Jakarta’s Air Quality Placed Second Most Polluted City in the World

Jakarta’s Air Quality Declines to World’s Second-Worst on Friday, IQAir Data Shows

Jakarta, Indonesia’s sprawling capital and economic hub, recorded the world’s second-worst air quality on Friday morning, according to real-time data from IQAir, the Swiss-based air quality monitoring organization. The measurement places the city behind only Delhi, India, in terms of particulate pollution, as fine particulate matter (PM2.5) levels surged to hazardous levels, posing significant health risks for residents.

Air quality in Jakarta reached an average PM2.5 concentration of 151 micrograms per cubic meter (µg/m³) on Friday, June 5, 2026, far exceeding the World Health Organization’s (WHO) safe exposure limit of 15 µg/m³ over 24 hours. The reading was classified as "unhealthy" by IQAir’s global air quality index, with the organization’s data indicating that prolonged exposure to such levels can exacerbate respiratory diseases, cardiovascular conditions, and other serious health complications.

The spike in pollution comes amid persistent challenges in managing urban emissions, including vehicle exhaust, industrial activity, and seasonal biomass burning in surrounding regions. While exact causes for the latest surge have not been officially confirmed, historical patterns suggest contributions from:

• Increased vehicular traffic, as Jakarta’s congested roads accommodate over 12 million registered vehicles in a metropolitan area of 11 million residents.
• Industrial emissions, with the city hosting major manufacturing and logistics hubs.
• Transboundary haze, particularly from agricultural fires in Sumatra and Kalimantan during dry seasons.

The air quality alert follows a pattern of recurring pollution episodes in Jakarta, which has repeatedly ranked among the world’s most polluted cities in recent years. In 2025, the city recorded 183 days with unhealthy air, according to IQAir’s annual report, driven by a combination of urban sprawl, weak enforcement of emissions standards, and limited green infrastructure.

Local authorities have yet to issue a formal statement addressing the latest pollution spike. However, the Jakarta Environmental Agency (Dinas Lingkungan Hidup DKI Jakarta) has previously emphasized the need for stricter emissions controls, expanded public transportation networks, and community awareness campaigns to mitigate air quality crises. The agency’s 2025 action plan included:

• Expanding electric vehicle (EV) adoption, with incentives for private and public fleet conversions.
• Enforcing stricter industrial emissions regulations, targeting factories in the city’s eastern and western districts.
• Promoting car-free days in high-traffic zones to reduce congestion-related pollution.

Health officials have urged residents to minimize outdoor activities, particularly for vulnerable groups such as children, the elderly, and individuals with pre-existing respiratory conditions. The Indonesian Ministry of Health (Kementerian Kesehatan) advised the public to:

• Use N95 masks when venturing outside.
• Check real-time air quality updates via platforms like IQAir or the government’s Badan Pengawas Obat dan Makanan (BPOM) portal.
• Avoid strenuous exercise outdoors during peak pollution hours.

Jakarta’s struggle with air pollution reflects broader challenges in Southeast Asia, where rapid urbanization and industrial growth often outpace environmental safeguards. Neighboring cities such as Manila, Philippines, and Bangkok, Thailand, have also faced similar crises, prompting regional cooperation on transboundary haze management under the ASEAN Haze Agreement.

As of Friday afternoon, IQAir’s live data showed a slight improvement in Jakarta’s air quality, with PM2.5 levels dropping to 120 µg/m³—still classified as "unhealthy" but trending downward. However, meteorological forecasts suggest the possibility of stagnant air conditions in the coming days, raising concerns about prolonged exposure risks.

Residents and advocacy groups have called for immediate action, including:

• Accelerated implementation of the city’s 2026 Clean Air Action Plan.
• Stronger penalties for industrial polluters and vehicle emissions violations.
• Increased public awareness through school programs and media campaigns.

For real-time updates on Jakarta’s air quality, residents can monitor:

• IQAir World Air Quality Report: www.iqair.com
• DKI Jakarta Environmental Agency: www.dinaskota.dki.jakarta.go.id
• World Air Quality Index (WAQI): aqicn.org/city/jakarta/