TY - JOUR A1 - Meng, Z. Y. A1 - Xu, X. B. A1 - Yan, P. A1 - Ding, G. A. A1 - Tang, J. A1 - Lin, W. L. A1 - Xu, X. D. A1 - Wang, S. F. T1 - Characteristics of trace gaseous pollutants at a regional background station in Northern China JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 8 IS - 3 SP - 9405 EP - 9433 Y1 - 2008/05/23 PB - Copernicus Publications SN - 1680-7375 UR - http://www.atmos-chem-phys-discuss.net/8/9405/2008/ L1 - http://www.atmos-chem-phys-discuss.net/8/9405/2008/acpd-8-9405-2008.pdf DO - 10.5194/acpd-8-9405-2008 ER -