Health & Environmental Research Online (HERO)


Print Feedback Export to File
48185 
Journal Article 
Observations of near-zero ozone concentrations over the convective Pacific: Effects on air chemistry 
Kley, D; Crutzen, PJ; Smit, HGJ; Vomel, H; Oltmans, SJ; Grassl, H; Ramanathan, V 
1996 
1 
Science
ISSN: 0036-8075
EISSN: 1095-9203 
274 
5285 
230-233 
WOS:A1996VM67100038 
A series of measurements over the equatorial Pacific in March 1993 showed thai the volume mixing ratios of ozone were frequently well below 10 nanomoles per mole both in the marine boundary layer (MEL) and between 10 kilometers and the tropopause. These latter unexpected results emphasize the enormous variability of tropical tropospheric ozone and hydroxyl concentrations, which determine the oxidizing efficiency of the trophosphere. They also imply a convective short circuit of marine gaseous emissions, such as dimethyl sulfide, between the MBL and the uppermost troposphere, leading, for instance, to sulfate particle formation. 
NAAQS
• ISA-NOx (2016)
     2008 Final