Several areas in Metro Manila recorded “very unhealthy” to “acutely unhealthy” air quality on Tuesday morning due to elevated levels of fine particulate matter, according to the Department of Environment and Natural Resources (DENR) Environmental Management Bureau–National Capital Region (EMB-NCR).

The DENR-EMB-NCR said its monitoring stations in Las Piñas, Malabon, Mandaluyong, Manila, Marikina, Muntinlupa, Parañaque, Quezon City, San Juan, Taguig and Valenzuela recorded acutely unhealthy air quality.

Very unhealthy levels were recorded in Makati, Navotas, Pateros and two monitoring stations in Quezon City.

_{Photo from DENR (REAL TIME – Ambient Air Quality Monitoring)}

The agency said the elevated PM2.5 levels may be associated with smoke and haze from ongoing fires in Kalimantan, Indonesia, which were transported toward the Philippines by prevailing winds.

The public was advised to limit prolonged outdoor activities, particularly those sensitive to air pollution.

The DENR-EMB-NCR said it continues to monitor the situation and will issue further advisories as necessary.