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secondary air pollutants — antriniai atmosferos teršalai statusas T sritis ekologija ir aplinkotyra apibrėžtis Dėl žmogaus veiklos į atmosferą išmestos taršiosios medžiagos: O₃, SO₂, NO₂, NH₃, HNO₃, SO₄²⁻, NH₄⁺, NO₃⁻, sunkieji metalai (varis, kadmis, švinas, cinkas,… … Ekologijos terminų aiškinamasis žodynas
secondary air — In some exhaust emission control systems, e.g., thermal reactor or two bed converter, secondary (outside) air is added to the exhaust to ensure sufficient supply of oxygen to promote oxidation of HC and CO, thus converting these pollutants into… … Dictionary of automotive terms
Air pollution — from World War II production Smog over … Wikipedia
Smog — is a kind of air pollution; the word smog is a portmanteau of smoke and fog. Classic smog results from large amounts of coal burning in an area caused by a mixture of smoke and sulfur dioxide. Modern smog does not usually come from coal but from… … Wikipedia
Peroxyacyl nitrates — Peroxyacyl nitrates, or PANs, are powerful respiratory and eye irritants present in photochemical smog. They are formed from a peroxyacyl radical and nitrogen dioxide, for example peroxyacetyl nitrate, CH3COOONO2:Hydrocarbons + O2 + NO2 + light → … Wikipedia
SAFE AIR — (Simulation of Air pollution From Emissions Above Inhomogeneous Regions) is an advanced atmospheric pollution dispersion model for calculating concentrations of atmospheric pollutants emitted both continuously or intermittently from point, line,… … Wikipedia
Photodissociation — Photodissociation, photolysis, or photodecomposition is a chemical reaction in which a chemical compound is broken down by photons. Photodissociation is not limited to visible light, but to have enough energy to break up a molecule, the photon is … Wikipedia
Megacity — This article is about the general category of conurbation. For other uses, see Mega City (disambiguation). Tokyo is the world s largest megacity … Wikipedia
nitric oxide — Chem. a colorless, slightly water soluble gas, NO, formed by the action of dilute nitric acid on copper, and by the direct combination of atmospheric oxygen and nitrogen at the high temperatures of an electric arc: an intermediate in the… … Universalium
environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations … Universalium
Water pollution — Raw sewage and industrial waste flows across international borders New River passes from Mexicali to Calexico, California. Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater). Water p … Wikipedia
