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CNN – Indonesia’s capital Jakarta is the world’s most polluted city, according to a new study, and the country’s president may have the cough to prove it.

The news came just days after the Swiss company IQAir released data showing that Jakarta’s air quality had deteriorated in recent weeks to become the worst in the world.

Air pollution has long plagued the Greater Jakarta area, with factories, coal-fired power plants and traffic congestion all contributing to the smog, according to experts.

The government officer informed that the first strategy involves pollution control through policies and regulations. Meanwhile, the second strategy involves reducing emissions that cause pollution by intensifying emission tests and encouraging the use of public transportation, among other things. The final strategy is appealing to the community to check the air quality before carrying out outdoor activities.

To check the air quality, people can use the Jakarta Kini (JAKI) application, the Meteorology, Climatology, and Geophysics Agency’s (BMKG’s) application, and the Air Pollutant Standard Index (ISPU) application.

But, let us dig deeper how the developed countries fix this condition normal.