1. OZONE ONE KIND OF AIR POLLUTION

2. A photochemical reaction  Sunlight + a chemical = different chemicals  Not all kinds of light  Only shorter wavelengths (visible, UV)  Examples:  Photosynthesis in plants (movie)movie  Fading paint on your house, car  Fading colors of clothes in store windows  Making ‘good’ zone  Sunburn  DNA changes  Photochemical smog: car exhaust & sunlight= ozone  (picture)picture  Sunlight + a chemical = different chemicals  Not all kinds of light  Only shorter wavelengths (visible, UV)  Examples:  Photosynthesis in plants (movie)movie  Fading paint on your house, car  Fading colors of clothes in store windows  Making ‘good’ zone  Sunburn  DNA changes  Photochemical smog: car exhaust & sunlight= ozone  (picture)picture

3. GOOD OZONE  Very high - 10 to 30 miles (25 km)  Called the Stratosphere  15 ppb ozone  Absorbs short UV light (<350 nm)  Protects people & all living things !  Very high - 10 to 30 miles (25 km)  Called the Stratosphere  15 ppb ozone  Absorbs short UV light (<350 nm)  Protects people & all living things !

4. BAD OZONE  0-7 miles high  Called the Troposphere  Some is natural, Some comes from pollution  Is bad for people’s health  0-7 miles high  Called the Troposphere  Some is natural, Some comes from pollution  Is bad for people’s health

5. OZONE IS A GAS (picture)picture OZONE IS A GAS (picture)picture

6. BAD OZONE  Comes from car exhaust  VOC - Volitile Organic Compounds  NO x - NO 3 Nitrates and NO 2 Nitrites  Sunlight causes chemical change  Irritates your lungs and eyes.  Comes from car exhaust  VOC - Volitile Organic Compounds  NO x - NO 3 Nitrates and NO 2 Nitrites  Sunlight causes chemical change  Irritates your lungs and eyes.

7. Ozone affects people

8. Ozone affects plants

9. Will ozone damage our beans?