Journal of Environmental and Public Health / 2015 / Article / Tab 2

Research Article

Organic Compounds Detected in Deciduous Teeth: A Replication Study from Children with Autism in Two Samples

Table 2

Detection frequency and concentration distributions of SVOC in a deciduous tooth crown of 71 IAN children with ASD.

Analyte (parent)Mean (ng/g)Number of teethDetectionsConcentration (ng/g)
NumberPercentP25P50P75P90P95Max

LC/MS/MS-detected analytes
 Acetaminophen0.98713144%<1.4<1.45.124.452.51050
 DEET82.2715375%<4.313.747.51011983270
 TCPy (chlorpyrifos)0.8871913%<1.3<1.3<1.31.98.718.5
 IMPy (diazinon)0.9671913%<1.0<1.0<1.00.42.856.7
 MEP (DEP)268.63131100%56.513823587012901720
 MnBP (DnBP, BzBP)229.0716186%11.034.015773012703250
 MiBP (DiBP)70.24715070%<6.019.762.7186342790
 MBzP (BzBP)2.397146%<10.0<10.0<10.0<10.025.474.3
 MEHP (DEHP)47.0562036%<10<1032.9214319715

Polyunsaturated fatty acidsMean g/gNumber of teethDetectionsConcentration (g/g)

LA, C18:2 n614.17171100%4.427.5817.034.361.292.1
ALA, C18:3 n30.70711521%<1.0<1.0<1.01.963.6015.4
ARA, C20:4 n62.60716085%1.291.823.495.238.6615.0
DHA, C22:6 n30.31711420%<1.0<1.0<1.01.522.092.41

MEP reported after matrix blank subtraction.
Recovery range of equilibrated spiked surrogates from the 71 teeth was 8–92% for acetaminophen-d4, 55–222% for MEHP-13C4, and 30–163% for C21:0.

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