TY - JOUR A1 - Parrish, D. D. A1 - Ryerson, T. B. A1 - Mellqvist, J. A1 - Johansson, J. A1 - Fried, A. A1 - Richter, D. A1 - Walega, J. G. A1 - Washenfelder, R. A. A1 - de Gouw, J. A. A1 - Peischl, J. A1 - Aikin, K. C. A1 - McKeen, S. A. A1 - Frost, G. J. A1 - Fehsenfeld, F. C. A1 - Herndon, S. C. T1 - Primary and secondary sources of formaldehyde in urban atmospheres: Houston Texas region JO - Atmos. Chem. Phys. J1 - ACP VL - 12 IS - 7 SP - 3273 EP - 3288 Y1 - 2012/04/05 PB - Copernicus Publications SN - 1680-7324 UR - https://acp.copernicus.org/articles/12/3273/2012/ L1 - https://acp.copernicus.org/articles/12/3273/2012/acp-12-3273-2012.pdf DO - 10.5194/acp-12-3273-2012 ER -