~Air Pollution~

-Introduction

-Pollutants
-Sulphur dioxide
-Nitrogen dioxide
-Carbon monoxide
-Ozone
-Particulates
-Lead

-API
-What's API?
-In Hong Kong
-Equipment
-API figures

-Photochemical Smog
-What is it?
-Problems
-Effects

-Acid Rain
-How it is formed?
-Effects

-Global warming
-Greenhouse effect
-Effects
-What can you do?

-Measures
-Part 1
-Part 2
-Part 3
-What can you do../1
-What can you do../2

Air pollution occurs when impurities called pollutants are released into the air.