Date,Manganese  (Nanograms/ cubic meter),Manganese Sample Screening Level 
8/12/2009,30,500
8/17/2009,54.6,500
8/23/2009,6.83,500
8/29/2009,8.19,500
9/4/2009,116,500
9/10/2009,621,500
9/16/2009,43.5,500
9/22/2009,48.8,500
9/28/2009,10.5,500
10/4/2009,4.44,500
6/26/2011,10.7,500
7/2/2011,262,500
7/8/2011,344,500
7/14/2011,985,500
7/20/2011,279,500
7/26/2011,152,500
8/1/2011,180,500
8/7/2011,9.62,500
8/13/2011,118,500
8/19/2011,1540,500
8/25/2011,25.8,500
8/31/2011,1230,500
9/6/2011,1530,500
9/12/2011,993,500
9/18/2011,29.8,500
9/24/2011,12.2,500
9/30/2011,6.63,500
10/6/2011,928,500
10/12/2011,2450,500
10/18/2011,295,500
10/24/2011,123,500
10/30/2011,9.68,500
11/5/2011,75.5,500
11/11/2011,20.3,500
11/17/2011,17.2,500
11/23/2011,34.7,500
11/29/2011,30.3,500
12/5/2011,524,500
12/11/2011,28.6,500
12/17/2011,7.21,500
12/23/2011,4.2,500
12/29/2011,1850,500
1/4/2012,11.2,500
1/10/2012,145,500
1/16/2012,326,500
1/22/2012,19.1,500
1/28/2012,8.16,500
Souce: https://www3.epa.gov/air/sat/EastElemenResults.html,,