Air quality in MM, Tagaytay improves

Air quality in Metro Manila has returned to "good" levels following the smog and haze that led to the suspension of face-to-face classes on Monday.

- ROMINA CABRERA

The Department of Environment and Natural Resources (DENR) said the air quality index recorded "good" in most of the monitoring stations in the National Capital Region as of 11 a.m. yesterday.

Testing for particulate matter (PM) 2.5, stations in Makati, Pateros and Parañaque were good while Caloocan was classified as fair.

The station in Tagaytay also tested good for the PM2.5 air quality index.

PM2.5 are fine inhalable particles that are 2.5 micrometers or smaller that are found in the air, which include dust, dirt, soot and smoke.

These particles can penetrate into the lungs and even enter the bloodstream.

The monitoring stations also yielded good air quality in Caloocan, San Juan, Makati, Parañaque and Pateros when monitoring for PM10.

Meanwhile, Taguig scored fair levels for PM10.

The air quality registered very unhealthy in Makati, Caloocan, Pateros and Parañaque City on Monday.