Appendix F: Comparative analyses of concentration-response relationships with
adjustment for exercise-induced effects (by subtracting responses after control
exposures to filtered air).
Figure 1. Percentage change in forced expiratory volume in 1 second (FEV1) and in specific
airway resistance (SRaw) in healthy and asthmatic subjects following exposure by inhalation
(oronasal breathing) to nitrogen dioxide during exercise. Each dot represents the mean
response of all subjects in a particular experiment or level of exposure.
Figure 2. Percentage change in forced expiratory volume in 1 second (FEV1) in healthy and
asthmatic subjects following inhalation exposure (mouth-only breathing) to nitrogen dioxide
during exercise. Each dot represents the mean response of all subjects in a particular
experiment or level of exposure.
Figure 3. Percentage change in forced expiratory volume in 1 second (FEV1) and in specific
airway resistance (SRaw) in healthy and asthmatic subjects following exposure by inhalation
(oronasal breathing) to ozone during exercise. Each dot represents the mean response of all
subjects in a particular experiment or level of exposure.
Figure 4. Percentage change in forced expiratory volume in 1 second (FEV1) in healthy and
asthmatic subjects following inhalation exposure (mouth-only breathing) to ozone during
exercise. Each dot represents the mean response of all subjects in a particular experiment or
level of exposure.
Figure 5. Percentage change in forced expiratory volume in 1 second (FEV1) and in specific
airway resistance (SRaw) in healthy and asthmatic subjects following exposure by inhalation
(oronasal breathing) to sulfuric acid during exercise. Each dot represents the mean response of
all subjects in a particular experiment or level of exposure.
Figure 6. Percentage change in forced expiratory volume in 1 second (FEV1) in healthy and
asthmatic subjects following inhalation exposure (mouth-only breathing) to sulfuric acid
during exercise. Each dot represents the mean response of all subjects in a particular
experiment or level of exposure.
Figure 7. Percentage change in forced expiratory volume in 1 second (FEV1) and in specific
airway resistance (SRaw) in healthy and asthmatic subjects following exposure by inhalation
(oronasal breathing) to sulfur dioxide during exercise. Each dot represents the mean response
of all subjects in a particular experiment or level of exposure.
Figure 8. Percentage change in forced expiratory volume in 1 second (FEV1) in healthy and
asthmatic subjects following inhalation exposure (mouth-only breathing) to sulfur dioxide
during exercise. Each dot represents the mean response of all subjects in a particular
experiment or level of exposure.