The AQLI allows you to see how much longer you would live if policies reduced pollution to meet the World Health Organization ’s guideline, a national standard, or a user-defined target.

Its 20 years of data show pollution has decreased in some parts of the world but increased in many more places, taking years off lives.

Across the globe, particulate pollution takes about 2 years off the average lifespan—making it more deadly than smoking and the world’s greatest external risk to human health.