Nearly a decade's worth of data collected across Singapore suggests increased concentrations of tiny particles in the air can trigger cardiac arrests, making the need to cut air pollution levels around the world even more urgent.
Researchers looked for particles at least 25 times smaller than the width of a human hair known as PM2.5 particles (for 2.5 micrometers in diameter). Their small size means they can be easily inhaled, and they've been linked to a host of health problems, including autoimmune diseases.-- More...