The model developed in this study allows a quantitative assessment and prediction of respiratory health outcomes as it relates to the location and timing of wildland fire emissions relevant for application to future wildfire scenarios.
(We neglect thermal emission as not particularly relevant for the problem considered in this article).Here is the speed of light in the medium, and is the attenuation coefficient ( and are the absorption and scattering coefficients, respectively), which is constant all over the medium, supposed homogeneous.
Road transport represents a major source of emission for the pollutants relevant for HYENA (PM10, NOx).
An external environmental impact is associated with the accessibility indicators, taking into account the influence of the cold-start emissions that are particularly relevant for short-distance trips.
The scenarios are rooted in four narrative "stories" about future worlds that describe alternative developments relevant for emissions and their driving forces.
Cycling contributes to other benefits, including reduced emissions of carbon dioxide relevant for reducing climate change, reduced use of physical space (e.g., related to parking), and reduced traffic noise for city dwellers, which may result in less annoyance.
Analyzing the uncertainties for the different steps in calculating GWP100, we see that for the liquid fuels, characterization uncertainty had higher contribution to uncertainty than the impact assessment part because CO2 emissions have lower uncertainty than CH4 emissions, the latter being more relevant for comparing gas fuels (Table 6).
Chemical speciation would allow assessing particles from different sources e.g. particles from combustion sources and non-tailpipe emissions separately, a question clearly relevant for air pollution control policy.
This supports the use of mechanistic modeling in hypothesis testing and illustrates that an understanding of temporal trends in emissions and of confounded time factors is relevant for POP monitoring studies.
However, these effects are not relevant for CLI applications because the emission of the primary charged particles is itself continuous in time and isotropic in space.
However, the emission energy is actually most often measured and is usually more relevant for technological applications.
