PM1 Chemical Characterization during the ACU15 Campaign, South of Mexico City
Abstract
:1. Introduction
2. Experiments
2.1. ACU15 Campaign
2.2. Aerosol Chemical Speciation Monitor (ACSM)
2.3. Other Co-Located Measurements
3. Results and Discussion
3.1. PM Concentrations
3.2. NR-PM1 Chemical Composition
3.3. NR-PM1 Acidity
3.4. Organic Fraction
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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ACU15 (CCA) | LAA [19] | MILAGRO (T0) [13] | MCMA03 (CEN) [18] | ||||||
---|---|---|---|---|---|---|---|---|---|
21 January–23 March 2015 | 13 November 2013–30 April 2014 | 1 March–4 April 2006 | 31 March–4 May 2003 | ||||||
(µg m−3) | % | (µg m−3) | % | (µg m−3) | % | (µg m−3) | % | ||
NR-PM1 | organics | 8.1 | 53.2 | 12.0 | 59.3 | 17.3 | 64.6 | 21.6 | 69.9 |
sulfate | 4.3 | 24.8 | 3.2 | 16.1 | 3.6 | 13.4 | 3.1 | 10.1 | |
nitrate | 2.7 | 12.2 | 2.9 | 14.4 | 3.5 | 13.1 | 3.7 | 11.9 | |
ammonium | 1.8 | 9.5 | 1.8 | 9.0 | 2.0 | 7.7 | 2.2 | 7.0 | |
chloride | 0.05 | 0.3 | 0.2 | 1.2 | 0.4 | 1.5 | 0.3 | 1.0 | |
ACSM total | 16.9 | 20.2 | 26.8 | 30.9 | |||||
BC (PM2.5) | 2.1a | 3.03 a | 4.2 *,c | 3.4 *,c | |||||
soil (PM2.5) | 1.7 § | 2.1 | |||||||
metals (PM2.5) | 1.0 | ||||||||
PM2.5 | 17.5 b, 16.1 c | 37.0 b | 40.0 d [33] | 35.7 b, 40.0 e | |||||
PM1 | 27.8 b | 33.0 d [33] |
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Salcedo, D.; Alvarez-Ospina, H.; Peralta, O.; Castro, T. PM1 Chemical Characterization during the ACU15 Campaign, South of Mexico City. Atmosphere 2018, 9, 232. https://doi.org/10.3390/atmos9060232
Salcedo D, Alvarez-Ospina H, Peralta O, Castro T. PM1 Chemical Characterization during the ACU15 Campaign, South of Mexico City. Atmosphere. 2018; 9(6):232. https://doi.org/10.3390/atmos9060232
Chicago/Turabian StyleSalcedo, Dara, Harry Alvarez-Ospina, Oscar Peralta, and Telma Castro. 2018. "PM1 Chemical Characterization during the ACU15 Campaign, South of Mexico City" Atmosphere 9, no. 6: 232. https://doi.org/10.3390/atmos9060232
APA StyleSalcedo, D., Alvarez-Ospina, H., Peralta, O., & Castro, T. (2018). PM1 Chemical Characterization during the ACU15 Campaign, South of Mexico City. Atmosphere, 9(6), 232. https://doi.org/10.3390/atmos9060232