Beijing resident Tan Liang takes readings of microscopic air pollutants on a PM2.5 detector outside his residential compound in the capital. PM2.5 is causing thousands of deaths on the mainland. Photo: AP

PM2.5 air pollutants causing more deaths than estimated, study says

A study reveals that the health risks posed by microscopic air pollutants have been grossly understated, with huge economic consequences

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Beijing resident Tan Liang takes readings of microscopic air pollutants on a PM2.5 detector outside his residential compound in the capital. PM2.5 is causing thousands of deaths on the mainland. Photo: AP
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