Table 6.
Comparison of Toxic Equivalences (TEQs) of house dust from the current study and prior studies.
| Study Location (Reference) | N | Median (pg TEQ/g )a | Range (pg TEQ/g)a | Study Period | Dust Sample Source | Study Population |
|---|---|---|---|---|---|---|
| LA, Detroit, Seattle, Iowa (current study) | 100 | 24 | 3.0, 169 | 1998–1999 | home vacuum cleaner | general population |
| Western Australia (Hinwood 2014) | 30 | <0.10 | <0.10, 4.8 | 2009–2011 | home vacuum cleaner | general population |
| Busan, Korea (Kim 2013) | 46 | 4.4 | 0.086, 170 | 2007 | home vacuum cleaner | general population |
| New York State (Tue 2013) | 21 | 4.4 | 0.086, 9.4 | 2005–2006 | home vacuum cleaner | general population |
| LA, Detroit, Seattle, Iowa (Deziel 2012) | 40 | 20 | 5.4, 260 | 1998–1999 | home vacuum cleaner | general population |
| Sauget, Illinois (Gonzalez 2011) | 14 | 504 | 29, 14000 | 2008 | attic | <2 miles of former PCB/pesticide manufacturer & secondary copper facilities |
| Louisiana, Mississippi, Alabama (Feng 2011) | 60 | 139 | 8.2, 13936 | not provided | attic | <2 miles of former wood treatment facilities |
| Michigan (UMDES 2008) | 198 | 11 | 1.6, 1060 | 2004–2005 | high-volume small-surface samplers | downwind from former incinerator/pesticide manufacturerb |
| Michigan (UMDES 2008) | 37 | 27 | 7.6, 96 | 2004–2005 | high-volume small-surface samplers | downwind from former incinerator/pesticide manufacturerb |
| Southern Alabama (Hensley 2007) | 11 | 84 | 8.4, 502 | 2006 | attic | <1 mile of former wood treatment facility |
| Mississippi (Dahlgren 2007) | 38 | 75 | 0.91, 22000 | 2007 | attic | <2 miles of former wood treatment facility |
WHO, World Health Organization; TEQ, Toxic Equivalency; UMDES, University of Michigan Dioxin Exposure Study; PCB, polychlorinated biphenyls
a
TEQs weighted by WHO 2005 TEFs, except for Hinwood study for which we present only the values for TCDD.
b
Based on aerosol dispersion model; distances from source not provided.