Research Article

Potential Impacts of the Introduction of Low-Sulfur Fuel on P M 𝟐 . 𝟓 Concentrations at Breathing Level in a Subarctic City

Figure 7

Relative responses of (a) total PM2.5, (b) sulfate and (c) nitrate concentrations to the assumed fuel sulfur content reductions and (d) relation of relative responses of sulfate and nitrate at different temperature ranges. The temperature ranges on each bar are the ranges of temperature which has the most frequent occurrence, and the axis indicates that frequency.
427078.fig.007a
(a)
427078.fig.007b
(b)
427078.fig.007c
(c)
427078.fig.007d
(d)