Table 4.

The Key Characteristics of DEP and Standard Urban Dust

	SRM 2975	SRM 1649a
Sources	DEP (from industrial forklift)	Urban dust
Particle diameter (µm)	31.9	20.8
Particle distribution (µm)
90%	70	48.6
10%	5.3	2.2
Elemental carbon	+++a	+
Trace metals	+	+++
Pesticides	[not available]	Heptachlor, levoglucosan, dibenzo-p-dioxin, dibenzofuran congeners
Selected PAHsb
Phenanthrene	17.0 ± 2.8	4.14 ± 0.37
Anthracene	0.038 ± 0.008c	0.432 ± 0.082
Fluoranthene	26.6 ± 5.1	6.45 ± 0.18
Pyrene	0.90 ± 0.24	5.29 ± 0.25
Benz[a]anthracene	0.317 ± 0.066	2.208 ± 0.073
Chrysene	4.56 ± 0.16	3.049 ± 0.060
Triphenylene	5.22 ± 0.20	1.357 ± 0.054
Benzo[b]fluoranthene	11.5 ± 3.6c	6.45 ± 0.64
Benzo[k]fluoranthene	0.678 ± 0.076	1.913 ± 0.031
Benzo[a]fluoranthene	0.06 ± 0.02c	0.409 ± 0.035
Benzo[e]pyrene	1.11 ± 0.10	3.09 ± 0.19
Benzo[a]pyrene	0.0522 ± 0.0053	2.509 ± 0.087
Perylene	0.054 ± 0.009c	0.646 ± 0.075
Anthanthrene	0.038 ± 0.008c	0.450 ± 0.067
Benzo[g,h,i]perylene	0.498 ± 0.044	4.01 ± 0.91
Indeno[1,2,3-cd]pyrene	1.4 ± 0.2c	3.18 ± 0.72
Dibenz[a,j]anthracene	0.37 ± 0.07c	0.310 ± 0.034
Dibenz[a,c/a,h]anthracene	0.52 ± 0.08c	0.488 ± 0.025
Pentaphene	0.038 ± 0.007c	0.151 ± 0.035
Benzo[b]chrysene	0.08 ± 0.03c	0.315 ± 0.013
Picene	1.0 ± 0.2c	0.426 ± 0.022
Dibenzo[b,k]fluoranthene	2.7	0.724 ± 0.076
Dibenzo[a,e]pyrene	0.57	0.565 ± 0.060

^aPlus signs (+) indicate levels relative to each other.

^bValues are mass fractions (expressed in mg/kg) of a mean of means from two or more analytical methods ± expanded uncertainty.

^cReferenced concentrations for selected PAHs.