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).
Every year, 300,000 tick bites in urban areas One in 5 tick bites occurs in an urban area. Although most tick bites occur in the countryside, many people are bitten in urban areas as well.