Iodine oxide homogeneous nucleation: An explanation for coastal new particle production

被引:156
作者
Hoffmann, T
O'Dowd, CD
Seinfeld, JH
机构
[1] Inst Spectrochem & Appl Spect, D-44013 Dortmund, Germany
[2] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland
[3] CALTECH, Pasadena, CA 91125 USA
关键词
D O I
10.1029/2000GL012399
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
A series of laboratory experiments on the chemical composition of aerosol particles formed after photodissociation of CH2I2, a major volatile alkyl halide released from macroalgae, have been performed in a laboratory scale reaction chamber using on-line atmospheric pressure chemical ionization mass spectrometry (APCI/MS). Based on the mass spectrometric results and the molecular properties of iodine oxides, we suggest that the self-nucleation of iodine oxides provides an efficient source of natural condensable material in coastal environments and discuss this concept focusing on OIO as one potential key species for new particle formation. The presented hypothesis not only fits the measured enrichment of iodine species in submicrometer particles, but also can explain the frequently observed nucleation bursts in the coastal boundary layer.
引用
收藏
页码:1949 / 1952
页数:4
相关论文
共 25 条
[1]   Iodine oxide in the marine boundary layer [J].
Alicke, B ;
Hebestreit, K ;
Stutz, J ;
Platt, U .
NATURE, 1999, 397 (6720) :572-573
[2]  
BAILAR JC, 1973, COMPREHENSIVE INORGA, V2
[3]   Short-lived alkyl iodides and bromides at Mace Head, Ireland: Links to biogenic sources and halogen oxide production [J].
Carpenter, LJ ;
Sturges, WT ;
Penkett, SA ;
Liss, PS ;
Alicke, B ;
Hebestreit, K ;
Platt, U .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1999, 104 (D1) :1679-1689
[4]   NIST-JANAF thermochemical tables for the iodine oxides [J].
Chase, MW .
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1996, 25 (05) :1297-1340
[5]   OIO and the atmospheric cycle of iodine [J].
Cox, RA ;
Bloss, WJ ;
Jones, RL ;
Rowley, DM .
GEOPHYSICAL RESEARCH LETTERS, 1999, 26 (13) :1857-1860
[6]   ABSORPTION CROSS-SECTION AND KINETICS OF IO IN THE PHOTOLYSIS OF CH3I IN THE PRESENCE OF OZONE [J].
COX, RA ;
COKER, GB .
JOURNAL OF PHYSICAL CHEMISTRY, 1983, 87 (22) :4478-4484
[7]   Potential impact of iodine on tropospheric levels of ozone and other critical oxidants [J].
Davis, D ;
Crawford, J ;
Liu, S ;
McKeen, S ;
Bandy, A ;
Thornton, D ;
Rowland, F ;
Blake, D .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1996, 101 (D1) :2135-2147
[8]   INFRARED AND RAMAN STUDIES OF CRYSTALLINE I2O5, (IO)2SO4, (IO)2SEO4 AND I2O4 [J].
ELLESTAD, OH ;
WOLDBAEK, T ;
KJEKSHUS, A ;
KLAEBOE, P ;
SELTE, K .
ACTA CHEMICA SCANDINAVICA SERIES A-PHYSICAL AND INORGANIC CHEMISTRY, 1981, 35 (03) :155-164
[9]   THE CRYSTAL-STRUCTURE OF I2O4 AND ITS RELATIONS TO OTHER IODINE-OXYGEN-CONTAINING COMPOUNDS [J].
FJELLVAG, H ;
KJEKSHUS, A .
ACTA CHEMICA SCANDINAVICA, 1994, 48 (10) :815-822
[10]   An analysis of rapid increases in condensation nuclei concentrations at a remote coastal site in western Ireland [J].
Grenfell, JL ;
Harrison, RM ;
Allen, AG ;
Shi, JP ;
Penkett, SA ;
O'Dowd, CD ;
Smith, MH ;
Hill, MK ;
Robertson, L ;
Hewitt, CN ;
Davison, B ;
Lewis, AC ;
Creasey, DJ ;
Heard, DE ;
Hebestreit, K ;
Alicke, B ;
James, J .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1999, 104 (D11) :13771-13780