Media playback is unsupported on your device

Sahara dust causes sore throats and dirty cars

2 April 2014 Last updated at 12:49 BST

Government health advice has been issued amid warnings that pollution spreading across England will again hit high levels later.

The pollution - a mix of local and European emissions, and dust from the Sahara - has caused a thick layer of grime to form on cars and buildings around the country.

Pallab Ghosh reports.

Copyright © 2015 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.