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
Waht is the body temp of pisces

Explain the Duodenum The first part of the small intestine is called the diodenum. It is about 10 inches in length. At the mid-point of the duodenum, there is a common opening

To show that liquids exert pressure Connect two 15 cm lengths of glass tubing or two transparent plastic soda straws with a short length of rubber tubing and attach them to an


Explain the Structure of Tongue The tongue is a muscular organ. It is covered with a mucous membrane. The tongue is attached by its base to the hyoid bone and by a fold of its

1. How much variation is there in the routine analysis of fibre content of soya cotton cakes? The data are presented by the lab that did the test and the technician within the lab

Question 1 Classify NSAIDS and discuss their mechanism of action. Discuss the general properties of NSAIDS Question 2 Describe briefly Pharmacodynamics and Pharmacokinetics?

What is clay minerals The fraction of secondary minerals is often mixed with primary minerals and oxides of iron, aluminium and silicon and has a size of less than       0.002

HAZARDS IN THE LABORATORY : Laboratories in the biology department of schools, colleges and universities and other higher level organisation such as hospitals, veterinary esta

how a student nurse can apply the knowledge of mental health and mental hygiene in her personal and professional life