A population based case-control study was performed in Cracow, Poland, to determine the effect of occupational air pollutants on various histological types of lung cancer. Male cases and controls were identified from the Cracow Death Register. Information was obtained by mailed questionnaire from next of kin on smoking, occupational branch, occupational exposures, and other pertinent variables....

The interaction of N2O5 with mineral dust: aerosol flow tube and Knudsen reactor studies C. Wagner, F. Hanisch, N. Holmes, H. de Coninck, G. Schuster, and J. N. Crowley Max-Planck-Institut für Chemie, Mainz, Germany now at: Bayerisches Staatsministerium für Umwelt, Gesundheit und Verbraucherschutz, Rosenkavalierplatz 2, 81925 München, Germany now at: International Laboratory for Air Quality and...

[1] Mineral aerosol impacts on climate through radiative forcing by natural dust sources are examined in the current, last glacial maximum, pre-industrial and doubled-carbon dioxide climate. Modeled globally averaged dust loadings change by +88%, +31% and 60% in the last glacial maximum, pre-industrial and future climates, respectively, relative to the current climate. Model results show global...

West African dust aerosol plumes are the most wide spread, persistent and dense [31]. The processes which are responsible for the dust uplift are highly variable in time and space with an annual peak during summer [10, 31]. Mineral dust particles affect the atmospheric radiation budget directly (e.g. [14, 42]) and indirectly (e.g. [16]). The indirect aerosol affect and the scattering of solar r...

Introduction Conclusions References

Introduction Conclusions References

[1] The dependency of nonsphericity on gravitational settling of mineral dust particles is parameterized for prolate ellipsoids and Reynolds number lower than 2. The settling speed is numerically solved from the momentum equation as a function of particle diameter and aspect ratio. The reduction of settling speed due to nonsphericity is included in the Global Ozone Chemistry Aerosol Radiation a...

OBJECTIVES Determine whether surface dust grab samples taken from a large military base in Iraq are toxic and respirable. METHODS X-ray diffraction for mineral content, x-ray fluorescence for elemental content, in vivo mouse dust challenges for assessment of histological changes, bronchoalveolar lavage for cytokines, polarizing light microscopy for crystals in lung tissue, and Fluorescence Ac...

In this work we present a method for the direct determination of contaminant fallout rates on material surfaces from exposure to dust. Naturally occurring radionuclides 40K, 232Th, 238U and stable Pb were investigated. Until now, background contributions dust particulate have largely been estimated models assumed composition. Our utilizes variety low collection media in locations interest, foll...