Table 2.
Targeted Analysis of Indoor Contaminants in Residential House Dust Samples
| Chemical | % Detect | Concentration Range (ng/g dust) | Median (ng/g) |
|---|---|---|---|
| Pesticides | |||
| Chlorpyrifos | 98.4 | <MDL - 87,960 | 3,182 |
| cis-Chlordane | 80.2 | <MDL - 16,060 | 74.7 |
| trans-Chlordane | 84.0 | <MDL - 22,430 | 23.5 |
| cis-Permethrin | 98.9 | <MDL - 203,600 | 585.2 |
| trans-Permethrin | 100.0 | 171.2 – 176,900 | 1,788 |
| Cypermethrin | 95.7 | <MDL - 106,000 | 1,706 |
| Thiabendazole | 35.3 | <MDL - 211.5 | NR |
| Azoxystrobin | 93.0 | <MDL - 9,635 | 2.5 |
| Fluoxastrobin | 74.9 | <MDL - 37.0 | 0.2 |
| Pyraclostrobin | 34.0 | <MDL - 48.6 | NR |
| Trifloxystrobin | 37.4 | <MDL - 2.5 | NR |
| Polycyclic aromatic hydrocarbons (PAHs) | |||
| Naphthalene | 72.9 | <MDL - 1,865 | 19.2 |
| 1-Methylnaphthalene | 16.0 | <MDL - 587.6 | NR |
| 2,6-Dimethylnaphthalene | 41.5 | <MDL - 1,120 | NR |
| Acenaphthylene | 70.2 | <MDL - 1,017 | 10.0 |
| Acenaphthene | 1.1 | <MDL - 6,763 | NR |
| Dibenzofuran | 20.7 | <MDL - 1,044 | NR |
| Fluorene | 64.9 | <MDL - 2,510 | 36.5 |
| Dibenzothiophene | 96.3 | <MDL - 3,713 | 41.1 |
| Phenanthrene | 98.4 | <MDL - 30,400 | 267.3 |
| Anthracene | 100.0 | 0.2 – 8,005 | 23.5 |
| Carbazole | 69.1 | <MDL - 17,590 | 27.5 |
| 1-Methylphenanthrene | 96.3 | <MDL - 84,060 | 170.7 |
| 2-Methylnaphthalene | 94.7 | <MDL - 36,930 | 138.7 |
| Fluoranthene | 100.0 | 0.7 – 95,150 | 252.7 |
| Pyrene | 100.0 | 0.8 – 70,670 | 251.5 |
| 1,2-Benzofluorene | 97.9 | <MDL - 15,930 | 54.6 |
| Retene | 94.7 | <MDL - 49,420 | 112.5 |
| 3,4-Benzofluorene | 98.9 | <MDL - 9,886 | 44.9 |
| Benzo(c)phenanthrene | 90.4 | <MDL - 9,342 | 19.3 |
| Benzo(b,k)fluoranthene | 92.6 | <MDL - 65,360 | 149.1 |
| Benzo(a)fluoranthene | 66.0 | <MDL - 8,917 | 35.4 |
| Benzo(e)pyrene | 80.9 | <MDL - 40,860 | 55.1 |
| Benzo(a)pyrene | 84.6 | <MDL - 61,730 | 134.3 |
| Perylene | 50.5 | <MDL - 9,669 | 20.6 |
| 3-Methylcholanthrene | 23.9 | <MDL - 18,490 | NR |
| Benzo(g,h,i)perylene | 78.7 | <MDL - 76,460 | 149.8 |
| Phthalates | |||
| DMP | 38.0 | <MDL - 15,160 | NR |
| DEP | 70.6 | <MDL - 64,660 | 1,906 |
| DiBP | 99.5 | <MDL - 149,000 | 4,404 |
| BBP | 99.5 | <MDL - 1,339,000 | 13,630 |
| DBP | 99.5 | <MDL - 213,500 | 9,640 |
| DEHP-adipate | 47.6 | <MDL - 61,580 | NR |
| DEHP | 100.0 | 6,213.3 – 1,812,000 | 118,000 |
| Dioctyl-terephthalate | 100.0 | 4,506.1 – 2,970,000 | 133,100 |
| DINP | 99.5 | <MDL - 1,985,000 | 117,300 |
| TOTM | 81.8 | <MDL - 281,700 | 4,932 |
| Perfluorinated alkyl substances (PFAS) | |||
| 6:2 FTOH | 96.3 | <MDL - 248,900 | 580.1 |
| 8:2 FTOH | 99.5 | <MDL - 44,220 | 1,428 |
| MeFOSE | 19.3 | <MDL - 7,981 | NR |
| EtFOSE | 15.5 | <MDL - 510.9 | NR |
| 6,2-diPAP | 100.0 | 1.1 – 34,360 | 112.5 |
| 8,2-diPAP | 33.3 | <MDL - 6,894 | NR |
| PFBA | 9.3 | <MDL - 545.6 | NR |
| PFBS | 1.1 | <MDL - 577.9 | NR |
| PFDA | 40.4 | <MDL - 4,130 | NR |
| PFHpA | 97.3 | <MDL - 713.4 | 9.1 |
| PFHxA | 97.3 | <MDL - 1,382 | 8.5 |
| PFHxS | 56.3 | <MDL - 694.4 | 0.8 |
| PFNA | 99.5 | <MDL - 207.9 | 3.3 |
| PFOA | 100.0 | <MDL - 2,354 | 8.1 |
| PFOS | 83.6 | <MDL - 2,809 | 4.0 |
| PFPA | 9.8 | <MDL - 134.5 | NR |
