Chromium-6 from medical implants not harmful to health Chromium-6 from medical implants, such as hip or knee implants, does not result in severe health damage.
Improvement of air quality continues In 2019, the calculated concentrations of nitrogen dioxide (NO2) and particulate matter (PM10) were below the European limit values in almost the whole of the Netherlands. Locally, the limit value for nitrogen dioxide is still being exceeded.