Long-term exposure to ozone increases cardiovascular mortality, according to a new study

Long-term exposure to ozone gas has been linked to an increased risk of cardiovascular death in a Chinese study. The cohort study includes nearly 100,000 Chinese adults ages 18 and older, according to findings published in the journal Lancet Planetary Health. The study participants were followed for nine years. The study was conducted by Chinese researchers from Fudan University and the Chinese Center for Disease Control and Prevention. It found a link between ozone gas and overall mortality from cardiovascular disease, which increased by 9.3% for every ten micrograms per cubic meter of increase in ozone concentrations during the warm season.

In the same condition, ischemic heart disease and stroke witnessed an increase in their mortality risk of 18.4 percent and 6.3 percent, respectively, the results said. They also found that the association of long-term ozone exposure with cardiovascular mortality was more prominent in participants aged 65 and older, indicating that the elderly may be vulnerable to atmospheric ozone pollution. The study results are likely to inform future revisions to air quality standards and environmental impact assessments in China, said Kan Haidong, a professor at the university.

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