Quantifying the Air Pollution Exposure Consequences of - Houston ...

Figure 22. Interquartile box plots of conserved pollutant, annual-average intake fraction
for hypothetical DG sources co-located at the sites of the three categories of existing
source cases as well as at the city halls of the eleven most populous cities in
California .................................................................................................................. 84
Figure 23. Interquartile box plots of conserved pollutant, annual-average intake fraction
for each type of co-located hypothetical DG source by location category............... 85
Figure 24. Annual-average conserved pollutant intake fraction for urban hypothetical DG
units, both co-located with existing sources and sited at the city halls of the eleven
most populous cities in California, sorted by annual-average iF.............................. 86
Figure 25. Annual-average conserved pollutant intake fraction for rural, hypothetical DG
units located at the sites of all rural existing plants of all types, sorted by iF. ......... 87
Figure 26. Interquartile box plots of conserved pollutant, annual-average intake fraction
for existing sources compared to co-located hypothetical DG sources within each of
three categories of cases............................................................................................ 89
Figure 27. Comparison of annual-average conserved pollutant intake fractions for central
stations and co-located hypothetical DG units by location category (urban/rural) and
release type (elevated/ground).. ................................................................................ 90
Figure 28. Annual-average conserved pollutant intake fraction for pairs of existing
cogeneration stations and co-located, hypothetical DG units by location category
(urban/rural) and release type (elevated/ground)...................................................... 91
Figure 29. Annual-average conserved pollutant intake fraction for pairs of existing DG
(> 1 MW) and co-located, hypothetical DG units by location category (urban/rural)
and release type (elevated/ground). .......................................................................... 92
Figure 30. Interquartile box plots of annual-average intake fraction for a conserved
pollutant and a decaying pollutant (formaldehyde) considering all case types ........ 94
Figure 31. Interquartile box plots of decaying pollutant (HCHO), annual-average intake
fraction for co-located existing sources vs. hypothetical DG sources within each of
three categories of cases............................................................................................ 95
Figure 32. Interquartile box plots of annual-average IGR for primary PM2.5 for two types
of existing electricity generation sources................................................................ 101
Figure 33. Interquartile box plots of annual-average IGR for primary PM2.5 by location
category................................................................................................................... 102
Figure 34. Interquartile box plots of annual-average IGR of primary PM2.5 by release
type and location category for central stations. ...................................................... 103
Figure 35. Interquartile box plots of annual-average IGR of primary PM2.5 by fuel type
for two types of existing electricity generation sources (central station and existing
DG (> 1 MW)). ....................................................................................................... 104
Figure 36. Interquartile box plots of annual-average IGR for primary PM2.5 for existing
and BACT-controlled central stations and DG technologies at city halls. ............. 106
Figure 37. Interquartile box plots of annual-average IGR for primary HCHO for existing
and BACT-controlled central stations and DG technologies at city halls .............. 107
Figure 38. Interquartile box plots of primary PM2.5 emission factors for small-scale (< 1
MW) DG technologies necessary to equal the IGR of the existing units or BACTcontrolled
existing units.......................................................................................... 109
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