Kindergartners at a brand-new school in Bayankhoshuu, one of the most polluted neighborhoods in Ulaanbaatar. With twice the respiratory rate of adults, children under 5 are particularly vulnerable to pollution-related disease.

Kindergartners at a brand-new school in Bayankhoshuu, one of the most polluted neighborhoods in Ulaanbaatar. With twice the respiratory rate of adults, children under 5 are particularly vulnerable to pollution-related disease.