*PM _2.5 concentrations measured in micrograms of particles per cubic meter of air (µg/m3) Data: WHO Global Platform on Air Quality & Health

WHO Guideline (10)Lowest level at which premature mortality risk increases in response to long-term exposure

Interim target 1 (35)Associated with 15% higher premature mortality relative to the WHO guideline of 10 µg/m3

Interim target 2 (25)Associated with 6% lower premature mortality risk relative to Interim Target 1 (35 µg/m3)

Interim target 3 (15)Associated with 6% lower premature mortality risk relative to Interim Target 2 (25 µg/m3)