Date_Month,Month_average (ug/m3),EPA Standard (ug/m3),ATSDR Standard (ug/m3),WHO Standard (ug/m3) 2009 Aug.,0.134636667,0.05,0.3,0.15 2009 Sep.,0.047975,0.05,0.3,0.15 2009 Oct.,0.253766,0.05,0.3,0.15 2009 Nov.,0.0394,0.05,0.3,0.15 2009 Dec.,--,0.05,0.3,0.15 2010 Jan.,--,0.05,0.3,0.15 2010 Feb.,--,0.05,0.3,0.15 2010 Mar.,--,0.05,0.3,0.15 2010 Apr.,--,0.05,0.3,0.15 2010 May,--,0.05,0.3,0.15 2010 Jun.,--,0.05,0.3,0.15 2010 Jul.,--,0.05,0.3,0.15 2010 Aug.,--,0.05,0.3,0.15 2010 Sep.,--,0.05,0.3,0.15 2010 Oct.,--,0.05,0.3,0.15 2010 Nov.,--,0.05,0.3,0.15 2010 Dec.,--,0.05,0.3,0.15 2011 Jan.,--,0.05,0.3,0.15 2011 Feb.,--,0.05,0.3,0.15 2011 Mar.,--,0.05,0.3,0.15 2011 Apr.,--,0.05,0.3,0.15 2011 May,--,0.05,0.3,0.15 2011 Jun.,--,0.05,0.3,0.15 2011 Jul.,--,0.05,0.3,0.15 2011 Aug.,--,0.05,0.3,0.15 2011 Sep.,--,0.05,0.3,0.15 2011 Oct.,--,0.05,0.3,0.15 2011 Nov.,--,0.05,0.3,0.15 2011 Dec.,0.03800375,0.05,0.3,0.15 2012 Jan.,0.077015909,0.05,0.3,0.15 2012 Feb.,0.1266316,0.05,0.3,0.15