TY  - JOUR
A1  - Clements, N 
A1  - Piedrahita, R 
A1  - Ortega, J 
A1  - Peel, J L
A1  - Hannigan, M 
A1  - Miller,   
A1  - S, L 
A1  - Milford, J B
T1  - Characterization and nonparametric regression of rural and urban coarse particulate matter mass concentrations in Northeastern Colorado.
Y1  - 2012/01/
N1  - R833744
VL  - 46
IS  - 1
SP  - 108
EP  - 123
ER  -