This paper deals with the design and some of the results of a feasibility study focused on the relationships between changes in the quality of the environment and human response to it. Although other relevant variables have also been included, only a part of the research i.e. the perception and evaluation of air quality will be discussed here. This paper clarifies the importance of co-operation between social researchers and scientists of other schools and shows that a better explanation is given by integrating personal and situational data. It also emphasizes the use and the utility of panels as an instrument for measuring changes in human perception and behavior.