|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 3 van 7 gevonden artikelen
| Titel: |
Comparative studies of the fate of atrazine-14C and pentachlorophenol-14C in various laboratory and outdoor soil-plant systems |
| Auteur: |
Scheunert, I. Qiao, Zhang Korte, F. |
| Verschenen in: |
Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes |
| Paginering: | Jaargang 21 (1986) nr. 6 pagina's 457-485 |
| Jaar: |
1986 |
| Inhoud: |
Mass balance and fate of atrazine- 14C and pentachlorophenol- 14C (PCP- 14C) were studied in short-term tests in a closed aerated laboratory soil-plant system, using two concentrations in soil and two plant species, as well as under outdoor conditions for one vegetation period. In the laboratory, for both pesticides bioaccu-mulation factors of radiocarbon taken up by the roots into plants were low. They were higher for lower (1 ppm) than for higher soil concentrations (6 ppm for atra-zine, 4 ppm for pentachlorophenol) and varied with the plant species. Mineralization to 14CO2 in soil was negatively related to soil concentration only for PCP- 14C. Conversion rates in soil including the formation of soil-bound residues were higher for the lower concentrations of both pesticides than for the higher ones; conversion rates in plants were species-dependent. In 14 terms of CO2 formation and of conversion rates, PCP was less persistent in soil than was atrazine. For both pesticides, laboratory data on conversion and mineralization gave a rough prediction of their persistence in soil under long-term outdoor conditions, whereas bio-accumulation factors in plants under long-term outdoor conditions could not be predicted by short-term laboratory experiments. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 3 van 7 gevonden artikelen
| << vorige | volgende >> |