Did you know

Students affected by traffic pollution experience a drop in test scores, an increase in behavioral incidents and more absences.
– Heissel et al., 2019 (NBER)

Exposure to small-particle pollution (like PM_2.5 found in Ulaanbaatar) can increase the risk of infertility by 20%. Such exposure can also increase the time to pregnancy, or the time it takes for one to conceive.
– Li et al., 2021