11/20/13 Atmos. Chem. Lecture 19, 11/20/13: Aerosol chemistry (inorganic) Chemical compositon of fne PM HN03 + NH3 + H20 mixtures H2S04 + NH3 + H20 mixtures H2S04 + HN03 + NH3 + H20 mixtures PSet 4 due Mon Nov 25
Fine partcles can travel deep into the lungs
"Harvard Six Cites Study": fne partcle
loading correlates with increased
mortality; associated with lung cancer
and cardiopulmonary disease
!ncreased rate of mortality
Health efects of partculate mater H
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© American Thoracic Society. All rights reserved. This content
is excluded from our Creative Commons license. For more
information, see http://ocw.mit.edu/help/faq-fair-use/.
D. W. Dockery et al., New Engl. J. Med. 329 1753-1759 (1993)
and F. Laden et al., Am. J. Resp. Crit. Care Med., 173, 667-672 (2006)
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Ammonium nitrate (s): HN03 + NH3
Below the DRH (61.8% at 298K) NH4N03(s) � NH3(g) + HN03(g) © John Wiley and Sons. All rights reserved. This content isexcluded from our Creative
Commons license. For more information, see http://ocw.mit.edu/help/faq-fair-use/.
Stelson and Seinfeld 1982a (Atm. Env. 16:993)
Mozurkewich 1993 (Atm. Env. 27A:261)
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