Scottish Dunbar cement works has passed a milestone in its GBP 20m programme to reduce emissions and improve environmental performance.  A pre-cyclone system has been commissioned at Lafarge Cement UK’s Dunbar works, which will reduce dust emissions below stringent new limits introduced last December in the European Union’s Waste Incineration Directive.  The system is the first phase of a larger project to install a gas scrubbing system to cut the plant’s sulphur dioxide emissions.