Air Pollution Increase Following Termination of U.S. Monitoring Program

According to a study published on Monday, air pollution levels have surged in numerous cities globally. This uptick follows the cessation of air quality monitoring by U.S. embassies and consulates last year.

In March 2025, the Trump administration discontinued the program that shared independent air quality data at more than 80 U.S. diplomatic locations. The decision was attributed to budget limitations.

The program had been pivotal in providing reliable air quality readings, helping to inform local governments and residents about pollution levels.