9a Smog -Acid Rain.slides-4

download 9a Smog -Acid Rain.slides-4

of 2

description

A&O2 UCLA

Transcript of 9a Smog -Acid Rain.slides-4

  • 2/27/15

    1

    Acid Rain / London Smog Acid Rain

    Acid Rain

    3

    Acid rain can impact ecosystems in various ways: Waldsterben

    (dying forest) AcidicaBon of lakes

    dying sh

    Uptake of SO2, NO2, sulfuric and nitric acid into rain and fog acid rain/fog

    London Smog

    4 London, 1952

  • 2/27/15

    2

    London Smog

    H. de Voeux (1905): Smoke + Fog Smog CombinaBon of smoke from coal res and fog in England. Known for many years Physiological symptoms: chest constricBon, diculBes breathing, headache, nausea, vomiBng, ..

    5

    Many deaths due to smog

    Ingredients of London Smog

    RadiaBon inversion in winter. SomeBmes mixing height only 50 - 100 m

    Coal res from house heaBng and industry release SO2 (sulfur dioxide) and soot

    Fog droplets take up SO2 and sulfuric acid and become very acidic

    Acidic fog droplets + smoke parBcles are responsible for health eects

    6

    What is London or sulfurous smog? Acids and bases in the atmosphere Sulfur chemistry Nitrogen chemistry How is acid rain and fog formed? Impacts of acid rain and fog.

    7