| View Larger Image | Laboratory measurement of the dry deposition of sulfur dioxide onto northern Chinese soil samples [An article from: Atmospheric Environment] | Digitalby A. Sorimachi (Author), K. Sakamoto (Author)
| List Price: | $10.95 | | | Available: | Available for download now |
| | Binding: | Digital | | Publisher: | Elsevier | | Publication Date: | April 01, 2007 |
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Product Description
This digital document is a journal article from Atmospheric Environment, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.Description: We investigated soil surface resistance R"c to dry deposition of sulfur dioxide (SO"2) onto different types of soils in laboratory experiments, using samples collected from the arid loess plateau and deserts of northern China. We evaluated the factors that affect R"c, which depends on the physical and chemical interaction between a trace constituent and the deposition surface. We observed that the values of R"c for SO"2 decreased with increase of soil weight and increased with SO"2 concentration, although surface coverage had little effect on R"c. The SO"2 uptake rate by all the northern Chinese soil samples seemed to be, on the whole, dependent on relative humidity (RH). In all of the northern Chinese soil samples, R"c was in the range 0.028-0.65smm^-^1, and was exponentially related to the effective surface area of each soil sample, regardless of RH. Wet chemical analysis of sulfur deposited onto the soil samples showed that oxidation ratio of sulfur(IV) to sulfur(VI) was related to RH, which might be related to complex interactions among the amount of water on the soil sample, the pH, and the metallic ions in the liquid phase. |
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