| Title: |
Toxaphene in the Czech Aquatic and Terrestrial Ecosystems
|
| Resource Type: |
document --> technical publication --> proceedings / conference paper(s)
|
| Country: |
EU Projects
|
| Year of publication: |
2003 |
| Availability: |
Kosubová, P. et al. (2003) Toxaphene in the Czech Aquatic and Terrestrial Ecosystems. Persistent Toxic Substances Contamination of the European Region as a reflection of results of the GEF/UNEP Regional Based Assessment of Persistent Toxic Substances (RBA PTS) in Europe, the implementation of the Stockholm Convention and 'Community Strategy for Dioxins, Furans and PCBs
|
| Author 1/Producer: |
Kosubová, P.
|
| Other Authors/Producers: |
Grabic, R., Holoubek, I.
|
| Author / Producer Type: |
EC Project
|
|
EUGRIS Keyword(s): |
Diffuse pollution-->Contaminants-->Persistent Organic Pollutants
|
| Short description: |
Toxaphene is still residual organochlorinated pollutant in the Czech environment after more than 20 years of its application. Within the years 1963-1985, almost 1000 tons of technical toxaphene was used for the treatment of cole-seed against rape beetle (Meligethes aeneus) and lucerne against lucerne flower midge (Contaniria medicaginis) (1-4). It has never been analyzed till our pilot study (5). Results show that toxaphene is not present in abiotic matrices with low content of organic material (COM), e.g. arable soils from various agricultural regions and grass-land soils. Toxaphene application was banned almost twenty years ago (1) and then it has been undergoing to degradation by sunlight and soil microorgamisms in treated areas, that´s why the toxaphene levels are below detection limit or it is not detected at present. On the other hand, toxaphene was determined in the matrices with high COM such as forest soils or litter from remoted areas, e.g. mountains. It refers to the atmospheric transport of toxaphene and slower degradation in these matrices. Following detailed study of this pesticide fate in terrestrial ecosystem confirmed previously described results (5). This study also includes data about aquatic ecosystem.
|
|
Submitted By:
|
Dr Stefan Gödeke WhoDoesWhat?
Last update: 14/02/2006
|
|
|
