Evaluation of springtime nitrogen oxide and oxidant data from a suburban/rural northeast USA surface site. [PRECP]
Full characterization of the air chemistry (gases, particles and meteorology) was accomplished for a rural site in Bucks County, PA during April 1985, in connection with PRECP field experiments. Data from continuous monitoring of nitrogen oxides (NO/sub y/), nitric acid, ozone and SO/sub 2/ are used in this evaluation along with PAN analyses every 30 min, meteorological data from surface observations and a single theodolite radiosonde system, and selected aerosol compositions and gaseous aldehyde data. Limited precipitation composition data from a manual sequential sampler is available including common ions, dissolved SO/sub 2/ and H/sub 2/O/sub 2/. Correlation matrices, averaged diurnal trends, and pollution roses will be presented indicating strong relationships between ozone and the secondary nitrogen oxide species, HNO/sub 3/ and PAN. Periods of impact from the greater Philadelphia and New York source regions can be identified from NO/sub y/ and SO/sub 2/ data, but anticyclonic flow in aged air masses advected from the west resulted in the major importation of secondary nitrogen(V) and sulfur(VI) species (HNO/sub 3/, PAN and aerosol sulfate) to this site. 16 refs.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA); Los Alamos National Lab., NM (USA); Argonne National Lab., IL (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 7126615
- Report Number(s):
- BNL-41221; CONF-880912-3; ON: TI88009892
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
AIR POLLUTION
AROMATICS
ATMOSPHERIC CHEMISTRY
ATMOSPHERIC CIRCULATION
ATMOSPHERIC PRECIPITATIONS
AZINES
CHALCOGENIDES
CHEMISTRY
DIAZO COMPOUNDS
ECOLOGICAL CONCENTRATION
FEDERAL REGION III
FIELD TESTS
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
METEOROLOGY
NAPAP
NAPHTHOLS
NITRIC ACID
NITROGEN COMPOUNDS
NITROGEN OXIDES
NORTH AMERICA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PAN
PENNSYLVANIA
PHENOLS
POLLUTION
PYRIDINES
RAIN
SULFUR COMPOUNDS
SULFUR OXIDES
TESTING
TIME DEPENDENCE
USA