The Conversation: The particles big and small that make up Saharan smog

Professor Rob MacKenzie has written an article for The Conversation entitled "The particles big and small that make up Saharan smog". The UK news media has been buzzing with reports of air pollution alerts associated, at least in part, with the long-range transport of dust from the Sahara. Colleagues from Africa have asked why we in the UK are worried about the health effects of a relatively rare occurrence of this long-range dust all the way across Europe, when African countries experience dust storms of much higher intensity almost daily at some times of year.