Control measures against the spread of Legionella from wastewater treatment plants Wastewater treatment plants (WWTPs) may spread Legionella via the air and cause pneumonia if people inhale them.
Discussion regarding health-based guidance value of PFOA The European Food Safety Authority (EFSA) has published a provisional health-based guidance value for perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA).