Using chemical ionization mass spectrometry for detection of HNO3, HCl, and ClONO2 in the atmosphere

Marcy, T. P.; Gao, R. S.; Northway, M. J.; Popp, Peter; Stark, Harald; Fahey, D. W.

doi:10.1016/j.ijms.2004.11.012

Cited by 40 publications

(33 citation statements)

References 30 publications

(68 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to test the accuracy of newly developed NH 3 measurement capabilities, two CIMS techniques were used to detect gas phase NH 3 . Various types of chemical ionization techniques have been used to measure atmospheric trace gases [ Clemitshaw , 2004; de Gouw et al , 2004; Fehsenfeld et al , 2002; Fortner et al , 2004; Huey et al , 2004; Marcy et al , 2005; Nowak et al , 2002; Slusher et al , 2004]. CIMS techniques use ion‐molecule reactions to selectively ionize trace species of interest in ambient air.…”

Section: Methodsmentioning

confidence: 99%

Analysis of urban gas phase ammonia measurements from the 2002 Atlanta Aerosol Nucleation and Real‐Time Characterization Experiment (ANARChE)

et al. 2006

View full text Add to dashboard Cite

[1] Gas phase ammonia (NH 3 ) measurements were made in July and August 2002 during the Atlanta Aerosol Nucleation and Real-Time Characterization Experiment with two different chemical ionization mass spectrometry techniques. Correlations between the 1 min data from both instruments yielded a slope of 1.17 and an intercept of À0.295 ppbv, with a linear correlation coefficient (r 2 ) of 0.71. Ambient NH 3 mixing ratios ranged from 0.4 to 13 ppbv. NH 3 observations were compared to the Community Multiscale Air Quality (CMAQ) modeling system as well as a thermodynamic equilibrium model, ISORROPIA, used by CMAQ to predict NH 3 partitioning. A morning rise in both observed and modeled NH 3 mixing ratios strongly suggests a regional influence due to automobile emissions. However, at midday the predicted NH 3 decreased to less than 0.5 ppbv, while the observations remained around 3 ppbv. Both observed and modeled ammonium nitrate levels were too low to support the observed midday NH 3 mixing ratios. ISORROPIA calculations of NH 3 constrained by the total measured ammonia mass (NH 3 + ammonium (NH 4 + )) agreed well with the observations (slope of 1.25 and r 2 of 0.75). For times when the net aerosol charge was near zero the agreement was excellent (slope of 1.22 and r 2 of 0.88). These results indicate that for most of the observed conditions, ISORROPIA could accurately predict NH 3 partitioning. The observations suggest that local sunlight-or temperature-driven NH 3 sources, such as soil emissions, may be responsible for the discrepancy between the model results and measured values.

show abstract

Section: Methodsmentioning

confidence: 99%

Analysis of urban gas phase ammonia measurements from the 2002 Atlanta Aerosol Nucleation and Real‐Time Characterization Experiment (ANARChE)

et al. 2006

View full text Add to dashboard Cite

show abstract

“…The precision estimate is based on analysis of the statistical counting noise in measurements made when the HNO 3 mixing ratio is relatively constant. The CIMS instrument has been described in detail by Neuman et al [2000] and Marcy et al [2005].…”

Section: Comparison To In Situ Observations During Houston Avementioning

confidence: 99%

Global observations of HNO₃ from the High Resolution Dynamics Limb Sounder (HIRDLS): First results

Kinnison¹,

Gille²,

Barnett³

et al. 2008

J. Geophys. Res.

View full text Add to dashboard Cite

[1] We present the first evaluation of the HNO 3 data product (version 2.04.09) from the High Resolution Dynamics Limb Sounder (HIRDLS) on the Earth Observing System (EOS) Aura satellite. The HIRDLS instrument obtains between 5000 and 7000 HNO 3 profiles per day. HIRDLS HNO 3 data are generally good over the latitude range of 64°S to 80°N and pressure range 100 to 10 hPa, with some profiles, depending on latitude, having useful information between 100 to 161 hPa. The individual profile ''measured'' precision is between 10 and 15%, but can be much larger if the HNO 3 abundance is low or outside the 100 hPa to 10 hPa range. Global results are compared with the HNO 3 observations from version 2.2 of the EOS Aura Microwave Limb Sounder (MLS), and it is found that large-scale features are consistent between the two instruments. HIRDLS HNO 3 is biased 0-20% low relative to Aura MLS in the mid-to-high latitudes and biased high in the tropical stratosphere. HIRDLS HNO 3 is also compared with Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS). In these mostly highlatitude comparisons the HIRDLS HNO 3 data are biased 10-30% low, depending on altitude. Finally, the HIRDLS HNO 3 is compared to in situ data taken by the NOAA Chemical Ionization Mass Spectrometer (CIMS) instrument flown during the 2005 NASA Houston Aura Validation Experiment (AVE) and the ability of HIRDLS to measure HNO 3 in the UTLS region is examined.

show abstract

“…It is worth noting here that the CIMS instrument is capable of measuring hydrochloric acid (HCl) and chlorine nitrate (ClONO 2 ) in addition to HNO 3 (Marcy et al, 2005). During flight, the CIMS instrument measures HNO 3 for 3 s out of every 10-s period.…”

Section: Particle Composition and Sizementioning

confidence: 99%

The observation of nitric acid-containing particles in the tropical lower stratosphere

et al. 2006

View full text Add to dashboard Cite

show abstract

Using chemical ionization mass spectrometry for detection of HNO3, HCl, and ClONO2 in the atmosphere

Cited by 40 publications

References 30 publications

Analysis of urban gas phase ammonia measurements from the 2002 Atlanta Aerosol Nucleation and Real‐Time Characterization Experiment (ANARChE)

Analysis of urban gas phase ammonia measurements from the 2002 Atlanta Aerosol Nucleation and Real‐Time Characterization Experiment (ANARChE)

Global observations of HNO₃ from the High Resolution Dynamics Limb Sounder (HIRDLS): First results

The observation of nitric acid-containing particles in the tropical lower stratosphere

Contact Info

Product

Resources

About

Using chemical ionization mass spectrometry for detection of HNO3, HCl, and ClONO2 in the atmosphere

Cited by 40 publications

References 30 publications

Analysis of urban gas phase ammonia measurements from the 2002 Atlanta Aerosol Nucleation and Real‐Time Characterization Experiment (ANARChE)

Analysis of urban gas phase ammonia measurements from the 2002 Atlanta Aerosol Nucleation and Real‐Time Characterization Experiment (ANARChE)

Global observations of HNO3 from the High Resolution Dynamics Limb Sounder (HIRDLS): First results

The observation of nitric acid-containing particles in the tropical lower stratosphere

Contact Info

Product

Resources

About

Global observations of HNO₃ from the High Resolution Dynamics Limb Sounder (HIRDLS): First results