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PEROXYACETYL NITRATES [1 record]

Record 1 2011-08-02

English

Subject field(s)
  • Chemical Elements and Compounds
  • Pollutants
  • Climate Change
  • Air Pollution
DEF

A greenhouse gas produced by the action of sunlight on hydrocarbons and nitrogen oxides in the air which is an ingredient of smog.

CONT

Peroxyacyl nitrates (PANs) are an important component of summer smog. They can cause eye irritation and plant damage. Moreover, PANs are a temporary reservoir for reactive intermediates involved in summer smog formation. It is essential to know the kinetics and mechanisms of their formation and destruction for inclusion in models of atmospheric chemistry. PANs are formed in the atmosphere as secondary products following the OH-initiated photo-oxidation of aldehydes and the generation of peroxyacyl radicals. The Peroxyacyl radicals may react either with NO2 to generate PANs or with NO to form radical products and CO2 ...

OBS

PAN is one of the oxidation products of NOx. Its residence time is sufficiently long that if global combustion activities increase significantly, it could increase in concentration in the atmosphere.

Key term(s)
  • peroxyacetyl nitrates
  • peroxyacyl nitrates
  • peroxyacetylnitrates

French

Domaine(s)
  • Éléments et composés chimiques
  • Agents de pollution
  • Changements climatiques
  • Pollution de l'air
DEF

Composé chimique susceptible d'être formé à la suite de réactions photochimiques dans lesquelles interviennent l'ozone, les oxydes d'azote et les hydrocarbures imbrûlés et dont la présence provoque l'apparition de brouillards photochimiques oxydants appelés smog, caractéristiques des problèmes de pollution atmosphérique et que l'on considère aussi comme un gaz à effet de serre potentiel.

CONT

La toxicité du nitrate de peroxyacétyle et de l'acétaldéhyde.

Key term(s)
  • nitrates de peroxyacétyle
  • nitrates de peroxyacyle
  • nitrates de peroxyacétyl
  • nitrates de peracétyle

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Agentes contaminantes
  • Cambio climático
  • Contaminación del aire
Key term(s)
  • nitratos de peroxiacetilo
  • nitratos de peroxiacilo
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