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.
Possible health risks due to exposure to chromium-6 at tROM project Tilburg Research by RIVM shows that the participants in the so-called tROM project, their supervisors and other people involved may have been exposed to chromium-6.