Particulate matter contains more harmful substances than we thought
New research has raised questions over the manner in which we have been analysing the component parts of particulate matter, suggesting that the delays in testing samples are allowing a large amount of harmful substances to be missed.
Efforts to control viruses in hospitals could cause them to spread further
Researchers at University College London have found that increased use of ventilation and air cleaners in hospitals, intended to control the spread of viral infections, can be counterproductive.