| Polybrominated diphenyl ethers (PBDEs) | |||
| BDE-30 | 12.3 | <MDL - 57.2 | NR |
| BDE-17 | 62.6 | <MDL - 6,632 | 2.6 |
| BDE-25 | 58.8 | <MDL - 702.8 | 1.4 |
| BDE-28,33 | 65.8 | <MDL - 659.0 | 8.3 |
| BDE-49 | 97.3 | <MDL - 670.9 | 20.0 |
| BDE-47 | 93.0 | <MDL - 20,200 | 166.4 |
| BDE-66 | 58.3 | <MDL - 311.1 | 4.3 |
| BDE-100 | 95.7 | <MDL - 5,885 | 44.7 |
| BDE-99 | 99.5 | <MDL - 22,730 | 322.8 |
| BDE-119 | 72.7 | <MDL - 850.6 | 13.1 |
| BDE-85,155 | 89.3 | <MDL - 1,443 | 21.1 |
| BDE-154 | 90.9 | <MDL - 1,503 | 24.5 |
| BDE-153 | 96.3 | <MDL - 2,991 | 41.7 |
| BDE-138 | 96.8 | <MDL - 570.2 | 18.8 |
| BDE-156 | 59.9 | <MDL - 192.0 | 4.6 |
| BDE-183 | 74.3 | <MDL - 2,750 | 8.0 |
| BDE-191 | 66.3 | <MDL - 2,043 | 6.7 |
| BDE-181 | 20.3 | <MDL - 185.6 | NR |
| BDE-190 | 11.2 | <MDL - 181.9 | NR |
| BDE-203,200 | 79.1 | <MDL - 3,762 | 7.7 |
| BDE-205 | 85.0 | <MDL - 576.0 | 25.2 |
| BDE-206 | 96.3 | <MDL - 9,831 | 144.9 |
| BDE-209 | 90.4 | <MDL - 117,700 | 579.6 |
| Novel brominated flame retardants (BFRs) | |||
| TBB | 99.5 | <MDL - 26,520 | 248.8 |
| TBPH | 99.5 | <MDL - 17,720 | 408.1 |
| OBIND | 11.2 | <MDL - 1,121 | NR |
| DBDPE | 67.4 | <MDL - 11,790 | 113.4 |
| TTBP-TAZ | 26.2 | <MDL - 11,900 | NR |
| Organophosphate flame retardants (OPFRs) | |||
| EHDP | 98.4 | <MDL - 3,342 | 215.4 |
| TnBP | 0.0 | <MDL | NR |
| TBOEP | 97.9 | <MDL - 2,209,000 | 6,233 |
| TCEP | 98.4 | <MDL - 167,500 | 793.0 |
| TCPP | 100.0 | 241.2 – 468,800 | 3,696 |
| TDCPP | 100.0 | 98.9 – 257,900 | 4,902 |
| Tpp | 100.0 | 74.8 – 291,000 | 2,132 |
| 2-IPPDPP | 81.3 | <MDL - 2,646 | 93.5 |
| 4-IPPDPP | 54.0 | <MDL - 1,267 | 24.6 |
| 2,4-DIPPDPP | 69.0 | <MDL - 6,775 | 128.4 |
| B2-IPPPP | 21.4 | <MDL - 2,143 | NR |
| B4-IPPPP | 48.1 | <MDL - 1,183 | NR |
| B2,4-DIPPPP | 8.0 | <MDL - 29,640 | NR |
| 4tBPDPP | 95.2 | <MDL - 85,990 | 515.6 |
| 2tBPDPP | 0.0 | <MDL | NR |
| B2tDPP | 0.0 | <MDL | NR |
| B4TBPP | 84.0 | <MDL - 12,780 | 74.9 |
| T4tBPP | 29.9 | <MDL - 822.8 | NR |
| Polychlorinated biphenyls (PCBs) | |||
| PCB-28 | 1.6 | <MDL - 505.3 | NR |
| PCB-52 | 6.4 | <MDL - 476.3 | NR |
| PCB-101 | 6.4 | <MDL - 464.5 | NR |
| PCB-118 | 5.9 | <MDL - 503.8 | NR |
| PCB-153 | 10.2 | <MDL - 807.3 | NR |
| PCB-138 | 15.5 | <MDL - 1,797 | NR |
| PCB-180 | 4.3 | <MDL - 459.4 | NR |
| Phenolics | |||
| 2,4,6-TBP | 77.5 | <MDL - 46,210 | 46.1 |
| BPA | 84.1 | <MDL - 168,000 | 3,810 |
| Triclocarban | 46.7 | <MDL - 6,236 | NR |
| Triclosan | 100.0 | <MDL - 23,620 | 787.1 |
| Parabens | |||
| Butyl paraben | 72.0 | <MDL - 2,728 | 18.4 |
| Ethyl paraben | 72.5 | <MDL - 15,280 | 106.6 |
| Methyl paraben | 92.3 | <MDL - 65,360 | 1,802 |
| Propyl paraben | 99.5 | <MDL - 41,760 | 989.6 |
Descriptive statistics for targeted organic contaminant concentrations by chemical class for n=188 samples. Detection frequency across these dust extracts is provided for all chemicals, the range of concentrations (MDL = method detection limit; this varies based on the concentration of dust able to be collected in each home; as such, the MDL for every chemical is unique for each individual dust sample), and the median concentrations. NR = no reported; for chemicals with <50% detection frequencies.