Impact of humic constituents on microbial dechlorination of polychlorinated dioxins
Barkovskii, AL; Adriaens, P
| HERO ID | 2740483 |
|---|---|
| In Press | No |
| Year | 1998 |
| Title | Impact of humic constituents on microbial dechlorination of polychlorinated dioxins |
| Authors | Barkovskii, AL; Adriaens, P |
| Journal | Environmental Toxicology and Chemistry |
| Volume | 17 |
| Issue | 6 |
| Page Numbers | 1013-1020 |
| Abstract | BIOSIS COPYRIGHT: BIOL ABS. We recently reported on the ability of a microbial consortium eluted from dioxin-contaminated Passaic River sediments to dechlorinate polychlorinated dibenzo-p-dioxins (PCDDs) through peridechlorination of 2,3,7,8-substituted hepta- to penta-CDDs resulting in the transient production of 2,3,7,8-tetra-CDD and through perilateral dechlorination pathway of non-2,3,7,8-substituted congeners. The dechlorination of PCDDs under combined reductive activities of the same microbial community and model humic constituents (MHCs) (resorcinol, 3,4-dihydroxybenzoic acid (3,4-DHBA), and catechol) was investigated. Model humic constituents alone caused reductive dechlorination of PCDDs, resulting in the production of hepta-, hexa-, and tetra-CDD congeners. Whereas abiotic MHC-stimulated dechlorination ceased at the tetra-CDD group of congeners, microbial activity caused further dechlorination to tri-, di-, and mono-CDDs. Combined with the microbial community, MHCs effected the appearanc |
| Doi | 10.1002/etc.5620170606 |
| Wosid | WOS:000073692600006 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | microbial dechlorination; polychlorinated dioxins; humic constituents |