A controlled study on odor threshold and annoyance by ETS revealed that annoyance starts at very low ETS levels, close to the odor threshold. This study also demonstrated that protection from ETS can only be achieved by a smoking ban or by strictly separating smoking from non-smoking compartments. Inflammation was mainly present in samples of summer periods. The role of endotoxins and transition metals is studied. Increased levels of CO and NOx were observed.
Pollutant levels werebelow WHO guidelines but a good ventilation is recommended.
However, the use of a gas-oven can lead to critical indoor levels. Contact PD Dr. Ch. Dr. R.M. Widmer Tel.