Question

What are (i) photochemical smog and (ii) ground level ozone

Answer 1

Answer:

i) The reaction of nitrogen oxides with Ultra Violet rays of sun causes Smog, called Photochemical Smog. This happens in the city with high pollution and population. It generally occurs in the morning.

ii) The reaction of nitrogen oxides, hydrocarbons like primary pollutants with sunlight helps in the formation of secondary pollutant like Ground level Ozone.

This has hazardous health effect on human's health where it causes irritation in lung, nose , throat, coughing, breathing trouble etc.

Answer 2

Photochemical smog:

• The petrochemical smog (haze) is fully with "ozone and nitrogen oxides". This creates big holes in the ozone layers.
• The haze in the atmosphere accompanied by high levels of ozone and nitrogen oxides, caused by the action of sunlight on pollutants.

Ground level ozone:

• Ground level ozone is most irritating gas in the earth atmosphere.
• Ozone is the "secondary pollutant" which forms from "primary pollutants" such as "Volatile Organic Compounds" (Hydrocarbons).
• It is found mostly in the automobile emissions.

To know more:

The formation of photochemical smog does not involve

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What is ground level ozone

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