Simultaneous Determination of Particulate and Molecular Lead in the Atmosphere

Jw, Robinson; Dk, Wolcott

doi:10.1080/00139307409437374

Cited by 11 publications

(7 citation statements)

References 7 publications

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“…As mentioned before, all the adsorbers, that is, bubblers [9], special filter papers [11], Chinese "specially treated" foam [10], and charcoal [7,12,13], do provide extra surface compared to air molecules, which are a thousand times thinner (less dense) and have smaller adhesive forces than the condensed phases. It is conjectured that the bubbles, charcoal, etc., with their high specific surface, become a sink for our particles so that relatively large quantities can be accumulated and eventually measured in proper instruments.…”

Section: Discussionmentioning

confidence: 99%

“…Probably the best documentation of aerosol anomalies has been reported by Robinson and Wolcott [12], and especially by Skogerboe et al [13]. The latter paper is aptly named "Evaluation of filter inefficiencies (emphasis by us) for particulate collection under low loading conditions".…”

Section: Aerosol Anomaliesmentioning

confidence: 93%

“…found, at low loadings, which means at the beginning of their 72 h sampling periods, were as high as 90%. Not surprisingly, their work, as well as that of Robinson and Wolcott [12], was declared invalid because the conventional measurements always showed these filters to be at least 99.97% efficient; and that their results were due to "contamination of the charcoal traps" [15]. Skogerboe at al.…”

Section: Aerosol Anomaliesmentioning

confidence: 97%

“…Skogerboe et al's experiments are more comprehensive than ours because they used both charcoal traps and bubblers simultaneously. Note there is a difference between the conventional aerosol measurements and the surface adsorbtion in charcoal traps or scrubbers [12,13].…”

Section: Aerosol Anomaliesmentioning

confidence: 99%

“…There are several kinds of adsorbers: bubblers filled with 0.1 to 1.0 M HNO 3 [9], the Chinese "special adsorber" [6,10], polypropylene filters mounted on a glass base [5,11], and charcoal, either in canisters [7], in a graphite furnace [12], or both bubblers and charcoal traps [13]. In all cases except the last two (which will be discussed in the next section), the field measurements are done by deploying the adsorbers along "line traverses" crossing the terrain of interest.…”

Section: Geochemistry Anomaliesmentioning

confidence: 99%

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Localization of a bound particle outside the potential well

Holub

Smrz²

2002

Can. J. Phys.

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We describe a simple effect predicted by standard quantum mechanics concerning a particle bound in a potential well brought to the zero-energy state by deformation of the well. When the effect takes place within a crack with impermeable walls the probability of localization of the particle reaches its maximum near the end of the crack. The wave function describing the bound particle may thus decohere far from the potential well. There are numerous instances of experimental data, gathered mostly by geochemists and other scientists over the last several decades, that are anomalous and defy all attempts to explain them by means of classical chemistry and physics. The common attribute of these data is a strange transport of particles over large distances that may be caused by the quantum effect described in the first part of the paper. The motivation for writing this paper is our hope to stimulate interest and critical testing of such an hypothesis. PACS Nos.: 03.65, 82.90, 91.90 Résumé : Nous décrivons un effet simple prévu par la mécanique quantique standard impliquant une particule liée dans un puits de potentiel et amenée à l'état d'énergie nulle par une déformation du puits. Lorsque cet effet se produit dans une fente avec des murs imperméables, la probabilité de localization de la particule atteint son maximum près du bord de la fente. La fonction d'onde décrivant la particule liée peut alors perdre sa cohérence à l'extérieur du puits. Il y a une foule d'exemples expérimentaux, recueillis surtout par des géochimistes et d'autres scientifiques depuis des décennies, qui sont anomaux et défient toutes les tentatives d'explication via les théories physiques et chimiques classiques. Le point commun de ces observations est un transport étrange de particules sur de grandes distances qui pourrait être causés par l'effet quantique décrit dans la première partie du papier. En écrivant ce papier, nous espérons susciter de l'intérêt et amener des chercheurs à tester cette hypothèse de façon critique.[Traduit par la Rédaction]

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