Oxygen isotopy of atmospheric sulfates

1981 ◽  
Vol 15 (7) ◽  
pp. 804-808 ◽  
Author(s):  
Ben D. Holt ◽  
Paul T. Cunningham ◽  
Romesh. Kumar
Keyword(s):  
Atmospheric Sulfates

scholarly journals Oxygen and sulfur mass-independent isotopic signatures in black crusts: the complementary negative Δ<sup>33</sup>S reservoir of sulfate aerosols?

2020 ◽  
Vol 20 (7) ◽  
pp. 4255-4273 ◽  
Author(s):  
Isabelle Genot ◽  
David Au Yang ◽  
Erwan Martin ◽  
Pierre Cartigny ◽  
Erwann Legendre ◽  
...  
Keyword(s):  
Building Stone ◽  
Black Crust ◽  
Sulfur Source ◽  
Building Stones ◽  
Sulfate Aerosols ◽  
Magnetic Isotope Effect ◽  
So2 Oxidation ◽  
Isotopic Signatures ◽  
Black Crusts ◽  
Atmospheric Sulfates

Abstract. To better understand the formation and the oxidation pathways leading to gypsum-forming “black crusts” and investigate their bearing on the whole atmospheric SO2 cycle, we measured the oxygen (δ17O, δ18O, and Δ17O) and sulfur (δ33S, δ34S, δ36S, Δ33S, and Δ36S) isotopic compositions of black crust sulfates sampled on carbonate building stones along a NW–SE cross section in the Parisian basin. The δ18O and δ34S values, ranging between 7.5 ‰ and 16.7±0.5 ‰ (n=27, 2σ) and between −2.66 ‰ and 13.99±0.20 ‰, respectively, show anthropogenic SO2 as the main sulfur source (from ∼2 % to 81 %, average ∼30 %) with host-rock sulfates making the complement. This is supported by Δ17O values (up to 2.6 ‰, on average ∼0.86 ‰), requiring > 60 % of atmospheric sulfates in black crusts. Negative Δ33S and Δ36S values between −0.34 ‰ and 0.00±0.01 ‰ and between −0.76 ‰ and -0.22±0.20 ‰, respectively, were measured in black crust sulfates, which is typical of a magnetic isotope effect that would occur during the SO2 oxidation on the building stone, leading to 33S depletion in black crust sulfates and subsequent 33S enrichment in residual SO2. Except for a few samples, sulfate aerosols mostly have Δ33S values > 0 ‰, and no processes can yet explain this enrichment, resulting in an inconsistent S budget: black crust sulfates could well represent the complementary negative Δ33S reservoir of the sulfate aerosols, thus solving the atmospheric SO2 budget.

scholarly journals The relative importance of atmospheric sulfates and nitrates in visibility reduction

1981 ◽  
Vol 15 (12) ◽  
pp. 2463-2471 ◽  
Author(s):  
I.N. Tang ◽  
W.T. Wong ◽  
H.R. Munkelwitz
Keyword(s):  
Relative Importance ◽  
Atmospheric Sulfates

scholarly journals Potential ambient standards for atmospheric sulfates

1979 ◽  
Author(s):  
M. Rowe ◽  
S. Morris ◽  
L. Hamilton
Keyword(s):  
Atmospheric Sulfates

Sampling and analysis of atmospheric sulfates and related species

1978 ◽  
Vol 12 (1-3) ◽  
pp. 55-68 ◽  
Author(s):  
Robert K. Stevens ◽  
Thoms G. Dzubay ◽  
George Russwurm ◽  
Dwight Rickel
Keyword(s):  
Related Species ◽  
Atmospheric Sulfates

Characterization and Classification of Atmospheric Sulfates

1979 ◽  
Vol 29 (8) ◽  
pp. 838-840 ◽  
Author(s):  
Peter D.E. Biggins ◽  
Roy M. Harrison
Keyword(s):  
Atmospheric Sulfates
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