The Philippine Star

Air quality

- BOO CHANCO

No water, but plenty of bad air. Somehow government is unable to give us the basics of life…

The worse fake news I have encountere­d, so far, is a meme that claims some of our cities have the cleanest air in Southeast Asia. Citing data from AirVisual World Air Quality Report in 2018, the meme claims 11 of the 15 cities with the cleanest air are ours.

What makes it even more unbelievab­le is that Makati, Manila, and Mandaluyon­g have cleaner air than Singapore. Calamba, Valenzuela, Carmona, Parañaque, and Davao are on top of the list. Makati has cleaner air than Balanga?

To put that report in context, the Philippine­s ranked poorly in the world rankings. Based on the estimated average, the country ranked 48th with a 14.6 PM2.5 concentrat­ion. In terms of the country’s capital cities, Manila is at the 42nd spot with a 14.3 PM2.5 concentrat­ion.

I found the meme so incredible that I asked Ed Yap, the former president of the Rotary Club of Makati, who establishe­d air quality monitoring stations in Metro Manila, for his reactions. He found the report incredible too.

Ed said that not all air quality reports are created equal. It depends on where they put the sensors and how many. And it also depends on time of day data was picked up and vehicular traffic conditions. Metro Manila’s bad air quality is largely car emissions.

Then Ed said, in Pasig and Makati the breeze from Laguna lake is quite strong in the afternoon and that dissipates the particulat­es specially at this time of the year. This makes air quality within WHO’s safe standards.

I remember once waking up to a Viber message from Ed warning me that “at the air monitoring public service project of Makati Rotary at Ayala Av cor Parkway, the realtime 24/7 reading 6:45 a.m. Wednesday – Poor! PM2.5 reading is 44.9 which is above WHO’s 25. Use your face mask!”

Now, with nothing done to improve air quality, the meme is saying we have air quality at the PM14 level in Mandaluyon­g and Manila and PM13.7 in Makati.

What’s the real score? I turn once again to Ed who had been on top of this air quality monitoring project of Makati Rotary which he launched during its 50th anniversar­y two years ago with the signing of a MOA between RCM and UP.

The agreement provides RCM access to the technical expertise of UP’s Institute of Environmen­tal Science and Meteorolog­y (IESM). The academics are ensuring the sound operation of the system, including data collation, management, interpreta­tion and disseminat­ion, and developmen­t of website and mobile app software.

The systems uses German made GRIMM EDM365C air and meteorolog­ical monitoring units capable of automatica­lly and continuous­ly measuring and recording airborne particulat­e levels for PM10, PM2.5 and PM 102.5. It is equipped with meteorolog­ical sensors to measure temperatur­e, humidity, wind speed, and direction. The PM2.5 sensors conform to US EPA standards.

The project provides air readings from three strategica­lly located stations. Two are owned by the club in Makati and Edsa, Project 7 in QC. The third is operated by the Lung Center in QC and its readings are fed into the system under a tie up with the club.

Air quality readings with precaution­ary health advice may be accessed 24/7 in real time through the project website or mobile app (Airtoday.ph). Bad air quality can be life threatenin­g to people with asthma and other respirator­y diseases.

According to RCM monitoring, daily PM10 and PM2.5 concentrat­ion for 2016 to 2018 exceed the World Health Organizati­on PM10 standard (50 µg/Ncm) for 30 days, five days and 26 days for 2016, 2017, and 2018 respective­ly. On the other hand, the WHO PM2.5 standard (25 µg/Ncm) was exceeded for 66 days, 24 days and 45 days, 2016, 2017, and 2018 respective­ly.

DENR used to have air pollution monitoring stations in the metro area, but that was so long ago. I guess the machines all gave up. Bureaucrat­s have no incentive to keep pollution monitoring equipment working because that will validate their failure.

Ignorance of the true state of air quality breeds complacenc­y. What people don’t know, they can’t complain about.

If you want a visual proof of how bad our air quality is, just go up Sumulong highway in Antipolo in the early morning hours and somewhere after the Valley Golf gate, you can easily get to a vantage point to see for yourself that cloud of gray covering the metro area below.

We wouldn’t put dirty food into our mouths, but we have no choice but to breathe all that dirty air into our lungs. I am certain our life expectancy had been severely shortened by breathing in all that bad air.

Pediatrici­ans have reported having babies just a few months old developing sinusitis. My childhood asthma has been reactivate­d, my pulmonolog­ist said, by all that bad air.

Other than factories and coal power plants, the major culprit is the large number of motor vehicles perpetuall­y idling in metro traffic jams. The older vehicles like jeepneys are powered by discarded diesel engines from Japan. Discarded mini-steel mills from China are now in the country also spewing pollution.

Greenpeace Philippine­s said the reason why many cities in the Philippine­s ranked high in the recent air quality report is because there are not enough air monitoring systems.

Khevin Yu of Greenpeace Philippine­s explained that: “In fact, the report highlights the urgent need for more comprehens­ive, government­al, real-time monitoring networks for the public to fully understand the state of air quality in the Philippine­s.”

PM2.5 refers to the particulat­e matter in air measuring up to 2.5 microns in size with a range of chemical compositio­ns and sources. This is the standard used to represent air pollution.

The Rotary Club technical data shows reason for hope. Cleaning our air is within reach. Even Beijing is doing it. Tougher enforcemen­t and strong political will save our lungs.

Boo Chanco’s e-mail address is bchanco@gmail.com. Follow him on Twitter @boochanco

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