TOAR shows present-day global ozone distribution and trends relevant to health; public database
Green Car Congress
FEBRUARY 6, 2018
Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. Source: University of Leicester. Source: University of Leicester. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb.
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