Urban air pollution is generated, dispersed and eliminated by
many processes that combine to produce spatially variable concentrations
(Adams et al., 2012). These spatially variable fields are
ineffectively monitored with a single monitoring unit (Goldstein
and Landovitz, 1977). The effective monitoring of urban air pollution
can be done with a network of monitors. The monitors are
located to meet optimally the monitoring objectives (Kanaroglou
et al., 2005). Network objectives vary and are based on budgets
that constrain the number of available monitors, the region's geography,
the pollutant or pollutants of interest, and the pollutant
characteristics. Examples of network objectives include detecting
violations of a standard, monitoring the spatial and temporal
variability, and measuring the effectiveness of abatement strategies
(Lozano et al., 2009; Mazzeo and Venegas, 2007; Mofarrah and
Husain, 2010; Nakamori and Sawaragi, 1984; Su et al., 2007).