Which one of the following statements regarding photochemical smog is ...
The oxidised hydrocarbons and ozone in presence of humidity cause photochemical smog.
Hydrocarbons + O2, NO2, NO, O, O3 → Peroxides, formaldehyde, peroxyacetylnitrate (PAN), acrolein etc.
It is oxidising in nature and causes irritation to eyes, lungs, nose, asthamatic attack and damage plants.
This question is part of UPSC exam. View all Class 11 courses
Which one of the following statements regarding photochemical smog is ...
Effects Of Photochemical Smog
Health Effects
One of the main pollutants in smog that causes health effects is tropospheric ozone. At low concentrations, ozone is an irritant, hurting the eyes, nose, and throat. At higher concentrations it can worsen respiratory conditions such as asthma, bronchitis, coughing, and chest pain. It also causes people to be more susceptible to respiratory infection, and is thought to decrease immune function.
Although ozone is responsible for many of the health effects of smog, NOx and PAN have many dangerous effects as well. NOx are thought to exacerbate respiratory illness (especially asthma), as well as decrease immune function. VOC (of which PAN's are a member) are known to be carcinogens, and Carbon Monoxide (which is often in smog) causes a decrease in oxygen delivered to the body. With all of these pollutants, the most "at risk" populations are children, the elderly, people with respiratory problems, and those that exercise outdoors.
Which one of the following statements regarding photochemical smog is ...
Photochemical smog is cause eye inflammation and throat infection and irritation in human being. and it is effect plant damage.
To make sure you are not studying endlessly, EduRev has designed Class 11 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 11.