Table 2.
Mean ratings (entire sample) and response frequencies (%) regarding perceived air pollution for three groups exposed to different levels of air pollution, and results from group comparisons
| Mean | Exposure level | |||||
|---|---|---|---|---|---|---|
| To what extent are you usually exposed to the following factorsa | Low | Medium | High | Chi2 | p value | |
| Traffic exhaustb | 3.19 | 126 (31.3) | 134 (33.3) | 143 (35.5) | 1.58 | 0.45 |
| Street dustb | 3.21 | 133 (33.2) | 122 (30.4) | 146 (36.4) | 2.54 | 0.28 |
| Industrial air pollutionb | 2.09 | 39 (29.5) | 36 (27.3) | 57 (43.2) | 6.39 | 0.04 |
aRespondents who rated 4–5 on a 5-point scale, ranging from no exposure (1) to very high exposure (5)
bRepresenting perceived air pollution in the path analysis