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  • 1
    Electronic Resource
    Electronic Resource
    Global emissions inventories of acid-related compounds (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 25-36 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Computer assessments of the atmospheric chemistry and air quality of the past, present, and future rely in part on inventories of emissions constructed on appropriate spatial and temporal scales and with appropriate chemical species. Accurate inventories are also of substantial utility to field measurement scientists and the regulatory and policy communities. The production of global emissions inventories is the task of the Global Emissions Inventory Activity (GEIA) of the International Global Atmospheric Chemistry Project (IGAC). This paper presents a summary of recent emissions inventories from GEIA and other programs for reference year 1985, with special attention directed to emissions of the acid-related compounds CO2 (≈6.2 Pg C yr−1 anthropogenic), SOx (≈65 Tg S yr−1 anthropogenic and 15 Tg S yr−1 natural), NOx (≈21 Tg N yr−1 anthropogenic and 15–20 Tg N yr−1 natural), HCl (≈55 Tg Cl yr−1 total), and NH3 (≈45 Tg N yr−1 total). The global acid-equivalent flux of about 4.2 Teq H+yr−1 is about equally attributable to SOx and NOx emissions. For some of the acid-related species, historic inventories are available for a century or more; all show dramatic emissions increases over that period. IPCC scenario IS92a is used here as the basis for constructing global acid-related emissions estimates for selected years to 2100; among the results are that acid equivalent emissions are expected to more than double in the coming century.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00483686
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Covariations in oceanic dimethyl sulfide, its oxidation products and rain acidity at Amsterdam Island in the Southern Indian Ocean (1992)
    Springer
    Journal of atmospheric chemistry 15 (1992), S. 39-53 
    Details
    ISSN: 1573-0662
    Keywords: Oceanic dimethyl sulfide ; atmospheric dimethyl sulfide ; sulfur dioxide ; wet deposition ; non-sea-salt sulfate ; methanesulfonic acid ; rain acidity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Geosciences
    Notes: Abstract Simultaneous measurements of rain acidity and dimethyl sulfide (DMS) at the ocean surface and in the atmosphere were performed at Amsterdam Island over a 4 year period. During the last 2 years, measurements of sulfur dioxide (SO2) in the atmosphere and of methane sulfonic acid (MSA) and non-sea-salt-sulfate (nss-SO4 2-) in rainwater were also performed. Covariations are observed between the oceanic and atmospheric DMS concentrations, atmospheric SO2 concentrations, wet deposition of MSA, nss-SO4 2-, and rain acidity. A comparable summer to winter ratio of DMS and SO2 in the atmosphere and MSA in precipitation were also observed. From the chemical composition of precipitation we estimate that DMS oxidation products contribute approximately 40% of the rain acidity. If we consider the acidity in excess, then DMS oxidation products contribute about 55%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00053608
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    Paper (German National Licenses)
    Fulltext
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