Air pollution in Jakarta is also affected by climate change.  In 2015, when there was a draught for over five days and no rain at all, the Standard Index Air Pollution has reached 200, which is over the limit and categorized unhealthy.  In 2016, the quality of air in Jakarta is getting better since the dry season was rather wet.  However, the worse quality of air was still happened during rush hours in the morning and evening when a lot of vehicles trapped in traffic jam. Off peak hours, the air quality index in Jakarta was around 60 which was included in the moderate level.  

To reduce air pollution, the Government of Jakarta has been conduct a mandatory gas emission test for all public transports.  Starting this year, the Government plan to conduct test gas emissions for all vehicles without any exception as a condition of vehicle registration renewal.  The Government will apply Euro 4 and 5 by replacing the fuel with a high octane and unleaded.  All service vehicles operating within the Government of Jakarta will be replaced with gas-fueled.   In addition, the Government of Jakarta will increase the green open space up to 30 percent of the total city width.