| Autor: | Noriyuki Momoshima, Nobuaki Matsuoka, Shinji Tawaki, Hidehisa Kawamura |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Pollution
Chemical transformation Environmental Engineering Ecological Modeling media_common.quotation_subject chemistry.chemical_element Sulfur cycle Fractionation Particulates Sulfur chemistry.chemical_compound δ34S chemistry Environmental chemistry Environmental Chemistry Sulfate Water Science and Technology media_common |
| Zdroj: | Water, Air, and Soil Pollution. 130:1775-1780 |
| ISSN: | 0049-6979 |
| Popis: | Atmospheric sulfur oxides, participate matter and deposits (wet and dry deposits) were collected from July 1998 to June 1999 at Kyushu Island, Japan. The isotopic composition of sulfur (δ34S) was measured to identify the source of sulfur in the samples. The monthly δ34S values were always low in the order of the sulfur oxides, sulfate in particulate matter and deposits. The δ34S values of the sulfur oxides ranged from-2.7 % to-0.4 % and were close to those of fossil fuels used in Japan. The δ34S values of sulfate in the particulate matter and deposits correlated with seasalt contribution, so that the δ34Snss value was calculated for non-seasalt sulfate. The δ34Snss values of sulfate in the particulate matter and deposits trended higher in winter than summer, suggesting the possibility of isotopic fractionation during chemical transformation (SO2 to) and of contribution of sulfate derived from sulfur sources with higher δ34S values. |
| Databáze: | OpenAIRE |
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