Identification of Aerosols

Lodge, James P.

doi:10.1016/s0065-2687(08)60529-4

Cited by 9 publications

(3 citation statements)

References 72 publications

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“…These studies demonstrated that these techniques were only able to identify the relatively pure larger particles (MBsz&ros, 19643), the number concentration of which is practically negligible considering the number of fog and cloud droplets. The so-called single particle methods (Lodge, 1962) are unfortunately not capable of counting the mixed and smaller particles ( r ~0 . 5 p ) .…”

Section: Introductionmentioning

confidence: 99%

“…It is known that Lodge's group in the USA is making great efforts to overcome these difficulties (Lodge & Frank, 1966) but detailed results have not yet been published. Thus it seemed best to make bulk analyses in the different size ranges in spite of the fact that "the particulate status of the col-Tellus XX (1968), 3 lection ceases to have meaning" (Lodge, 1962) in this way.…”

Section: Introductionmentioning

confidence: 99%

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On the size distribution of water soluble particles in the atmosphere

Mészáros

1968

Tellus A: Dynamic Meteorology and Oceanography

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The size distribution of the mass concentration of some water soluble materials was measured by an impactor of three stages and membrane filters. It was found that about the half of the mass of sulfate and ammonium particles is in the range of Aitken nuclei. The size distribution of sulfate particles depends on the relative humidity of the air: more nuclei are in the Aitken size range if the relative humidity is smaller. The size distribution of chloride particles is rather different from that of sulfate and ammonium particles: only a small fraction of the total mass is in the Aitken range. Considering the stoichiometric proportion of the ammonium sulfate, it is an ammonium excess, which is greater in the case of smaller particles. It is not impossible that this ammonium excess is caused by the presence of ammonium hydroxide. It follows from these results that in the Aitken size range there are many sulfate and ammonium particles which may be active cloud nuclei even over the continents.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On the size distribution of water soluble particles in the atmosphere

Mészáros

1968

Tellus A: Dynamic Meteorology and Oceanography

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“…H2SO4 possesses an extremely low vapor pressure and will exist as a liquid in the vacuum necessary for SEM analysis. 39 ' 40 , TEM and SAED analyses were performed which confirmed that the sulfur-rich particles were not crystalline. Further laboratory testing involved exposing the samples to ammonia vapor which caused stable crystals to form.…”

Section: Examples Of Resultsmentioning

confidence: 96%