The Thai government has proposed fining polluters who exceed the government recommended pollution emissions. What a farce. The polluters will continue to pollute and pass the cost of the fines on to the consumers. The government will collect the fines and Thai air quality will continue to get worse, eventually resulting in a general increase in respiratory diseases and cancers.
The only way to decrease pollution is to set limits for emissions and stop emissions producers from production if they can't meet the government set standards. It is an expensive fix as new technologies and equipment must be developed that add to the cost of the products. However, it does work. I've seen it work in Southern California in the '70-'80s when their smog problem was similar to Bangkok's