Date,Lead Non-FRM/FEM (Nanograms/cubic meter),Manganese (Nanograms/cubic meter) Sample Screening Level,150,500 8/17/2009,--,43.7 8/23/2009,--,4.15 8/29/2009,1.68,54.1 9/4/2009,5.16,-- 9/10/2009,4.31,-- 9/16/2009,4.13,12.3 9/22/2009,1.95,3.59 9/28/2009,1.21,14.4 10/4/2009,1.79,12.3 10/10/2009,2.34,-- 10/16/2009,2.46,7.4 10/22/2009,12.2,373 10/28/2009,2.87,94.2 11/3/2009,6.47,438 11/15/2009,11.4,238 12/23/2011,,2.41 12/24/2011,,73.4 12/25/2011,,85.7 12/26/2011,,-- 12/27/2011,,80.1 12/28/2011,,5.02 12/29/2011,,22.9 12/30/2011,,21.9 12/31/2011,,12.6 1/1/2012,,12.6 1/2/2012,,-- 1/3/2012,,15.2 1/4/2012,,-- 1/5/2012,,-- 1/6/2012,,-- 1/7/2012,,56.3 1/8/2012,,11.5 1/9/2012,,405 1/10/2012,,189 1/11/2012,,-- 1/12/2012,,192 1/13/2012,,18.2 1/14/2012,,-- 1/15/2012,,-- 1/16/2012,,-- 1/17/2012,,-- 1/18/2012,,4.08 1/19/2012,,96.8 1/20/2012,,4.86 1/21/2012,,2.3 1/22/2012,,1.69 1/23/2012,,11.6 1/24/2012,,145 1/25/2012,,12.4 1/26/2012,,7.82 1/27/2012,,18.3 1/28/2012,,35.6 1/29/2012,,254 1/30/2012,,33.1 1/31/2012,,167 2/1/2012,,379 2/2/2012,,11.6 2/3/2012,,9.56 2/4/2012,,5.64 2/5/2012,,3.16 2/6/2012,,288 2/7/2012,,953 2/8/2012,,5.12 2/9/2012,,15.8 2/10/2012,,156 2/11/2012,,31.4 2/12/2012,,6.41 2/13/2012,,337 2/14/2012,,66.1 2/15/2012,,11.3 2/16/2012,,59.4 2/17/2012,,9.65 2/18/2012,,223 2/19/2012,,3.39 2/20/2012,,9.73 2/21/2012,,120 2/22/2012,,222 2/23/2012,,163 2/24/2012,,73.5 2/25/2012,,3.03 –– = Sample not taken or invalid,, Source: https://www3.epa.gov/air/sat/TheOhioValAddl.html,,