Shining a light in the fog makes these particles visible. As for the 'chemical' smell people have described, fog can absorb and trap polluted air near the Earth's surface, acting as a carrier for ...

Driving in the fog can be tricky, but cars are built with fog lights to make it easier. However using them at the wrong times can land you with hefty fines and can be breaking driving laws.

Street lights have been blotted out by the smog and ... from vehicles and fossil fuels closer to the ground. Mixed with fog, it can stick around for days, meaning the city often suffers with ...