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Elemental and organic carbon particle concentrations: A long-term perspective
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In this paper, the long-term history of organic and elemental carbon particle concentrations at Downtown Los Angeles was studied, showing that organic and organic carbon concentrations both peak during winter months, a behavior characteristic of primary traffic-derived pollutants like CO and lead.About:
This article is published in Science of The Total Environment.The article was published on 1984-07-01. It has received 52 citations till now. The article focuses on the topics: Carbon & Total organic carbon.read more
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Elemental Carbon-Based Method for Monitoring Occupational Exposures to Particulate Diesel Exhaust
M. E. Birch,R. A. Cary +1 more
TL;DR: In this article, a thermal-optical technique for analysis of the carbonaceous fraction of particulate diesel exhaust is reported, and the speciation of organic and elemental carbon is accomplished through temperature and atmosphere control, and by an optical feature that corrects for pyrolytically generated carbon.
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A global three‐dimensional model study of carbonaceous aerosols
C. Liousse,C. Liousse,Joyce E. Penner,Catherine C. Chuang,John J. Walton,H. Eddleman,Hélène Cachier +6 more
TL;DR: In this paper, the authors developed detailed emission inventories for the amount of both black and organic carbon particles from biomass burning sources (wood fuel, charcoal burning, dung, charcoal production, agricultural, savanna and forest fires).
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Large contribution of organic aerosols to cloud-condensation-nuclei concentrations
T. Novakov,Joyce E. Penner +1 more
TL;DR: In this paper, the relative contributions of sulphate and organic aerosols to cloud condensation nuclei (CCN) concentrations at a marine site known to be influenced by anthropogenic emissions were investigated.
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Construction of a 1° × 1° fossil fuel emission data set for carbonaceous aerosol and implementation and radiative impact in the ECHAM4 model
TL;DR: In this paper, emissions of carbonaceous aerosol from fossil fuel usage have been calculated with a resolution of 1° × 1° and the results are compared to measurements in regions influenced by anthropogenic fossil fuel emissions.
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Organics alter hygroscopic behavior of atmospheric particles
TL;DR: In this paper, the authors analyzed concurrent observations of particle chemical composition and water content from a continental nonurban (Grand Canyon) and an urban (Los Angeles) location to determine whether the water content of atmospheric particles is influenced by the presence of organics.
References
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DETERMINATION OF AMMONIA IN NATURAL WATERS BY THE PHENOLHYPOCHLORITE METHOD 1 1 This research was fully supported by U.S. Atomic Energy Commission Contract No. ATS (11‐1) GEN 10, P.A. 20.
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Absorption coefficient of atmospheric aerosol: a method for measurement.
TL;DR: A method for measurement of b(abs) uses a piece of opal glass to integrate light scattered by particles collected on Nuclepore filters and shows it is accurate to well within an order of magnitude for particles of radius larger than 0.1 microm.
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Visibility-reducing species in the denver “brown cloud”—I. Relationships between extinction and chemical composition
TL;DR: In this paper, the extinction coefficient due to particle absorption and particle scattering were measured with integrating nephelometers operating at both ambient conditions and in a heated mode during 41 consecutive days during November and December, 1978 in Denver, Colorado.
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A cyclone for size-selective sampling of ambient air
Walter John,Georg Reischl +1 more
TL;DR: A cyclone with a 47 mm after-filter has been developed for ambient air size-selective monitoring as discussed by the authors, which has been extensively evaluated with laboratory-generated aerosol and has shown that the cyclone operates in a single flow regime with a vortex in the outlet flow.