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What is photochemical smog? How is …

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What is photochemical smog? How is it harmful

    • Posted by Aman Barnwal 7 years, 2 months ago

    CBSE > Class 09 > Science
    • 1 answers

    Yogita Ingle 7 years, 2 months ago

    PhotoChemical Smog: It is also known as Los Angeles Smog. This type of smog was first observed in Los Angeles in 1950.
    Actually it is a mixture of a no. of irritating chemical compounds like, NO2, O3, PAN( peroxyacylnitrates), aldehydes, ketones, hydrocarbons and CO.
    It is formed in summer as, when NO2 and hydrocarbons are mixed in air and that air is exposed to extreme sunlight.
    Harmful Effects:

    • All these compounds like PAN and ozone, produces irritatio to the eyes and also in respiratory system.
    • They also damage many materials such as , metals, stones, building materials etc.
    • Ozone is particularly destructive to rubber.
    • The smog is harmful to fabrics, crops and ornamental plants.

    2Thank You

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