MICROGRAM/CUBIC METER TO GRAIN/QUART [US] ( TO ) FORMULA 
		
		 To convert between Microgram/cubic Meter and Grain/quart [US] you have to do the following: 
				
		
	
		First divide  1.0E-9/1 / ((0.45359237/16)*(192/175)/480)/(0.0037854118/4) = 0.00000001 
		Then multiply the amount of Microgram/cubic Meter you want to convert to Grain/quart [US], use the chart below to guide you.
		
		MICROGRAM/CUBIC METER TO GRAIN/QUART [US] ( TO ) CHART
		
			- 1 microgram/cubic meter in grain/quart [US] = 0.00000001 
 - 10 microgram/cubic meter in grain/quart [US] = 0.00000015 
 - 50 microgram/cubic meter in grain/quart [US] = 0.00000073 
 - 100 microgram/cubic meter in grain/quart [US] = 0.00000146 
 - 250 microgram/cubic meter in grain/quart [US] = 0.00000365 
 - 500 microgram/cubic meter in grain/quart [US] = 0.0000073 
 - 1,000 microgram/cubic meter in grain/quart [US] = 0.0000146 
 - 10,000 microgram/cubic meter in grain/quart [US] = 0.00014604