Table 2.

Biomarker levels measured in FLEHS IV adolescents normalized to specific gravity (urinary markers) or standardized for serum lipids (lipid-soluble serum biomarkers) (n = 409).

Group	Exposure	Median (P25, P75)
Metals (μg/L)	Pb (blood)	7.59 (5.96, 9.40)
	Mn (blood)	9.35 (7.90, 11.26)
	Cu (blood)	795 (724, 877)
	Cd (urine)	0.29 (0.23, 0.39)
	Tl (urine)	0.36 (0.29, 0.43)
Pesticide (μg/L)	3-PBA	0.87 (0.58, 1.58)
	2,4-D	0.27 (0.15, 0.45)
	TCPY	4.5 (2.9, 6.4)
PCBs (ng/g lipid)	PCB118	2.13 (1.55, 2.95)
	PCB153	10 (6, 16)
	PCB138	6.9 (4.7, 10.1)
	PCB187	1.10 (0.65, 1.89)
	PCB180	4.3 (2.7, 7.3)
	PCB170	2.00 (1.24, 3.26)
OC pesticides (ng/g lipid)	OXC	1.18 (0.82, 1.74)
	TN	0.80 (0.51, 1.17)
	p,p'-DDE	36 (24, 63)
	p,p'-DDT	2.4 (1.1, 4.5)
	HCB	7.6 (5.7, 9.8)
	β-HCH	1.13 (0.81, 1.50)
PFAS (μg/L)	PFOA	1.10 (0.84, 1.30)
	PFNA	0.31 (0.23, 0.44)
	PFHxS	0.48 (0.35, 0.65)
	PFOS	2.10 (1.40, 3.15)
PAH (μg/L)	1-NAP	0.07 (0.05, 0.09)
	2-NAP	3.7 (2.1, 6.9)
	2-PHEN	0.07 (0.05, 0.10)
	3-PHEN	0.07 (0.05, 0.10)
Benzene (μg/L)	TTMA	101 (57, 146)
OPFRs (μg/L)	DPHP	1.32 (0.88, 2.05)
	BDCIPP	0.34 (0.15, 0.69)
	BCIPHIPP	0.65 (0.30, 1.47)
	EHPHP	4.1 (2.8, 6.7)
	BBOEHEP	0.04 (0.02, 0.07)
	5-OH-EHDPHP	0.09 (0.06, 0.16)
Bisphenol (μg/L)	BPA	1.14 (0.68, 1.91)
	BPF	0.15 (0.08, 0.30)
	BPS	0.14 (0.07, 0.22)
Phthalates, DINCH & other alternative plasticizers (μg/L)	MEP	27 (15, 71)
	5cx-MEPP	16 (12, 22)
	5OH-MEHP	6.6 (4.3, 10.1)
	MiBP	22 (15, 41)
	MnBP	19 (12, 31)
	5oxo-MEHP	4.1 (2.8, 6.6)
	MBzP	2 (1, 6)
	MEHP	1.32 (0.83, 2.13)
	OHMEHTP	0.58 (0.35, 1.02)
	MHNP	4.3 (2.8, 6.5)
	MCOP	1.88 (1.29, 2.84)
	MHNCH	1.16 (0.72, 2.28)
	MCOCH	1.07 (0.74, 1.68)
	OHMIDP	0.73 (0.45, 1.21)
	CXMIDP	1.25 (1.06, 1.58)
	OXOMIDP	0.41 (0.28, 0.68)