Temporary background values for PFAS in Dutch soil RIVM has derived temporary background values for two types of PFAS in Dutch soil: PFOS (perfluorooctane sulfonate) and PFOA (perfluoro octanoic acid).
Lab tests alone not conclusive for diagnosis of Lyme disease Lyme disease can cause a variety of complaints in patients. Laboratory tests for the disease can support medical practitioners in making a diagnosis but are not necessarily conclusive.