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9.2

9.2 . Smog Heat Island Effect Noise Lights. Smog. Dirty clouds of pollution. Industrial Smog. Power plants that burn coal and oil Sulfur dioxide (SO2). Photochemical Smog. Burning gasoline Nitrogen oxides ( Nox ), ozone, PAN React with sun. Ozone. Ground level

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9.2

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  1. 9.2 Smog Heat Island Effect Noise Lights

  2. Smog • Dirty clouds of pollution

  3. Industrial Smog • Power plants that burn coal and oil • Sulfur dioxide (SO2)

  4. Photochemical Smog • Burning gasoline • Nitrogen oxides (Nox), ozone, PAN • React with sun

  5. Ozone • Ground level • Irritate and damage lungs • Difficulty breathing • Make asthma symptoms worse

  6. PAN • Peroxyacetyl nitrates • Respiratory and eye irritants • Cause cancer • Kill plants

  7. Ozone Levels • Monitored everyday • Warnings on high days http://www.epa.state.il.us/air/aqi/

  8. Atmospheric Ozone • Good • Protects earth • Radiation

  9. Catalytic Converters • Eliminates car emissions • Carbon monoxide (deadly) • Nitrogen (make smog and acid rain; unhealthy) • Hydrocarbons (generate ozone and smog)

  10. Urban Heat Island Effect • City is hotter than rural neighbors • More dark surfaces to absorb / maintain heat • More machines, air conditioners, heaters

  11. Solutions to Heat Island • More plants and trees • More light surfaces

  12. Noise Pollution • Distracting, irritating, or damaging sounds • Airplanes, trains • Construction • Loud music

  13. Decibel (dB) • Measures sound • 120 dB can cause deafness

  14. Light Pollution • City lights on all night • Harms nocturnal animals • Can’t see stars

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