We are looking for about 5 kg material with a dioxin level of at least ng I-TEq/kg in order to process it as a reference material for a validation ring test. We could also take the samples ourselves at a site in Germany.
I heard about there was a site area more than 10 hecters, which soil was severely polluted with dioxins and mercury in southern Taiwan. The site once was a chemical factory many years ago. Recently the site is under controlled by Taiwan government and remediation program is persisted for eliminating the pollutant. Due to complex terran of site district, the site may be recovered eventually in near future through aggressive implementation by adminstration of Taiwan EPA.
I am currently working on a large site in Vietnam with soil and sediment contamination by 2,3,7,8-TCDD related to Agent Orange. Excavation is ongoing. It might be possible to send some of this soil, but shipping it is sometimes challenging. Concentrations could range from a few thousand to a few tens of thousands of ppt. Approval would have to be obtained from our client. Let me know if you'd like to discuss this further.
Many thanks Chen and Kent for your reply! I have just noticed that I didn't give the number for the desired level accidently. It is between 200 and 500 ng I-TEq/kg.The sites you are referring to are obviously far from it. Therfore you are right that shipping will be the most challenging part.
I'll let you know if we will be not sucessful to get material containing the desired level and contact you directly.
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