TY - JOUR
T1 - Characterization of black carbon-containing particles from soot particle aerosol mass spectrometer measurements on the R/V Atlantis during CalNex 2010
AU - Massoli, Paola
AU - Onasch, Timothy B.
AU - Cappa, Christopher D.
AU - Nuamaan, Ibraheem
AU - Hakala, Jani
AU - Hayden, Katherine
AU - Li, Shao Meng
AU - Sueper, Donna T.
AU - Bates, Timothy S.
AU - Quinn, Patricia K.
AU - Jayne, John T.
AU - Worsnop, Douglas R.
N1 - Funding Information:
The authors thank the crew of the R/V Atlantis, and Derek Coffman and Drew Hamilton of NOAA PMEL for their assistance and help during the project. Thanks to Eric Williams and Brian Lerner (NOAA CSD) for sharing the CO, CO2,NOx, NOy, and O3 data, and to Alexander Vlashenko (Environment Canada) for sharing the VOC data. We thank Manjula Canagaratna and Leah Williams for their useful comments. This project was funded by the NOAA Global Climate Change Program (NA09AR4310125 and NA09OAR4310124), the California Air Resources Board, the National Center for Environmental Research (NCER) at USEPA (RD834558), the Canadian Federal Government (PERD Project C12.007), and NSERC. The SP-AMS instrument was developed with funding from the U.S. Department of Energy SBIR Program (DE-FG02-07ER8489009). This manuscript has not been reviewed by any of the funding agencies. The results shown in the paper will be provided to the readers. The SP-AMS data can be accessed via the data server of the Pacific Marine Environmental Laboratory, PMEL (http:// saga.pmel.noaa.gov/Field/CalNex/index. html). Other data and, if necessary, the code used in obtaining the results presented here will be provided upon inquiring to the corresponding author ([email protected]).
Publisher Copyright:
© 2015. American Geophysical Union. All Rights Reserved.
PY - 2015
Y1 - 2015
N2 - We presentmass spectrometrymeasurements of black carbon-containing particlesmade on board the R/V Atlantis during the CalNex (California Research at the Nexus of Air Quality and Climate Change) 2010 study using an Aerodyne Research Inc. soot particle aerosol mass spectrometer (SP-AMS). The R/V Atlantis was deployed to characterize airmassesmoving offshore the California coast and to assess emissions fromsources in urban ports. This work presents a first detailed analysis of the size-resolved chemical composition of refractory black carbon (rBC) and of the associated coating species (NR-PMBC). A colocated standard high-resolution aerosolmass spectrometer (HR-AMS) measured the total nonrefractory submicron aerosol (NR-PM1). Our results indicate that, on average, 35% of the measured NR-PM1 mass (87% of the primary and 28% of the secondary NR-PM1, as obtained from the mass-weighted average of the NR-PMBC species) was associated with rBC. The peak in the average size distribution of the rBC-containing particles measured by the SP-AMS in vacuum aerodynamic diameter (dva) varied from ~100 nm to ~450 nm dva, with most of the rBC mass below 200 dva. The NR-PMBC below 200 nm dva was primarily organic, whereas inorganics were generally found on larger rBC-containing particles. Positive matrix factorization analyses of both SP-AMS and HR-AMS data identified organic aerosol factors that were correlated in time but had different fragmentation patterns due to the different instruments vaporization techniques. Finally, we provide an overview of the volatility properties of NR-PMBC and report the presence of refractory oxygen species in some of the air masses encountered.
AB - We presentmass spectrometrymeasurements of black carbon-containing particlesmade on board the R/V Atlantis during the CalNex (California Research at the Nexus of Air Quality and Climate Change) 2010 study using an Aerodyne Research Inc. soot particle aerosol mass spectrometer (SP-AMS). The R/V Atlantis was deployed to characterize airmassesmoving offshore the California coast and to assess emissions fromsources in urban ports. This work presents a first detailed analysis of the size-resolved chemical composition of refractory black carbon (rBC) and of the associated coating species (NR-PMBC). A colocated standard high-resolution aerosolmass spectrometer (HR-AMS) measured the total nonrefractory submicron aerosol (NR-PM1). Our results indicate that, on average, 35% of the measured NR-PM1 mass (87% of the primary and 28% of the secondary NR-PM1, as obtained from the mass-weighted average of the NR-PMBC species) was associated with rBC. The peak in the average size distribution of the rBC-containing particles measured by the SP-AMS in vacuum aerodynamic diameter (dva) varied from ~100 nm to ~450 nm dva, with most of the rBC mass below 200 dva. The NR-PMBC below 200 nm dva was primarily organic, whereas inorganics were generally found on larger rBC-containing particles. Positive matrix factorization analyses of both SP-AMS and HR-AMS data identified organic aerosol factors that were correlated in time but had different fragmentation patterns due to the different instruments vaporization techniques. Finally, we provide an overview of the volatility properties of NR-PMBC and report the presence of refractory oxygen species in some of the air masses encountered.
UR - http://www.scopus.com/inward/record.url?scp=84927657859&partnerID=8YFLogxK
U2 - 10.1002/2014JD022834
DO - 10.1002/2014JD022834
M3 - Article
AN - SCOPUS:84927657859
SN - 0148-0227
VL - 120
SP - 2575
EP - 2593
JO - Journal of Geophysical Research
JF - Journal of Geophysical Research
IS - 6
ER -
