Marginal decrease in PM2.5 levels in 2022 added 1 year to avg life expectancy

A mere 10 microgram — a strand of human hair weighs 600 microgram — decline in the concentration of PM2.5 (particulate matter with a size of 2.5 micrometres or smaller) in 2022 has added a year to the average Indian’s life expectancy, according to the latest edition of the annual Air Quality Life Index (AQLI) report released by the Energy Policy Institute at the University of Chicago (EPIC).