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Environmental and Workplace Health

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Final Human Health State of the Science Report on Lead

Table 4. Lead loadings in household dust in Canadian residential homes
Year	Location	n	Sample location	Median/ geometric mean concentration	% < LOD^{Table 4 footnote a}	Concentration range	Reference
- not reported Table 4 footnotes Table 4 footnote a Limit of detection. Return to Table 4 footnote a referrer Table 4 footnote b The vacuum bags or contents of a canister vacuum used by the participant were obtained and submitted for analysis. Return to Table 4 footnote b referrer Table 4 footnote c Samples collected in 222 Ontario homes during January–March 2008: Barrie (57 homes), Greater Sudbury (86 homes) and Thunder Bay (79 homes). Return to Table 4 footnote c referrer Table 4 footnote d Samples collected between September 2009 and March 2010. Return to Table 4 footnote d referrer Table 4 footnote e LOD is reported to be 0.019 µg. Return to Table 4 footnote e referrer Table 4 footnote f LOD is reported to be 0.125 µg. Return to Table 4 footnote f referrer Table 4 footnote g From homes built prior to 1950. Report indicates that 196 households participated in environmental sampling; only a small number were built after 1950. Return to Table 4 footnote g referrer
Vacuum samples: bioaccessible lead (mg/kg)
2007-2010	Canada	1025	Whole house, technician collected	63/74	0	7.9-3916	Rasmussen et al. 2011
2010- 2011	4 boroughs of Montréal, QC	201	Not stated, participant collected^{Table 4 footnote b}	93/117	0	2.9-6898	Gauvin et al. 2011
Wipe samples (µg/ft²)
2008	Ontario^{Table 4 footnote c}	208	Entry	0.52/-	22	<0.086-58	McDonald et al. 2010
		218	Kitchen	0.095/-	49	<0.086-15
		114	Living room/family room	<LOD/-	49	<0.086-45
		93	Adult bedroom	0.30/-	43	<0.086-39
		50	Child bedroom	<LOD/-	60	<0.086-67
		23	Playroom	0.32/-	26	<0.086-20
2010-2011	4 boroughs of Montréal, QC^{Table 4 footnote d}	305	Floor	0.70/0.85	-	0.08-90.9	INSPQ 2011
2010-2011	4 boroughs of Montréal, QC^{Table 4 footnote d}	263	Child bedroom window sill	7.15/7.14	-	< LOD^{Table 4 footnote e}-1216	INSPQ 2011
2010	St. John's, NL	194	Floor	0.6/0.61	-	0.06-407	Bell et al. 2011
		184	Window sill	1.35/1.1	-	<LOD^{Table 4 footnote f}-1236
		180	Window trough	17.8/17.8	-	<LOD^{Table 4 footnote e}-6101
2008-2009	(North) Hamilton, ON	-	Living room floor	-	-	<1-109^{Table 4 footnote g}	Richardson et al. 2011
1999-2004	United States	2065	All floor	-/0.52	-	-	Gaitens et al. 2009
1999-2004	United States	1618	Window sill	-/7.64	-	-	Gaitens et al. 2009