With an obvious gap in concentration, some same outdoor pollutants could be found at working places. But time and dose exposure could promote the starting of irritant asthma, like sulfite mill workers in whom sulfur dioxide established a risk of four to six times greater for new-onset medical-diagnosed asthma. Not only
pollutants are capable of inducing asthma, instruments and surface cleaners, adhesives and latex particles have been implicated in that process within healthcare workers. The list of demonstrated provoking agents, as well as mechanism involved, goes beyond the present analysis.