Table 5.

Summary statistics for pyrethroid concentrations (ng/g) in dust from multiple studies.

Pyrethroid (ng/g)			cis-Permethrin				trans-Permethrin				Cypermethrin				Deltamethrin				Esfenvalerate				Resmethrin
Study	Year	N	%D	50th	95th	Max	%	50th	95th	Max	%D	50th	95th	Max	%D	50th	95th	Max	%D	50th	95th	Max	%D	50th	95th	Max
MICASA, Farmworker Families, Mendota, CA	2009	55	67	244	755	1410	67	172	421	1737	52	186	7036	15059	20	<LOD	385	701	44	<LOD	454	585	29	<LOD	261	964
Urban & Rural CA, Quirós-Alcalá et al. (2011)	2006
Oakland		13	100	291	21600	26700	100	504	36400	46800	64	587	5990	13100	12	<LOD	13000	16300	ND	–	–	–
Salinas		15	100	568	5930	6300	100	952	9170	9690	55	230	4540	13500	17	<LOD	3780	5590	3	<LOD	<LOD	67
Davis, CA Apartments, Hwang et al. (2008)	2004	11	91	52	319a	NR	91	126	680a	NR	91	177	1033a	NR
Farmworker Families, Salinas, Bradman et al. (2007)	2002	20	100	210	NR	2900	100	570	NR	5800	40	100	NR	1500	5	<LOD	NR	560	5	<LOD	NR	50	ND	–	–	–
Urban Public Housing, Boston, Julien et al. (2008)	2002–2003	35	100b	920b	NR	13100b					60	300	NR	5200	9	<LOD	NR	7000	29	<LOD	NR	1200	ND	–	–	–
Ohio Preschool Children - homes, Morgan et al. (2007)	2001	120	100	470	7630	79600	100	344	9210	78800
Ohio & N. Carolina Homes & Daycares, Starr et al. (2008)	2000–2001	85	100	666	14122	30553	100	711	11980	30420	34	<LOD	1571	6492	5	<LOD	<LOD	2503	8	<LOD	60	943
National Cancer Institute, Colt et al. (2004)	1999–2001	513	72	337c	NR	NR	74	517c	NR	NR
Cape Cod, MA Homes, Rudel et al. (2003)	1999–2001	119	45	<LOD	NR	61900	53	387	NR	98000	5	<LOD	NR	172000

^a90th percentiles reported.

^bTotal permethrin reported.

^cGeometric mean reported.