3. Number, Percent Detected, and Range of Urine Metabolite Concentrations in UK Staff Members (n = 4) before and after Trip to East Palestine, Ohio.

Parent chemical/metabolite, ng/mL	UK staff day 1 n (%) detected, range	UK staff day 2 n (%) detected, range
vinyl chloride, ethylene oxide, and acrylonitrile/HEMA	2 (50), ND - > 3	4 (100), >3–12
acrolein/3HPMA	4 (100), 9–72	4 (100), 20–100
acrolein/CEMA	4 (100), >5–45.7	4 (100), 13–67
benzene/PMA	0 (0), ND	0 (0), ND
toluene/BMA	2 (50), ND - 8.1	3 (75), ND - 7
ethylbenzene and styrene/PGA	4 (100), 12–64.5	4 (100), 14–200
xylene/MHA	4 (100), 13–56	4 (100), 3–95
butyl acrylate/BuAMA	0 (0), ND	0 (0), ND

ND: not detected; NA: not available.