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Titolo:
NOy removal from the Cumberland Power Plant Plume
Autore:
Imhoff, RE; Luria, M; Valente, RJ; Tanner, RL;
Indirizzi:
Tennessee Valley Author, Atmospher Sci & Environm Assessments Dept, MuscleShoals, AL 35662 USA Tennessee Valley Author Muscle Shoals AL USA 35662 leShoals, AL 35662 USA Hebrew Univ Jerusalem, Div Environm Sci, Jerusalem, Israel Hebrew Univ Jerusalem Jerusalem Israel Environm Sci, Jerusalem, Israel
Titolo Testata:
ATMOSPHERIC ENVIRONMENT
fascicolo: 1, volume: 35, anno: 2001,
pagine: 179 - 183
SICI:
1352-2310(2001)35:1<179:NRFTCP>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
UNITED-STATES; RURAL SITE; OZONE;
Keywords:
power plant plume; oxides of nitrogen (NOy); nitric acid (HNO3); sulfur dioxide (SO2); differential loss rate;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Physical, Chemical & Earth Sciences
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Imhoff, RE Tennessee Valley Author, Atmospher Sci & Environm Assessments Dept, POB 1010, Muscle Shoals, AL 35662 USA Tennessee Valley Author POB 1010Muscle Shoals AL USA 35662 USA
Citazione:
R.E. Imhoff et al., "NOy removal from the Cumberland Power Plant Plume", ATMOS ENVIR, 35(1), 2001, pp. 179-183

Abstract

Airborne measurements were performed in the plume of the Cumberland Power Plant during August 1998 using a highly sensitive SO2 instrument. The measurements confirmed previous suggestions that NOy species are removed from the plume at a faster rate than SO2. The differential removal rate (the difference between loss rate of NOy and that of SO2) was estimated to be 0.06 h(-1). This value implies that the NOy, loss rate is in the range of 0.09-0.14 h(-1). The application of a mathematical argument, based on the convolution integral, enabled improved synchronization of the data from the SO2 and NOy instruments. Examination of the synchronized data revealed that the concentration ratio of SO2 and NOy varies across the plume. Near the source itis higher at the wings of the plume, while in the core of the plume it is similar to the ratio at the release point. Two possible explanations of theobservations are discussed: conversion to non-measurable NOy species, and in-plume loss of NOy (as HNO3) via dry deposition. Published by Elsevier Science Ltd.

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Documento generato il 18/02/20 alle ore 05:32:54