Environmental officers are currently at the site of Rugby Cement in an attempt to solve the mysterious dust cloud problem. 
 
The Advertiser broke the news yesterday about how a soot-like substance had covered cars and homes in Rugby over the weekend.  
 
Many residents called our office to tell us about their experiences and have already submitted many pictures (see below).  
 
Now the Environment Agency has confirmed that officers are at Cemex’s Rugby Cement plant in Lawford Road, where they believe the dust cloud came from.