Concentrations and deposition fluxes of polynuclear aromatic hydrocarbons and heavy metals in the dated sediments of a rural English lake
Sanders, G; Jones, KC; Hamilton-Taylor, J; Doerr, H
| HERO ID | 1483074 |
|---|---|
| In Press | No |
| Year | 1993 |
| Title | Concentrations and deposition fluxes of polynuclear aromatic hydrocarbons and heavy metals in the dated sediments of a rural English lake |
| Authors | Sanders, G; Jones, KC; Hamilton-Taylor, J; Doerr, H |
| Journal | Environmental Toxicology and Chemistry |
| Volume | 12 |
| Issue | 9 |
| Page Numbers | 1567-1581 |
| Abstract | BIOSIS COPYRIGHT: BIOL ABS. Deposition fluxes have been estimated from concentrations of 12 polynuclear aromatic hydrocarbons (PAHs) and six heavy metals measured in sediment cores from Esthwaite Water, a rural English take. Atmospheric deposition is a major source of PAHs and heavy metals (Cd, Cu, Pb, and Zn) to the lake, so trends in the core may indicate the long-term record of changes in the atmospheric loading of these pollutants. The cores were dated radiometrically and pollutant trends studied since about 1820. PAH fluxes began to increase from stable background levels around the turn of the century (4.1 mug SIGMAPAH per gram dry weight, 287 ng SIGMAPAH per centimeter squared per year), rising to maximum inputs between 1950 and 1970 (42.0 mug/g, 2,954 ng/cm2 per year). The deposition flux of PAHs has decreased steadily since then and is now less than half the maximum (18.0 mug/g, 1,238 ng/cm2 per year). In recent sediments (1900-1970), the relative proportions of individual PAHs making up t |
| Is Certified Translation | No |
| Dupe Override | 1483074 |
| Is Public | Yes |
| Language Text | eng |
| Keyword | <?xml version="1.0" encoding="UTF-8"?><kw>Ecology</kw>; <?xml version="1.0" encoding="UTF-8"?><kw>Biochemical Methods-General</kw>; <?xml version="1.0" encoding="UTF-8"?><kw>Biochemical Methods-Minerals</kw>; <?xml version="1.0" encoding="UTF-8"?><kw>Toxicology-Environmental and Industrial Toxicology</kw>; <?xml version="1.0" encoding="UTF-8"?><kw>Public Health: Environmental Health-Air</kw> |