Photochemical smog, Science

Photochemical Smog:

Photochemical  smog, a  secondary Pollutant,  results when  the two pollutants, nitrogen  oxide and hydrocarbons  found  in  automobile exhausts, react with  one another  in the presence of  sunlight to produce  nitrogen  dioxide (N02), ozone (03) and a  compound called  PAN (Peroxylacetyl nitrate), which  then appear as a yellowish  brown  haze.  Breathing ozone affects  the respiratory and nervous  system. It causes respiratory  distress, affects eye membranes and stimulates tears. It also causes headache. Ozone also damages rubber  articles, textiles and discolours paintings. It has been  recently found  that smog is harmful  to timber.  PAN is especially damaging to plants.  Plants exposed  to PAN exhibit  leaf mottling  and  

Posted Date: 9/28/2012 5:48:42 AM | Location : United States







Related Discussions:- Photochemical smog, Assignment Help, Ask Question on Photochemical smog, Get Answer, Expert's Help, Photochemical smog Discussions

Write discussion on Photochemical smog
Your posts are moderated
Related Questions
You can present this assignment using the format of your choice, e.g. Poster, webpage, booklet, animation, short film etc. Select a chronic condition (Type 2 Diabetes) and develop

Explain the Histotoxic Hypoxia It is a type of hypoxia in which due to the action of a toxic agent oxidative enzymes are poisoned hence the tissue cells cannot utilize oxygen s

how has Modern sequencing helped in our understanding of the human genome?

Explain the Pyramids - Feature of Medulla Pyramids are the bulges of ventral surfaces, where most of the lateral corticospinal tracts originating from motor area of cerebrum de

formulation of RDA

State about the Lateritic soils Lateritic soils formed at high levels have a pale red colour, have high gravel content and are poor in all fertility constituents.  Those forme

Explain the Mechanics of Respiration The process of respiration can be well understood by studying the mechanism of respiration. This can be explained through a respiratory cy

Making a 'gusher' with compressed air Secure a large narrow-necked bottle like as is used for soda water. Place a single-hole stopper in the bottle. By the stopper put a 10- cm

Enumerate in brief about the Earthworms There are several species of earthworms, having slender cylindrical bodies with varying diameters. These organisms ingest the dead organ

Explain Yawing Reflex Actions - Respiratory Pocess Yawning:  It is a deep inspiration drawn through open mouth. Low oxygen tension in the blood may be the cause of yawning.