Zum Problem des Passivrauchens

Summary

CO measurements were carried out in automobiles of different types on a route of 15.35 km through Hamburg. The route included autobahn, main roads, and by-streets. Two rides were carried out each day in the morning after rush hour. During the first ride no cigarettes were smoked; during the second ride, 2 of the 4 passengers smoked simultaneously 2×2 cigarettes. The doors and windows of the car were closed; ventilation varied as follows: Ventilation 0 = air jets closed, blower off; ventilation 1/2 = air jets open, blower off; ventilation 1 = air jets open, blower on. The following results were obtained:

• 1. The CO level in the car distinctly increased during smoking but decreased to ambient CO level within 2–3 min after smoking. This observation was also made in an unventilated car.

• 2. The absolute CO value depended on ventilation and speed. At one measuring point, for example, we found during a smoking period a mean CO concentration of 21.4 ppm at ventilation 0; 15.7 ppm at ventilation 1/2; and 12.0 ppm at ventilation 1. Under the same conditions at ventilation 0, we measured a mean CO concentration of 12.1 ppm at about 80 km/hr, and 24.3 ppm at about 35 km/hr.

Zusammenfassung

Auf Fahrten im Hamburger Stadtgebiet auf einer festgelegten Strecke werden in verschiedenen Kraftfahrzeugen die CO-Konzentrationen nach dem gleichzeitigen Rauchen von 2 Zigaretten bei unterschiedlich gelüfteten Wagen gemessen und mit den CO-Konzentrationen verglichen, die sich ohne Rauchen einstellten. Im ungünstigsten Fall im ungelüfteten Auto bei einer Geschwindigkeit um 30 km/Std stieg die CO-Konzentration um 20 ppm an. Im gelüfteten Fahrzeug war der Anstieg geringer. Bereits 2–3 min nach Beendigung des Rauchens waren in allen Fällen annähernd wieder Au\enbedingungen erreicht.