As of 12:30 PM yesterday, the DOST-PHIVOLCS has observed the presence of volcanic smog or vog over Taal Volcano, which has persisted until now. Continuous upwelling at the Taal Main Crater Lake has generated steam plumes reaching 2,400 meters before drifting west-southwest.
On September 21, 2023, a total of 4,569 tonnes/day of volcanic sulfur dioxide (SO2) gas emissions from the Taal Main Crater were recorded. Satellite monitors have also detected a significant SO2 cloud over and west of Taal Lake.
Those living in towns nearby Taal Volcano should heed these precautions and stay safe.
PHIVOLCS, however, has clarified that smog over Metro Manila is due to pollution and thermal inversion and not because of the Taal Volcano.
"PAG-ASA released information today that there is thermal inversion of the atmosphere over Metro Manila and some parts of Southern Luzon. This means that the atmosphere is layered and is unable to mix, causing pollution which we normally generate every day...to accumulate over the metropolis," PHIVOLCS Chief of Volcano Monitoring and Eruption Prediction Division Mariton Bornas said in an interview with ANC today, September 22.