photochemical smog ozone

Photochemical smog occurs due to the action of sunlight on air pollutants, generating photochemical reactions. The principal constituents of the photochemical smog are gaseous hydrocarbons (leading to ozone formation) and oxides of nitrog..

3 and NO gets reduced. As a result the level of O 3 and NO 2 in atmosphere increases. The presence of excessive O 3 , together with aldehydes, ketones, PAN etc. constitute photochemical smog. From the above it can be conclude..

Smog is mixture of smoke and fog containing particulates. Two types of smog exist, classical or original smog and the more recent photochemical smog..

Smog is mixture of smoke and fog containing particulates. Two types of smog exist, classical or original smog and the more recent photochemical smog..

Smog causes respiratory problems like asthma attacks, bronchitis, heart related disorders. Being noxious, it causes irritation to eyes, throat and nose. It reduces visibility and affects road as well as air traffic. It damages plants; Ozone is very toxic to leafy vege..

="left">Chlorofluoro carbons (CFCs) Refngerators, air conditioners, foam shaving cream, spray cans and cleaning solvents. Destroy ozone layer which then permits harmful UV rays to enter the atmosphere. Nitrogen Oxides Automobile exhausts, burning of fossil fuels, forest fires,electric gen..

Above the troposphere is the stratosphere. This zone is rich in ozone. Hence, it is also called ozonosphere. In ozonosphere, oxygen in the presence of sunlight converts to ozone by photochemical dissolution. The ozonosphere completely absorbs short wave solar radiatio..

Gas Relative %age Volume Nitrogen (N 2 ) 78.09 Oxygen (O 2 ) 20.93 Argon (A) 00.93 Carbon di oxide (CO 2 ) 0.032 Miscellaneous 0.02 Total 100.000 Oxygen is present in the first zone, 10 to 12 km from the surface of the ea..

Vapours of any acid introduced into the atmosphere causes acid mist. 'Sulphuric acid mist' is produced when SO 3 present in the atmosphere, comes in contact with moisture. Sulfur trioxide (SO 3 ) is produced by complete combustion and forms sulfuric acid by the mechanism below..

. Smog that extends its width to 3 km in the sky can travel half the way across the world within a week, depending upon the wind conditions. The Asian Brown Haze, which has startled environmental scientists the world over, is a major focus of concern at the Earth Summit 2002, at..