157 
Research and monitoring studies providing data on dicofol concentrations in water and 
sediment samples are listed in the Background Document on Dicofol from OSPAR (see 
Table 56). The document provides information on the accumulation in biota, which is 
reported to be between 8050 and 25000 (Background Document on Dicofol). 
No information is currently available on the distribution of dicofol in the marine 
environment. 
Table 56: Overview of dicofol concentrations in the environment. 
Sample 
Sampling 
location 
Sampling date 
Concentration 
[ng/L; pg/kg] 
Limit of 
detection 
River water 
US 
1996 
2.5 a 
- 
Sediment 
US 
1996 
23.7 a 
- 
River water 
Greece 
1996 
<0.1 a 
- 
Sediment 
Greece 
1996 
2.2 a 
- 
Drinking water 
US 
- 
>LOD, <LOQ b 
- 
Groundwater 
US 
1982 
0.2-1.8 b 
- 
Data from: a (OSPAR Background document on Dicofol), b (Chemical fact sheet 
www.speclab.com) 
In Europe, dicofol is used mainly in Mediterranean countries, e.g. Portugal, Spain, 
France, Italy, and Greece. In Belgium and the UK, it is registered and used in minor 
quantities of 200 and 1002 kg/a, respectively. In Germany, Denmark, the Netherlands, 
Sweden, Norway, Finland, and Switzerland, dicofol is not registered at present.