Research News

Even low levels of air pollution are linked to more deaths in over 65s, study finds

BMJ 2015; 350 doi: https://doi.org/10.1136/bmj.h3043 (Published 05 June 2015) Cite this as: BMJ 2015;350:h3043
  1. Ingrid Torjesen
  1. 1London

Death rates in people aged over 65 are higher in areas where the air contains more fine particulate matter (PM2.5), even when levels are in line with recommended standards, a study published online in Environmental Health Perspectives has shown.1

Although exposure to high levels of fine particulate matter has been shown to increase mortality, the effect of levels within the recommended range has been unclear. In the United States the Environmental Protection Agency (EPA) recommends that PM2.5 exposure should not exceed a 12 microgram/m3 yearly average or a 35 microgram/m3 daily average. The World Health …

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