This commentary article highlights the important role of black carbon produced from biomass burning in the global carbon cycle. Consideration of the fundamental chemistry and thermokinetics of cellulose thermal decomposition suggests that suppression of biomass burning or biasing burning practices to produce soot-free flames must inevitably transfer more carbon to the atmosphere. A simple order...

High levels of exposure to carbon black have been linked with an increased prevalence of chest radiograph abnormalities. However, it is unclear to what extent current levels of exposure in the carbon black manufacturing industry are associated with new cases of and progression in small opacities. Longitudinal analyses were carried out on data from workers in the European carbon black manufactur...

Short lived aerosols and pollutants transported from northern mid-latitudes have amplified the short term warming in the Arctic region. Among those black carbon is recognized as the second most important human emission in regards to climate forcing, behind carbon dioxide, with a total climate forcing of +1.1 Wm−2. Studies have suggested that cropland burning may be a large contributor to the bl...

Simulating the global atmospheric black carbon cycle: a revisit to the contribution of aircraft emissions J. Hendricks, B. Kärcher, A. Döpelheuer , J. Feichter, U. Lohmann, and D. Baumgardner DLR-Institut für Physik der Atmosphäre, Oberpfaffenhofen, Germany DLR-Institut für Antriebstechnik, Köln, Germany Now at DLR-Vorstand, Köln, Germany Max-Planck-Institut für Meteorologie, Hamburg, Germany D...

During aging processing, black carbon (also called soot) particles may tend to be mixed with other aerosols, and highly influence their radiative forcing. In this study, freshly emitted soot particles were simulated as fractal aggregates composed of small spherical primary monomers. After aging in the atmosphere, soot monomers were coated by a thinly layer of sulfate as thinly coated soot parti...

Black carbon over Mexico: the effect of atmospheric transport on mixing state, mass absorption cross-section, and BC/CO ratios R. Subramanian, G. L. Kok, D. Baumgardner, A. Clarke, Y. Shinozuka, T. L. Campos, C. G. Heizer, and B. B. Stephens Droplet Measurement Technologies, Boulder, CO 80301, USA Universidad Nacional Autónoma de México, Mexico City, Mexico University of Hawai’i, Honolulu, HI 9...

In order to assess the abilities of alveolar macrophages (AMs) to phagocytize adsorbent-adsorbate complexes, rat AMs were incubated in vitro with two carbon blacks that have 15-fold differences in specific surface areas (ASTM classification N339 less than Black Pearls 2000) sorbed with 0.5 and 1.0 monolayer coverages of a polar and semi-polar adsorbate (acrolein and benzofuran, respectively). O...

In this study, we examined the distribution of polycyclic aromatic hydrocarbons (PAHs) in a contaminated coastal area and the characteristics of the natural organic matter in tandem. We present a detailed study of PAH concentration, distribution, and organic matter characteristics of three core samples from Pensacola Bay, Florida. Solid-state 13C Nuclear Magnetic Resonance (NMR), pyrolysis gas ...