Evaluation of springtime nitrogen oxide and oxidant data from a suburban/rural northeast USA surface site

Conference · Thu Sep 01 00:00:00 EDT 1988 · Preprints of Papers Presented at National Meeting, Division of Water, Air and Waste Chemistry, American Chemical Society; (USA)

OSTI ID:7070120

Tanner, R L; Roberts, J M ^[1]; Gaffney, J S ^[2]; Sisterson, D L ^[3]

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1. Brookhaven National Lab., Upton, NY (USA)
2. Los Alamos National Lab., NM (USA)
3. Argonne National Lab., IL (USA)

Measurements of NO{sub y} (defined as NO + NO{sub 2} + HNO{sub 3} + peroxyacetyl nitrate + other gaseous organic nitrates), its oxidation products (e.g., nitric acid and peroxyacyl nitrates (PANs)), and related oxidant concentrations have been conducted for a significant period of time in only a few locations. For semi-rural locations in the Northeast USA, continuous or hourly data are relatively scarce, such that the climatology and pollution roses as related to sources are not widely available, particularly in transition (spring and fall seasons). Measurements of PAN and its seasonal and diurnal relation to NO{sub y} have been reported for urban sites, regional locations and, in a few cases, remote sites. These measurements, recently reviewed by Roberts (1988), are particularly critical in evaluations of the nitrogen oxide cycle in the global troposphere. Nitric acid concentrations have been widely measured and compared in some cases with NO{sub y} and total nitrate (HNO{sub 3} + particulate NO{sub 3}{sup {minus}} + PAN) data for the purpose of evaluating seasonal and air mass trajectory dependencies. There are only a few studies in which PAN and HNO{sub 3} data over significant time periods have been reported and related to seasonally varying NO{sub y} and oxidant levels at a sampling location. In the absence of direct, ambient measurements of NO{sub 3} and N{sub 2}O{sub 5}, these studies also have great significance in determining the role of gas-phase vs. aqueous-phase processes in generating secondary acidic species for incorporation into hydrometeors.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 7070120
• Report Number(s): CONF-8909232--
• Journal Information: Preprints of Papers Presented at National Meeting, Division of Water, Air and Waste Chemistry, American Chemical Society; (USA), Journal Name: Preprints of Papers Presented at National Meeting, Division of Water, Air and Waste Chemistry, American Chemical Society; (USA) Vol. 28:2; ISSN 0099-7293; ISSN ACWCA
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION
AIR POLLUTION MONITORING
AQUEOUS SOLUTIONS
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
DATA
DISPERSIONS
ESTERS
EXPERIMENTAL DATA
FEDERAL REGION I
FEDERAL REGION II
FLUIDS
GASES
INFORMATION
MIXTURES
NITRATES
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NORTH AMERICA
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PEROXYACETYL NITRATE
PH VALUE
PHOTOCHEMICAL OXIDANTS
POLLUTION
SEASONAL VARIATIONS
SOLUTIONS
USA
VARIATIONS