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Tytuł pozycji:

Geographic variation of Sr and S isotope ratios in bottled waters in Japan and sources of Sr and S.

Tytuł:
Geographic variation of Sr and S isotope ratios in bottled waters in Japan and sources of Sr and S.
Autorzy:
Nakano T; Research Institute for Humanity and Nature, 457-4, Kamigamo-Motoyama, Kita-ku, Kyoto 603-8047, Japan. Electronic address: .
Yamashita K; Graduate School of Natural Science and Technology, Okayama University, Tsushimanaka 3-1-1, Kita-ku, Okayama 700-8530, Japan. Electronic address: .
Ando A; Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, MRC 121, Washington, D.C. 20013-7012, USA; BugWare, Inc., 1615 Village Square Blvd., Suite 8, Tallahassee, FL 32309, USA.
Kusaka S; School of Marine Science and Technology, Tokai University, 3-20-1, Orido, Shimizu-ku, Shizuoka 424-8610, Japan. Electronic address: .
Saitoh Y; School of Creative Science and Technology, Waseda University, Shinjuku, Tokyo, 3-4-1, Ookubo, Shinjuku-ku, Tokyo 169-8555, Japan. Electronic address: .
Źródło:
The Science of the total environment [Sci Total Environ] 2020 Feb 20; Vol. 704, pp. 135449. Date of Electronic Publication: 2019 Nov 23.
Typ publikacji:
Journal Article
Język:
English
Imprint Name(s):
Original Publication: Amsterdam, Elsevier.
MeSH Terms:
Environmental Monitoring*
Drinking Water/*analysis
Strontium Isotopes/*analysis
Sulfur Isotopes/*analysis
Water Pollutants, Chemical/*analysis
Japan
Contributed Indexing:
Keywords: Chemical weathering; Groundwater; Isotope map; Provenance; Rainwater input; Strontium and sulfur isotopes
Substance Nomenclature:
0 (Drinking Water)
0 (Strontium Isotopes)
0 (Sulfur Isotopes)
0 (Water Pollutants, Chemical)
Entry Date(s):
Date Created: 20191211 Date Completed: 20200205 Latest Revision: 20200205
Update Code:
20240105
DOI:
10.1016/j.scitotenv.2019.135449
PMID:
31818581
Czasopismo naukowe
The geographic distribution of the stable isotope ratio of Sr ( 87 Sr/ 86 Sr) is useful for identifying the provenance of drinking water, organisms, and agricultural products. To explore how environmental factors influence this ratio, we determined the 87 Sr/ 86 Sr, sulfur isotope ratio (δ 34 S), and elemental composition of 208 commercially available bottled waters in Japan, and compared them with the 87 Sr/ 86 Sr values of groundwater, rainwater, rocks, and vegetables from similar localities. We classified the bottled waters into seven categories based on the geology of their source aquifers. The 87 Sr/ 86 Sr and concentrations of several elements (Ca, K, Si, Rb, and Ba) of the bottled waters differed with the aquifer rock type and were well correlated with the 87 Sr/ 86 Sr of reported spring waters, indicating that bottled water, like other groundwater, reflects the lithology and chemistry of its aquifer. The 87 Sr/ 86 Sr of bottled water, taken as a proxy for groundwater, showed regional variations consistent with those of rocks and vegetables, demonstrating that an 87 Sr/ 86 Sr map of water and agricultural products has value for determining the production areas of these substances. However, the value and range of 87 Sr/ 86 Sr differed among these three materials, and the degree of the difference between groundwater and rock depended on the rock type. An analysis of geochemical data from rocks and rainwater suggests that groundwater contains Sr and additional S derived from atmospheric sources such as rainwater and sea salt aerosols. The atmospheric contribution of Sr to groundwater is greatest in areas of siliceous sedimentary rocks with low Sr concentrations and high resistance to weathering. A weak correlation of δ 34 S of bottled waters with 87 Sr/ 86 Sr indicates the usefulness of maps of combined Sr and S isotope ratios for groundwater provenance. This study shows that for accurate provenance determinations of groundwater, organisms, and agricultural products, it is essential to better quantify the contributions of Sr and S from the atmosphere as well as from rocks and human activities.
(Copyright © 2019 Elsevier B.V. All rights reserved.)

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