Abstract:
:Inspection of the available literature reveals that a detailed investigation of the aqueous organic chemistry of chlorine dioxide and systematic identification of products formed during water disinfection has not been considered. This must be done before an informed assessment can be made of the relative safety of using chlorine dioxide as a disinfectant alternative to chlorine. Although trihalomethanes are generally not formed by the action of chlorine dioxide, the products of chlorine dioxide treatment of organic materials are oxidized species, some of which also contain chlorine. The relative amounts of species types may depend on the amount of chlorine dioxide residual maintained and the concentration and nature of the organic material present in the source water. The trend toward lower concentrations of chlorinated by-products with increasing ClO2 concentration, which was observed with phenols, has not been observed with natural humic materials as measured by the organic halogen parameter. Organic halogen concentrations have been shown to increase with increasing chlorine dioxide dose, but are much lower than those observed when chlorine is applied. Aldehydes have been detected as apparent by-products of chlorine dioxide oxidation reactions in a surface water that is a drinking water source. Some other nonchlorinated products of chlorine dioxide treatment may be quinones and epoxides. The extent of formation of these moieties within the macromolecular humic structure is also still unknown.
journal_name
Environ Health Perspectjournal_title
Environmental health perspectivesauthors
Stevens AAdoi
10.1289/ehp.8246101subject
Has Abstractpub_date
1982-12-01 00:00:00pages
101-10eissn
0091-6765issn
1552-9924journal_volume
46pub_type
杂志文章abstract::The identification of certain organic compounds in drinking water has led water treatment specialists to be increasingly concerned about the eventual risks of such pollutants to the health of consumers. Our experiments focused on the role of ozone and granular activated carbon in removing mutagenic compounds and precu...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8669159
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journal_title:Environmental health perspectives
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pub_type: 杂志文章
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更新日期:2008-06-01 00:00:00
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
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journal_title:Environmental health perspectives
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doi:10.1289/ehp.81385
更新日期:1981-04-01 00:00:00
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更新日期:2006-10-01 00:00:00
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更新日期:2014-05-01 00:00:00
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更新日期:2018-06-27 00:00:00
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更新日期:1994-10-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:1978-10-01 00:00:00
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更新日期:2001-12-01 00:00:00
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更新日期:2004-06-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
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更新日期:1998-02-01 00:00:00
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pub_type: 杂志文章
doi:10.1289/ehp.00108239
更新日期:2000-03-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.824663
更新日期:1982-12-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.78231
更新日期:1978-04-01 00:00:00
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journal_title:Environmental health perspectives
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更新日期:2003-04-01 00:00:00
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更新日期:2009-09-01 00:00:00
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更新日期:2009-04-01 00:00:00
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更新日期:2011-07-01 00:00:00
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更新日期:2017-06-13 00:00:00
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journal_title:Environmental health perspectives
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更新日期:2003-07-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8560321
更新日期:1985-05-01 00:00:00
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journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.782237
更新日期:1978-02-01 00:00:00
abstract::The U.S. Environmental Protection Agency is under a congressional mandate to revise its current standard for arsenic in drinking water. We present a risk assessment for cancers of the bladder, liver, and lung from exposure to arsenic in water, based on data from 42 villages in an arseniasis-endemic region of Taiwan. W...
journal_title:Environmental health perspectives
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更新日期:2000-07-01 00:00:00
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更新日期:2003-03-01 00:00:00
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doi:10.1289/ehp.00108323
更新日期:2000-04-01 00:00:00