Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
NATURAL AND ANTHROPOGENIC C-2 TO C-6 HYDROCARBONS IN THE CENTRAL-EASTERN VENEZUELAN ATMOSPHERE DURING THE RAINY-SEASON
Autore:
DONOSO L; ROMERO R; RONDON A; FERNANDEZ E; OYOLA P; SANHUEZA E;
Indirizzi:
INST VENEZOLANO INVEST CIENT,ATMOSPHER CHEM LAB,APARTADO 21827 CARACAS 1020A VENEZUELA INST VENEZOLANO INVEST CIENT,ATMOSPHER CHEM LAB CARACAS 1020A VENEZUELA UNIV STOCKHOLM,AIR POLLUT LAB,ITM STOCKHOLM SWEDEN
Titolo Testata:
Journal of atmospheric chemistry
fascicolo: 2, volume: 25, anno: 1996,
pagine: 201 - 214
SICI:
0167-7764(1996)25:2<201:NAACTC>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARBON-MONOXIDE; BOUNDARY-LAYER; ISOPRENE; CHEMISTRY; SAVANNAH; C2-C6; AIR;
Keywords:
NONMETHANE HYDROCARBONS; ISOPRENE; TROPICAL ATMOSPHERE; OIL FIELD EMISSIONS; POTENTIAL OZONE FORMATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
39
Recensione:
Indirizzi per estratti:
Citazione:
L. Donoso et al., "NATURAL AND ANTHROPOGENIC C-2 TO C-6 HYDROCARBONS IN THE CENTRAL-EASTERN VENEZUELAN ATMOSPHERE DURING THE RAINY-SEASON", Journal of atmospheric chemistry, 25(2), 1996, pp. 201-214

Abstract

The levels of low molecular weight hydrocarbons were measured at pristine sites and rural locations affected by hydrocarbon emissions from oil and gas producing fields in Venezuela. At the clean sites, lower concentrations of C-2 to C-6 alkanes were observed, whereas, in comparison with remotes sites, very much higher levels were measured at the polluted sites. Alkenes present relatively high concentrations, with isoprene being the most abundant, all over the study region. The main sources of alkenes are likely to be natural, mainly from vegetation. Thelevels of alkanes recorded at the clean sites and the alkene levels found everywhere in the region are in agreement with the values reported for other clean sites in the tropics. The increase of ozone production capacity due to the anthropogenic emissions of alkanes from oil andgas fields was estimated. Due to the presence in the atmosphere of important amounts of naturally emitted isoprene, ethene and propene, which makes a substantial contribution to the reactivity of the hydrocarbon mixture, a small increase (<5%) was estimated to occur in the capacity of the ozone production at a regional scale during the rainy season.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 20:02:39