
There’s something alive in fog — and it’s eating pollution
Fog is alive with bacteria that eat pollution, new study findsThere’s something living inside of fog. Yes, really, and this new study just discovered it. Fog is actually full of so much life that the researchers liken it to a vast aquatic ecosystem unto itself. What is fog? To start with the basics, fog is basically just a cloud that is low to the ground: water vapor that has condensed or frozen to form tiny droplets or crystals in the air. The most common form of fog is known as radiation fog, and that’s what these researchers collected samples of to test in their study. It typically occurs on clear nights as the ground cools the moist air immediately above it. Studying fog isn't easy, especially if we want to know how the bacteria in the air changes over the course of hours. We’d want to try to sample the same air before, during and after the fog appears, but wind can move everything around. That’s why this specific type of more still and stagnant fog was used. A foggy post-sunset scene in Dartmoor woods in England.(Simon Hodgkiss via Getty Images)Fog as a habitat and what’s living in itResearchers found millions of bacteria inhabiting the fog droplets.
















