Airports
      
		  
		  Runway length and condition, access to other 
		  modes of transportation and air traffic control are just some of the 
		  relevant factors. The primary problem in a volcanic eruption is clouds 
		  of ash and debris
ejected into the stratosphere may make flying 
		  impossible and may expose grounded planes to danger. 
Access this 
		  form by clicking on a grid row for the desired country on the previous 
		  form.