfate in fine and coarse particulate fractions were determined. Increased concentrations of nitric acid were detected in chambers due to the generation of ozone, however, these concentrations were lower than the ambient concentrations measured in outside plots. Elevated concentrations of nitrous acid were detected in the charcoal-filtered chambers.
- Research Organization:
- Forest Service, Riverside CA (United States). Pacific Southwest Forest and Range Experiment Station
- OSTI ID:
- 5638514
- Report Number(s):
- PB-94-109063/XAB; CNN: ARB-A132-174
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ACID RAIN
ADSORBENTS
AIR POLLUTION
AIR POLLUTION MONITORING
AMBIENT TEMPERATURE
AMMONIA
ATMOSPHERIC PRECIPITATIONS
CHALCOGENIDES
CHARCOAL
CHEMICAL REACTIONS
CONTROL
ENVIRONMENTAL EFFECTS
EXPOSURE CHAMBERS
GROWTH
HYDRIDES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MONITORING
NITRATES
NITRIC ACID
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROUS ACID
OPTIMAL CONTROL
OXIDES
OXYGEN COMPOUNDS
OZONE
PARTICLES
PARTICULATES
PLANT GROWTH
PLANTS
POLLUTANTS
POLLUTION
RAIN
SEEDLINGS
SULFATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TREES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ACID RAIN
ADSORBENTS
AIR POLLUTION
AIR POLLUTION MONITORING
AMBIENT TEMPERATURE
AMMONIA
ATMOSPHERIC PRECIPITATIONS
CHALCOGENIDES
CHARCOAL
CHEMICAL REACTIONS
CONTROL
ENVIRONMENTAL EFFECTS
EXPOSURE CHAMBERS
GROWTH
HYDRIDES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MONITORING
NITRATES
NITRIC ACID
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROUS ACID
OPTIMAL CONTROL
OXIDES
OXYGEN COMPOUNDS
OZONE
PARTICLES
PARTICULATES
PLANT GROWTH
PLANTS
POLLUTANTS
POLLUTION
RAIN
SEEDLINGS
SULFATES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TREES