Airborne measurement of inorganic ionic components of fine aerosol particles using the particle-into-liquid sampler coupled to ion chromatography technique during ACE-Asia and TRACE-P Export

@article{leeJGR2003, abstract = {Eight inorganic ions in fine aerosol particles (Dp < 1.3 μm) were measured on board the NCAR C130 and NASA P-3B aircraft during the 2001 Aerosol Characterization Experiment (ACE)-Asia and the Transport and Chemical Evolution over the Pacific (TRACE-P) experiments, respectively. Concentrations of NH4 +, SO4 2−, NO3 −, Ca2+, K+, Mg2+, Na+, and Cl− were determined using a particle-into-liquid sampler coupled to ion chromatography (PILS-IC) technique at a 4-min resolution and a limit of detection <0.05 μg m−3. The maximum total ion concentrations observed on the C130 and the P-3B were 27 μg m−3 and 84 μg m−3, respectively. During ACE-Asia, NH4 + and SO4 2− dominated, with the dust-derived Ca2+ contributing nearly equally as SO4 2− in mixing ratios. The sea-salt-derived Na+ and Cl− were comparable to biomass-burning tracer K+, showing >1 ppbv only in the top 1\% sample population. During TRACE-P, NH4 + dominated, followed by SO4 2−, Cl−, Na+, NO3 −, Ca2+, and K+, in decreasing order of importance. In addition to a sea-salt origin, Cl− showed a source in urban emissions possibly related to biofuel combustion. Both sea salt and dust contributed to Mg2+. In both experiments, NH4 +, SO4 2−, NO3 −, and CO were strongly correlated, indicating that combustion was the dominant source of these species and that NH3 and other alkaline materials were in sufficient supply to neutralize H2SO4. The [NH4 +] to ([NO3 −] + 2[SO4 2−]) ratio was ∼0.70 in the two campaigns, with deviations found only in volcano plumes, whereby SO4 2− was found to correlate with SO2. Charge balance of the ions showed both positive and negative deviations whose magnitudes, ∼30\%, provide estimates of the lower limits of unmeasured ions. Elevated NO3 − and Ca2+ coexist mainly under polluted conditions, suggesting the importance of sequestering HNO3 by mineral dust. }, author = {Lee, Y. N. and Weber, R. and Ma, Y. and Orsini, D. and Maxwell-Meier, K. and Blake, D. and Meinardi, S. and Sachse, G. and Harward, C. and Chen, T. Y. and Thornton, D. and Tu, F. H. and Bandy, A.}, citeulike-article-id = {5391621}, citeulike-linkout-0 = {http://www.agu.org/pubs/crossref/2003/2002JD003265.shtml}, citeulike-linkout-1 = {http://dx.doi.org/10.1029/2002JD003265}, day = {13}, doi = {10.1029/2002JD003265}, issn = {0148-0227}, journal = {Journal of Geophysical Research - Atmospheres}, keywords = {ace-asia, chemistry, instrument, ion-chromatography}, month = {September}, number = {D23}, pages = {8646+}, posted-at = {2009-08-07 12:30:41}, priority = {2}, title = {Airborne measurement of inorganic ionic components of fine aerosol particles using the particle-into-liquid sampler coupled to ion chromatography technique during ACE-Asia and TRACE-P}, url = {http://dx.doi.org/10.1029/2002JD003265}, volume = {108}, year = {2003} }

TY - JOUR ID - leeJGR2003 L3 - citeulike-article-id:5391621 N2 - Eight inorganic ions in fine aerosol particles (Dp < 1.3 μm) were measured on board the NCAR C130 and NASA P-3B aircraft during the 2001 Aerosol Characterization Experiment (ACE)-Asia and the Transport and Chemical Evolution over the Pacific (TRACE-P) experiments, respectively. Concentrations of NH4 +, SO4 2−, NO3 −, Ca2+, K+, Mg2+, Na+, and Cl− were determined using a particle-into-liquid sampler coupled to ion chromatography (PILS-IC) technique at a 4-min resolution and a limit of detection <0.05 μg m−3. The maximum total ion concentrations observed on the C130 and the P-3B were 27 μg m−3 and 84 μg m−3, respectively. During ACE-Asia, NH4 + and SO4 2− dominated, with the dust-derived Ca2+ contributing nearly equally as SO4 2− in mixing ratios. The sea-salt-derived Na+ and Cl− were comparable to biomass-burning tracer K+, showing >1 ppbv only in the top 1% sample population. During TRACE-P, NH4 + dominated, followed by SO4 2−, Cl−, Na+, NO3 −, Ca2+, and K+, in decreasing order of importance. In addition to a sea-salt origin, Cl− showed a source in urban emissions possibly related to biofuel combustion. Both sea salt and dust contributed to Mg2+. In both experiments, NH4 +, SO4 2−, NO3 −, and CO were strongly correlated, indicating that combustion was the dominant source of these species and that NH3 and other alkaline materials were in sufficient supply to neutralize H2SO4. The [NH4 +] to ([NO3 −] + 2[SO4 2−]) ratio was ∼0.70 in the two campaigns, with deviations found only in volcano plumes, whereby SO4 2− was found to correlate with SO2. Charge balance of the ions showed both positive and negative deviations whose magnitudes, ∼30%, provide estimates of the lower limits of unmeasured ions. Elevated NO3 − and Ca2+ coexist mainly under polluted conditions, suggesting the importance of sequestering HNO3 by mineral dust. IS - D23 JF - Journal of Geophysical Research - Atmospheres SN - 0148-0227 TI - Airborne measurement of inorganic ionic components of fine aerosol particles using the particle-into-liquid sampler coupled to ion chromatography technique during ACE-Asia and TRACE-P VL - 108 SP - 8646 KW - ace-asia KW - chemistry KW - instrument KW - ion-chromatography AU - Lee, YN AU - Weber, R AU - Ma, Y AU - Orsini, D AU - Maxwell-Meier, K AU - Blake, D AU - Meinardi, S AU - Sachse, G AU - Harward, C AU - Chen, TY AU - Thornton, D AU - Tu, FH AU - Bandy, A PY - 2003/09/13/ UR - http://dx.doi.org/10.1029/2002JD003265 ER -