EARTH Thailand

PCDD/Fs and PCBs in eggs – data from China, Kazakhstan and Thailand

Authors: Petrlik J1,2, Teebthaisong A3, Bell L2,4, Behnisch PA5, Da M6, Saetang P3, Ritthichat A3, Kalmykov D7


There is a range of studies on PCDD/Fs and PCBs in eggs1-7. Eggs have been found to be sensitive indicators of PCDD/F and PCB contamination in soils and are an important exposure pathway from soil pollution to humans. Eggs from contaminated areas can readily lead to exposures which exceed thresholds for the protection of human health1-3. Chickens and eggs might, therefore, be considered ideal “active samplers” and indicator species for POPs contaminated sites but there are, as yet, few systematic studies linking pollution sources, related exposures and concentrations of contaminants in eggs.

In this study, we sought to broaden the available data and eggs were sampled at sites suspected of being impacted by POPs in China, Kazakhstan and in Thailand. It is based on larger reports released in 2016/2017, where more information about the sites can be found7-9.


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1 Arnika, Delnicka 13, Prague, Czech Republic, CZ-17000;

2 IPEN, Göteborg, Sweden, SE-4035;

3 Ecological Alert and Recovery – Thailand (EARTH), Nonthaburi, Thailand, TH-11000;

4 National Toxics Network, Perth, Australia;

5 BioDetection Systems BV (BDS), Science Park 406, 1098 XH Amsterdam, The Netherlands;

6 Nature University, Beijing, China;

7 Karaganda Regional Ecological Museum, Karaganda, Kazakhstan, 100000