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.
Measures to reduce microplastic emissions in the environment Microplastics are plastic particles that are smaller than 5 millimetres; through the use of plastic or rubber products these microplastics can end up in the environment (surface water, soil, and ai