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Microplastics have been found floating in Metro Manila air, a study confirmed.

READ: https://www.gmanetwork.com/news/scitech/science/868244/microplastics-are-already-present-in-metro-manila-air-study-confirms/story/

The study, published in March in the peer-reviewed journal Environmental Science and Pollution Research, estimates that a person can inhale a microplastic particle when exposed, without a mask in Metro Manila streets for 99-132 hours, or 4-5 days.