1. Heavy smoke from forest fires may result in the worst pollution for over ten years in the southern Thailand
2. The smoke threatens local people's health in seven provinces of the south
3. Dangerous levels of pollution are recoreded in the Thai city___
4.Early this month, a number of flights in Phuket were cancelled because of the smoke
5. In the past two months, thousands of forest fires in Indonesia leave bad effects on southeast asia
6. Pollution also increases rates of respiratory illnesses
