Rate constants for reaction of hydroxyl radicals with several drinking water contaminants
Haag, WR; Yao, CCD
HERO ID
658815
Reference Type
Journal Article
Year
1992
Language
English
| HERO ID | 658815 |
|---|---|
| In Press | No |
| Year | 1992 |
| Title | Rate constants for reaction of hydroxyl radicals with several drinking water contaminants |
| Authors | Haag, WR; Yao, CCD |
| Journal | Environmental Science & Technology |
| Volume | 26 |
| Issue | 5 |
| Page Numbers | 1005-1013 |
| Abstract | Rate constants for reactions of the hydroxyl radical with 25 potential organic drinking water contaminants, including solvents, haloalkanes, esters, aromatics, and pesticides for example, aldicarb, atrazine, 1,2-dibromo-3-chloropropane, endrin, glyphosate, haloforms, lindane, picloram, etc.), have been measured in water using relative rate methods. A variety of HO.-generating techniques were used, including ozone decomposition, Fenton's reaction, and a convenient new method employing photo-Fenton's s chemistry. In addition, rate constants for 19 other compounds were estimated using structure-activity relationships. The present results are consistent with previous work that demonstrated that HO. is a relatively nonselective radical toward C-H bonds, but is least reactive with aliphatic polyhalogenated compounds. Olefins and aromatics all react at nearly diffusion-controlled rates in water, unlike the case in the gas phase where these compounds react more selectively. The rate constants are useful in estimating HO.-induced oxidation rates of organic compounds in a variety of aqueous systems including atmospheric water droplets, sunlit surface waters, supercritical and near-critical water reactors, and room temperature radical oxidation processes. |
| Doi | 10.1021/es00029a021 |
| Wosid | WOS:A1992HR62300031 |
| Url | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0026645047&doi=10.1021%2fes00029a021&partnerID=40&md5=ff93a810f139f94b7a6872866178d8ef |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | ECOLOGY; FRESH WATER; BIOCHEMISTRY; BIOPHYSICS/METHODS; BIOPHYSICS; MACROMOLECULAR SYSTEMS; MOLECULAR BIOLOGY; ENVIRONMENTAL POLLUTANTS/POISONING; OCCUPATIONAL DISEASES; AIR POLLUTION; SOIL POLLUTANTS; WATER POLLUTION; HERBICIDES; PEST CONTROL; PESTICIDES; Biochemical Studies-General; Biophysics-General Biophysical Techniques; Biophysics-Molecular Properties and Macromolecules; Toxicology-Environmental and Industrial Toxicology; Public Health: Environmental Health-Air; 74472-36-9; 35065-27-1; 23135-22-0; 15972-60-8; 12789-03-6; 8001-35-2; 3352-57-6; 2764-72-9; 1918-02-1; 1912-24-9; 1746-01-6; 1563-66-2; 1071-83-6; 626-86-8; 541-73-1; 540-51-2; 145-73-3; 131-11-3; 122-34-9; 120-82-1; 116-06-3; 106-89-8; 106-46-7; 96-12-8; 95-50-1; 94-75-7; 93-72-1; 88-85-7; 87-86-5; 87-61-6; 84-66-2; 79-00-5; 78-87-5; 77-47-4; 75-99-0; 75-25-2; 75-09-2; 74-95-3; 72-43-5; 72-20-8; 67-66-3; 58-89-9; 57-15-8; 56-23-5 |
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