Table 1.
Contaminants identified in human breast milk by non-targeted analysis. Det. Freq. = Detection Frequency.
| Name | CAS | Regulatory Status | Additional Isomers | ID Category | Breast Milk Sample Det. Freq. (Out of 3) | Lipid Fraction 1 Det. Freq. (Out of 3 | Lipid Fraction 2 Det. Freq. (Out of 3 | Water Fraction Det. Freq. (Out of 3) |
|---|---|---|---|---|---|---|---|---|
| Halogenated Compounds | ||||||||
| 1-Chloro-3-dimethylaminobenzene | 6848-13-1 | Regulated | 1 [authentic MS RT] | 3 | 0 | 2 | 1 | |
| 4-Chloro-N-methylaniline | 932-96-7 | Regulated | 1 | 1 [authentic MS RT] | 3 | 3 | 2 | 2 |
| N-(4-Chlorophenyl)formamide | 2617-79-0 | Not regulated | 1 [authentic MS RT] | 3 | 2 | 1 | 3 | |
| p-Chlorophenyl methyl sulfoxide | 934-73-6 | Regulated | 3 [reference database MS] | 3 | 0 | 3 | 0 | |
| 1-(4-Chlorophenyl)pyrrole | 5044-38-2 | Not regulated | 1 [authentic MS RT] | 2 | 1 | 1 | 1 | |
| 4,4′-Dichlorodiphenylether | 2444-89-5 | Regulated | 1 [authentic MS RT] | 2 | 1 | 1 | 0 | |
| 4,4′-Dichlorodiphenylsulphide | 5181-10-2 | Regulated | 1 [authentic MS RT] | 2 | 1 | 2 | 1 | |
| 4-Chlorodiphenyl ether | 7005-72-3 | Regulated | 1 [authentic MS RT] | 2 | 1 | 1 | 1 | |
| 4-Chlorothioanisole | 123-09-1 | Regulated | 1 [authentic MS RT] | 2 | 1 | 2 | 1 | |
| HCB | 118-74-1 | Regulated | 1 [authentic MS RT] | 2 | 2 | 0 | 0 | |
| beta-HCH | 319-85-7 | Regulated | 1 [authentic MS RT] | 1 | 1 | 0 | 1 | |
| BDE-47 | 5436-43-1 | Regulated | 1 [authentic MS RT] | 1 | 1 | 0 | 0 | |
| PCB-153 | 35065-27-1 | Regulated | 1 [authentic MS RT] | 1 | 1 | 0 | 0 | |
| 3’-Chloroacetanilide | 588-07-8 | Regulated | 1 [authentic MS RT] | 1 | 1 | 0 | 0 | |
| 4-Chlorobutyrophenone | 939-52-6 | Regulated | 1 [authentic MS RT] | 1 | 0 | 1 | 0 | |
| 7-Chloroquinaldine | 4965-33-7 | Regulated | 1 [authentic MS RT] | 1 | 0 | 1 | 0 | |
| p,p′-DDE | 72-55-9 | Regulated | 1 [authentic MS RT] | 1 | 1 | 0 | 0 | |
| 2-Chloro-N,N-dimethylaniline | 698-01-1 | Not regulated | 2 [authentic MS] | 1 | 1 | 0 | 0 | |
| p,p′-DDT | 50-29-3 | Regulated | 1 [authentic MS RT] | 1 | 1 | 0 | 0 | |
| 3-Chloro-2,6-dimethylpyridine | 2405-06-3 | Not regulated | 1 | 3 [reference database MS] | 1 | 1 | 0 | 0 |
| 4-Formylphenyl 3-chloropropanoate | NA | Not regulated | 3 [reference database MS] | 1 | 0 | 0 | 1 | |
| Thiophene-2-carbonitrile, 5-tert-butyl-3-(4-chlorobenzylidenamino)- | NA | Not regulated | 3 [reference database MS] | 1 | 0 | 1 | 0 | |
| Non-Halogenated Aromatic or Cyclic Compounds | ||||||||
| 1,3-Diacetylbenzene | 6781-42-6 | Regulated | 1 | 1 [authentic MS RT] | 3 | 3 | 2 | 1 |
| 2,4-Di-tert-butylphenol | 96-76-4 | Regulated | 1 | 1 [authentic MS RT] | 3 | 1 | 1 | 1 |
| 2-Cyanobenzoic acid | 3839-22-3 | Not regulated | 1 [authentic MS RT] | 3 | 1 | 2 | 0 | |
| 2-Hydroxymethylbenzoic acid | 612-20-4 | Regulated | 1 [authentic MS RT] | 3 | 2 | 2 | 1 | |
| 2-Methylindole | 95-20-5 | Regulated | 1 [authentic MS RT] | 3 | 2 | 0 | 3 | |
| 4-Methylbiphenyl | 644-08-6 | Regulated | 2 | 1 [authentic MS RT] | 3 | 3 | 2 | 0 |
| Benzophenone | 119-61-9 | Regulated | 1 [authentic MS RT] | 3 | 2 | 2 | 3 | |
| Benzyl butyl phthalate | 85-68-7 | Regulated | 1 [authentic MS RT] | 3 | 3 | 0 | 1 | |
| Ethyl 4-ethoxybenzoate | 23676-09-7 | Regulated | 1 [authentic MS RT] | 3 | 2 | 3 | 2 | |
| Isatin | 91-56-5 | Regulated | 1 [authentic MS RT] | 3 | 0 | 0 | 3 | |
| 2,4-Dimethylpropiophenone | 35031-55-1 | Regulated | 2 [authentic MS] | 3 | 1 | 1 | 1 | |
| 1,1,6-Trimethyltetralin | 475-03-6 | Regulated | 3 [reference database MS] | 3 | 3 | 0 | 0 | |
| 5H-1-Pyrindine | 270-91-7 | Not regulated | 3 [reference database MS] | 3 | 3 | 0 | 3 | |
| 5-Methyltetralin | 2809-64-5 | Not regulated | 1 | 3 [reference database MS] | 3 | 2 | 3 | 0 |
| N-(2-acetylphenyl)formamide | 5257-06-7 | Regulated | 3 [reference database MS] | 3 | 0 | 0 | 3 | |
| Phenylamide | 55-21-0 | Regulated | 1 [authentic MS RT] | 3 | 0 | 0 | 3 | |
| 1,7-Dimethylnaphthalene | 575-37-1 | Regulated | 2 | 1 [authentic MS RT] | 2 | 2 | 2 | 0 |
| 1,4,5-Trimethylnaphthalene | 2131-41-1 | Regulated | 3 | 1 [authentic MS RT] | 1 | 0 | 1 | 0 |