The latest report from Nafas, an air quality monitoring application, shows that Bandung Raya, not the Jabodetabek region, had the worst air pollution in Indonesia throughout November 2023.
Air pollution levels in Bandung Raya were calculated based on particulate matter (PM) 2.5 pollution levels. The city recorded an average PM2.5 concentration of 49 micrograms per cubic meter.
According to the World Health Organization (WHO), good air quality has a PM2.5 concentration of between 0 and 5 micrograms per cubic meter. This means that the pollution level in Bandung Raya is 9.8 times worse than the WHO standard.
Based on the United States Environmental Protection Agency (US EPA) air quality index, PM2.5 air pollution levels in the range of 0-12 micrograms per cubic meter indicate good air quality; 12.1-35.4 micrograms per cubic meter indicates moderate air quality; and 35.5-55.4 micrograms per cubic meter indicates unhealthy air quality for sensitive groups.
Further, unhealthy air quality is in the range of 55.5-150.4 micrograms per cubic meter, very unhealthy air quality is in the range of 150.5-250.4 micrograms per cubic meter, and hazardous or toxic air quality is above 250.4 micrograms per cubic meter.
According to this index, the air quality in Bandung Raya is considered unhealthy for sensitive groups. Several areas in Jabodetabek also fell into this category in November 2023.
Nafas Co-founder & CEO Nathan Roestandy stated that rain fell across many areas before the new year, with varying intensities ranging from moderate to heavy. He noted that Nafas sensors observed a trend of increasing pollution after a brief period of cleaner air following the rain.
“This means there are still major pollution sources that need to be addressed, and we cannot simply rely on rain to improve air quality,” said Nathan, as quoted from the report.
Here are the 10 cities/regions with the highest PM 2.5 air pollution levels in Indonesia in November 2023:
1. Bandung Raya: 49 micrograms per cubic meter (unhealthy for sensitive groups)
2. South Tangerang: 45 micrograms per cubic meter (unhealthy for sensitive groups)
3. Tangerang: 45 micrograms per cubic meter (unhealthy for sensitive groups)
4. Bekasi: 42 micrograms per cubic meter (unhealthy for sensitive groups)
5. Depok: 41 micrograms per cubic meter (unhealthy for sensitive groups)
6. Bogor: 41 micrograms per cubic meter (unhealthy for sensitive groups)
7. Surabaya: 40 micrograms per cubic meter (unhealthy for sensitive groups)
8. DKI Jakarta: 40 micrograms per cubic meter (unhealthy for sensitive groups)
9. Semarang: 36 micrograms per cubic meter (unhealthy for sensitive groups)
10. Malang: 34 micrograms per cubic meter (moderate)