• Perfluorooctanoic acid PFOA contaminated groundwater

Perfluorooctanoic acid PFOA contaminated groundwater

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    Product Description

    Perfluorooctanoic acid PFOA contaminated groundwater

    Blood test Perfluorooctanoic acid (PFOA) Serum

    Perfluorooctanic Acid i. Pl. in µg/l

    The BAT (Biological Workplace Dust Tolerance) value of the DFG is 5000 µg/L. The

    Umweltbundesamt has determined the following reference value for PFOA in plasma/serum:

    < 10 µg/l for women and men

    That is, the value should be below 10 µg/l for someone who does not come into contact with these substances professionally.

    News from the Dredging Village: PFOA found in groundwater from former landfills29
    October 2016

    The Dordrecht municipality has investigated the groundwater under the former Crayestein-Oost, Merwedepolder, Polder Stededijk and Transberg landfills for perfluorooctanoic acid (PFOA). Light to very light levels of PFOA were found in the groundwater at all of these former landfills, but nowhere did the provisional risk limit for PFOA in groundwater (248 ug/l) be exceeded. This was reported by the municipality of Dordrecht on Friday, October 28, 2016. The Sliedrecht municipality informed the municipal council about the investigation on Friday.

    PFOA was also found in the groundwater at polder Stededijk opposite Sliedrecht.
    In Dordrecht, there are a number of former landfills where industrial chemical waste was dumped in the past, possibly also originating from Dupont/Chemours. These companies used the substance PFOA for years until 2012. For all landfills, it is not known whether material containing PFOA was dumped there in the past, but given the dumping period and the limited registration at the time, this cannot be ruled out. Therefore, in recent months, the municipality has been investigating the groundwater under former landfills for which it has jurisdiction, for PFAS (perfluorocarbons), a collection of substances which includes PFOA.


    In the Netherlands, research into PFAS in soil and groundwater is not yet common practice. Therefore, the Ministry of I&M has set up a national pilot project "PFAS Framework Determination" to determine the best way to conduct this research.

    Dordrecht participates with four locations in this pilot: Polder Stededijk, the Merwedepolder, Transberg and Crayestein-Oost. The company Arcadis has taken groundwater samples at Polder Stededijk and Merwedepolder. These were analyzed and examined. Crayestein-Oost and Transberg were also sampled, by Tritium and Tauw respectively. In all cases, the levels of PFOA found in the groundwater were well below the provisional risk limit. However, the annual average upper limit of the environmental quality objective for PFAS in surface water is exceeded. This objective is generally considered to be extremely low, but in accordance with the Water Framework Directive, it must be achieved by 2027.

    Despite the fact that there are only slight to very slight levels of PFOA in the groundwater, further research is being conducted in the PFAS Framework Study to interpret the results. This study will also attempt to determine the origin of the PFOA found. There is no unambiguous explanation for this. The effect of the contribution of discharges of water with elevated levels of PFOA on surface water and sewage treatment plants will also be considered in the follow-up research.

    The municipality is responsible for the management of so-called 'landfill sites'. The province of South Holland is responsible for 'modern landfills': Crayestein-West and Third Merwedehaven. At the request of the province, the managers of these landfills have also examined the groundwater at their own facilities for the presence of PFAS. The results of those investigations will follow shortly.

    The provisional risk limit of 248 ug/l was drawn up by ENVIRON Netherlands BV in 2014 on behalf of DuPont/Chemours in response to the soil contamination at the Chemours/DuPont site. These values were determined on the basis of EFSA's European methodology. The government has not yet drawn up a national intervention value for PFOA. Therefore, the municipality of Dordrecht has commissioned RIVM to draw up local risk values for PFOA. These risk values will become available in the spring of 2017.

    The pilot mentioned above concerns a national study under the name 'PFAS Framework Determination'. It is a collaborative effort of the consulting firms TTE, Witteveen en Bos and Arcadis. Participating parties and/or sounding board members include the Ministry of Infrastructure and the Environment, provinces, municipalities, water boards and the RIVM. In total, research is being conducted at 15 locations throughout the country.


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      Perfluorooctanoic acid PFOA contaminated groundwater

      Perfluorooctanoic acid PFOA contaminated groundwater

      € 139,-

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