isotopic composition of anthropogenic boron and its potential impact on the environment

The present study investigates the isotopic composition of anthropogenic boron (B) and its potential affects on the environment. The isotopic ratios of B in synthetic products from the main ores in the world have been measured by negative thermal ionization mass spectrometry. The data show that the...

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Bibliographic Details
Published in:Biological trace element research 1998, Vol.66 (1/3), p.145-151
Main Author: Vengosh, A
Format: Article
Language:English
Subjects:
Anthropogenic factors
Biological Evolution
Boron
Boron - adverse effects
Boron - chemistry
Contaminants
Contamination
Detergents
Domestic wastewater
Environmental impact
Environmental Pollution
Geological Phenomena
Geology
groundwater contamination
Groundwater pollution
Ionization
Isotopes
Manufacturing industry
Mass Spectrometry
Minerals
Sewage treatment
Synthetic products
Wastewater treatment
Water Pollution, Chemical
Water treatment
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Summary:The present study investigates the isotopic composition of anthropogenic boron (B) and its potential affects on the environment. The isotopic ratios of B in synthetic products from the main ores in the world have been measured by negative thermal ionization mass spectrometry. The data show that the isotopic compositions of Na-borate products and washing powders overlap with those of natural Na-borate minerals. In contrast, the 11B/10B ratios of synthetic Ca-borate and Na/Ca borate products are significantly lower (by 15 permil) and overlap with those of the natural Ca-borate minerals. Consequently, the original isotopic signature of natural borate minerals is not modified during the manufacturing process of synthetic products. The B isotopic composition of domestic wastewater from Israel and Riverside, California suggests that B in sewage is derived from Na-borate components used in detergents. Since B, like other inorganic ions, is not removed during conventional sewage treatment, it accumulates in domestic wastewater. Although the B concentration in pristine groundwaters is generally low (
ISSN:0163-4984
1559-0720
DOI:10.1007/bf02783134