6.3 Photochemical smog
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6 Terms
Bad ozone
A toxic gas and an oxidizing agent. It damages crops and forests, irritates eyes, can cause breathing difficulties in humans and may increase susceptibility to infection. It is highly reactive and can attack fabrics and rubber materials. Is found in the troposhpere.
How is bad ozone formed
Nitrogen dioxide can also absorb sunlight and break up to release oxygen atoms that combine with oxygen in the air to form ozone.
Sources of bad ozone
Sources are:
Transport
Cooking
Dust from construction sites and roads
Heating
Power generation
Secondary Pollutants
are produced in the air by the interaction of two or more primary pollutants
Ex:
bad ozone
Somg components
primary + secondary pollutants
bad ozone is the main pollutant
Temperature inversions
when cold air is trapped under warm air. Cold air does not move or sinks in from surrounding hills.
Flashcards (39)