Swiss supermarkets have removed eggs from their shelves after millions of the product contaminated with a toxic pesticide were pulled from stores and destroyed in the Netherlands and Germany.
<p><span lang="EN-GB">In 1986, a fire at chemical company Sandoz caused dangerous toxins to seep into the air and the nearby river Rhine. A quarter of a century later, an expert on the accident says the site near Basel remains polluted. </span><strong></strong></p>
