Environmental biomarkers

Measuring estrogenic activity in water after loading of bottom ash into ships. After publishing the results of Era CALUX above the trigger value of 3,8 ng E2-eq/l measurements were undertaken to protect water contamination and human health. 
Hare of Kings Garden
A point of attention is the choice of a reference location in a study of possible local pollution. In the environment of the incinerator, dead animals (birds, sheep) were found and so also dead hare. The hypothesis was tested if there could be found a relation lethality and PCDD/F content, so the liver was analyzed with DR CALUX. On finding some data, one needs also data from a reference location. ToxicoWatch was able to get here (n=6) living in the royal garden from the King of the Netherlands, ZKH Willem Alexander, Wassenaar/the Hague, the Netherlands. But even 'royal' hare can't escape the dioxin pollution and can't use as a reference for a 'clean' environment. 

Eggs as biomarkers

To determine local dioxin deposition in the environment of an incinerator, eggs of backyard chicken (n=23) were sampled within a radius of 700 – 13.000 m and analyzed with DR CALUX.

The results show strongly elevated levels of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dl-PCBs) in eggs within a radiation of 2 kilometers of the location of the waste incinerator. In order to find the source of this pollution, a study of a continuous sampling of flue gas (AMESA) followed after this pilot screening and confirmed high dioxin emissions by a so-called 'state of the art' incinerator, due use of bypass of the filters.