Air Emissions from Swine Buildings in Missouri: Carbon Dioxide Concentration A. J. Heber, J.-Q. Ni, T.-T. Lim, P.-C. Tao, Purdue University; A. M. Schmidt, University of Missouri Day of Test (mm/dd) Concentration, ppm Temperature, O C; Number of Animal Units Data analyzed by P. -C. Tao Data presented as hourly averages Pig G roup 1:August29 -N ovem ber20,'02 0 2000 4000 6000 8000 8/28 9/4 9/11 9/18 9/25 10/2 10/9 10/16 10/23 10/30 11/6 11/13 11/20 -30 40 110 180 250 CO 2,B arn 7 CO 2,Barn 8 Am b T Pig m ass,B arn 7 Pig m ass,B arn 8 Pig G roup 1:N ovem ber19-25,'02 /Pig G roup 2:D ecem ber12,'02 -Februery 11,'03 0 2000 4000 6000 8000 11/19 11/26 12/3 12/10 12/17 12/24 12/31 1/7 1/14 1/21 1/28 2/4 2/11 -30 40 110 180 250 CO 2,Barn 7 CO 2,Barn 8 Am b T Pig m ass,Barn 7 Pig m ass,Barn 8 Pig G roup 2:Februery 9 -April10,'03 0 2000 4000 6000 8000 2/10 2/17 2/24 3/3 3/10 3/17 3/24 3/31 4/7 4/14 4/21 4/28 -30 40 110 180 250 CO 2,Barn 7 CO 2,Barn 8 Am b T Pig m ass,Barn 7 Pig m ass,Barn 8 Pig G roup 3:M ay 1 - July 22,'03 0 2000 4000 6000 8000 4/30 5/7 5/14 5/21 5/28 6/4 6/11 6/18 6/25 7/2 7/9 7/16 7/23 -30 40 110 180 250 CO 2,B arn 7 CO 2,Barn 8 Am b T P ig m ass,Barn 7 Pig m ass,B arn 8