Carbonaceous Aerosols in Fine Particulate Matter of Santiago Metropolitan Area, Chile

Table 6

Average inorganic and organic fractions (as percentages), total carbon (TC) incorporated into the PM_2.5, and organic (OC) and elemental carbon (EC) fractions as percentages of the total carbon (TC) in the period from 2002 to 2007 at the three stations studied in the cool and warm seasons.

Site	Period	PM2.5 (𝜇g m^−3)	Inorganic fraction (IF%)	Carbon fraction (CF%)	TOC (𝜇g m^−3)	POC (%)	SOC (%)
Las Condes^a	Cool	32.0 ± 20.6	57.9	42.1	10.8 ± 6.1	70	30
	Warm	21.8 ± 11.3	65.0	35.0	6.3 ± 2.6	75	25
P. O’Higgins^a	Cool	47.5 ± 32.9	53.3	46.7	15.6 ± 10.5	73	27
	Warm	23.2 ± 11.6	69.9	30.1	5.5 ± 2.8	76	24
Pudahuel^a	Cool	46.6 ± 39.0	48.1	51.9	18.1 ± 16.4	62	38
	Warm	21.0 ± 11.6	68.1	31.9	5.4 ± 3.7	71	29

aLabel of the stations in Figure 1. Las Condes: C Label, P. O’Higgins: O Label, and Pudahuel: P Label.