Polluters
In Phuket there are no significant industrial plants, most of the island being covered by rubber tree plantations and forest. Cooking is mostly done with gas, so traffic is the biggest air pollution source. Many cars run on natural or liquified petroleum gas since it is cheaper, but there are lots of scooters using petrol. In cities, air may be severely polluted not only by transportation but also by the burning of fossil fuels (oil and coal) in generating stations, factories, office buildings, and homes and by the incineration of garbage. The massive combustion produces tons of ash, soot, and other particulates responsible for the gray smog. Especially Phuket which is the scenery town of Thailand which has more than 4 million tourists in each years. So the air pollution in Phuket will be in high level due to the tourists visited in each year.