Logo des Repositoriums
Zur Startseite
  • English
  • Deutsch
Anmelden
  1. Startseite
  2. SuUB
  3. Dissertationen
  4. THE FACTOR TIME IN ASSESSING ECOTOXICITY:Studies with Herbicides and Metals applied singly and in combination to Lemna minor in simple and complex exposure patterns.
 
Zitierlink URN
https://nbn-resolving.de/urn:nbn:de:gbv:46-00102591-10

THE FACTOR TIME IN ASSESSING ECOTOXICITY:Studies with Herbicides and Metals applied singly and in combination to Lemna minor in simple and complex exposure patterns.

Veröffentlichungsdatum
2011-09-09
Autoren
Drost, Wiebke  
Betreuer
Backhaus, Thomas  
Gutachter
Filser, Juliane  
Zusammenfassung
Ecotoxicological toxicity data serve as a basis to assess the hazard of a substance and help to decide whether a risk of adverse effects in the environment is likely. Toxicity tests are often restricted to simple single substance tests with short time periods of exposure. They only regard toxicity at a certain time point distinguishing only between acute or chronic toxicity. However, time consists of many timescales, like toxicodynamic, the dynamics of injury and recovery and toxicokinetic, the dynamics of absorption and elimination of a toxicant. Additionally, the exposure to hazardous compounds may not follow simple exposure patterns. Environmental concentrations of pollutants may fluctuate, due to variable emissions from anthropogenic sources such as the seasonal use of herbicides and storm runoff or flooding. As a result, organisms can be exposed to a multitude of different toxicants with complex time patterns. Taking these aspects into consideration, the aim of this study is to gain an insight into what influence time has on toxicity and how toxicity develops if the exposure follows complex time patterns.
Schlagwörter
time

; 

Ecotoxicity

; 

Mixture
Institution
Universität Bremen  
Fachbereich
Fachbereich 02: Biologie/Chemie (FB 02)  
Dokumenttyp
Dissertation
Zweitveröffentlichung
Nein
Sprache
Englisch
Dateien
Lade...
Vorschaubild
Name

00102591-1.pdf

Size

2.36 MB

Format

Adobe PDF

Checksum

(MD5):1e423421f5bf2ddf656409d07238a25e

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science

  • Datenschutzbestimmungen
  • Endnutzervereinbarung
  • Feedback schicken