around
the world large cities have the same problem. That problem is air pollution.
Bangkok has very bad air. The air there is dirty and very unhealthy. Cars are one reason for
dirty air. Many Thais now own their own cars and drive in the city.
The factories in the area also cause air pollution. These factories put a lot of smoke into
the air. It is not easy to clean up the air in a large city. The government has to make new laws
and everyone has to help.