Effects of Population Weighting on PM₁₀ Concentration Estimation

Table 7

Spearman’s correlation coefficients r of population density and PWEL of PM₁₀ (n = 48).

Variable	Median (IQR)	r	value^a
Population density (persons/km^2)	170 (537)	0.438	0.002
PWEL of PM10 (µg/m³)	39 (11)

Note.^aSpearman’s rank order correlation. IQR: interquartile range.