When you’re having a bad hair day, you might blame it on a few different things: the weather, the humidity, that new shampoo, a missed hair appointment. Can you also blame your bad hair day on air pollution?

A recent presentation at the 28th European Academy of Dermatology and Venereology (EADV) Congress in Madrid suggested that exposure to particulate matter (a common type of air pollutant) is linked to hair loss.