nanoparticles

A digital illustration in watercolor and pencil shows a human with a melancholy expression at the center of the image. Their head is encircled by air pollution that billows up from surrounding smoke stacks. The background depicts a city at night.

Depressed? Anxious? Air pollution may be a factor
BY: - April 21, 2023

In the 1990s, residents of Mexico City noticed their dogs acting strangely — some didn’t recognize their owners, and the animals’ sleep patterns had changed. At the time, the sprawling, mountain-ringed city of more than 15 million people was known as the most polluted in the world, with a thick, constant haze of fossil fuel […]

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