Non disposable materials for instance plastic, polythene and chemicals cause to water and soil pollution while air and sound polluted by the carbonic gases and the sounds emitted by vehicles and industries resrespectively.

being a pearl of Indian ocean, were we able to get any aggressive actions in-order to avoid such things?
At least, did we take any initiatives to stop/reduce usage of polythene while most other countries have banned it already. And also I must mention that there are good ongoing projects too in Sri-lanka with intentions of protecting nature and reducing pollution.