TY - JOUR A1 - Hennigan, C. J. A1 - Izumi, J. A1 - Sullivan, A. P. A1 - Weber, R. J. A1 - Nenes, A. T1 - A critical evaluation of proxy methods used to estimate the acidity of atmospheric particles JO - Atmos. Chem. Phys. J1 - ACP VL - 15 IS - 5 SP - 2775 EP - 2790 Y1 - 2015/03/10 PB - Copernicus Publications SN - 1680-7324 UR - https://acp.copernicus.org/articles/15/2775/2015/ L1 - https://acp.copernicus.org/articles/15/2775/2015/acp-15-2775-2015.pdf DO - 10.5194/acp-15-2775-2015 ER -