Production d'aerosols en relation avec la photo-oxydation de l'anhydride sulfureux

Bricard, J.; Cabane, Michel; Madelaine, G.; Vigla, D.

doi:10.1016/0021-8502(71)90036-x

Cited by 6 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The performance of them was stimulated by the methods and results oB Bricard et al [1,2,3]. It taust be emphasized that particle formation by chemical reactions in the atmosphere, especially the photochemical processes in the sunlight, represents an important source of very small particles (Aitgen nuclei, mean diameter of about i0 -a ~m), whieh ean grow by agglomeration.…”

Section: Immissionmentioning

confidence: 99%

See 1 more Smart Citation

Experiments on the formation of particles by chemical reactions in the dark and under influence of light

Rase

Porstendörfer

1975

Radiat Environ Biophys

View full text Add to dashboard Cite

Some experiments concerning the photochemical production of condensation nuclei are described. Preliminary measurements of filtered atomospheric air, initially free of particles yielded high concentrations of particles by reactions in the dark when the air was previously irradiated by sunlight. In further investigations a definite composition of pure gases was used. The formation of nitric acid particles from NO2 in pure nitrogen of different relative humidities in the dark and under influence of light was investigated. No particle formation was found which could be correlated to any production of nitric acid nuclei. Even within a spectral region in which photolysis of NO2 takes place no HNO3-nucleation could be found. The particles detected under certain conditions of irradiation originate from impurities in the walls of the reaction chamber. Particle growth in an irradiated mixture of N2 and NO2 with benzene is demonstrated and the mean radius of particles is calculated from measurement with a diffusion battery.

show abstract

Section: Immissionmentioning

confidence: 99%

“…In this ease reactions of atomic oxygen, mixed oxides of nitrogen and water vapour would generate the nitric acid (Bricard et al [2]). In this ease reactions of atomic oxygen, mixed oxides of nitrogen and water vapour would generate the nitric acid (Bricard et al [2]).…”

Section: Measurements With Known Gasmentioning

confidence: 99%