{
 "_meta": {
  "name": "The Dose Gap 2026",
  "edition": "2026",
  "built": "2026-07-22",
  "url": "https://embrsleep.com/pages/dose-gap",
  "derived_from": {
   "dataset": "Embr Exposure Ledger",
   "version": "1.3",
   "url": "https://embrsleep.com/exposure-ledger"
  },
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "question": "Which compounds already measured in the general population have no published inhalation reference value?",
  "method": "From the Embr Exposure Ledger, every compound with a body-burden record (US NHANES or Canada CHMS) and no inhalation RfC and no residential indoor-air screening level in the EPA RSL Summary Table. Ordered by how many independent presence datasets carry the compound.",
  "what_this_is_not": "Not a ranking of danger, harm or risk. Ranking presence without dose-response is the error Winter & Katz (PMID 21776262) identified in the EWG Dirty Dozen. This ranks the absence of dose-response itself, which is a claim about the evidence, not about the compounds.",
  "caveats": [
   "An oral reference dose may exist where an inhalation one does not; those are counted and shown, because the gap is route-specific rather than total.",
   "Some entries are absent from EPA's table because of speciation rather than genuine absence — the table lists Chromium(VI) and Chromium(III) separately while the Atlas carries a generic chromium page, so 'not in EPA's table' means 'not under this name'.",
   "A missing reference value is not evidence of safety and not evidence of harm. It means no agency has published a number for that route."
  ],
  "counts": {
   "atlas_compounds": 254,
   "measured_in_people": 122,
   "no_inhalation_value": 78,
   "oral_value_exists": 36,
   "absent_from_epa_table": 42
  }
 },
 "compounds": [
  {
   "slug": "chlordane",
   "name": "Chlordane",
   "cas": "57-74-9",
   "presence_spokes": 4,
   "spokes": [
    "air",
    "body",
    "regulatory",
    "releases"
   ],
   "matrix": null,
   "analyte": "oxychlordane",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "chromium",
   "name": "Chromium",
   "cas": "7440-47-3",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "commerce",
    "regulatory",
    "releases",
    "smoke"
   ],
   "matrix": "blood",
   "analyte": "Blood Chromium (2015 - 2018)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "fluoranthene",
   "name": "Fluoranthene",
   "cas": "206-44-0",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "regulatory",
    "releases",
    "smoke"
   ],
   "matrix": null,
   "analyte": "3-hydroxyfluoranthene",
   "oral_rfd_mg_kg_day": 0.04,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "fluorene",
   "name": "Fluorene",
   "cas": "86-73-7",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "regulatory",
    "releases",
    "smoke"
   ],
   "matrix": "Urine",
   "analyte": "2-Hydroxyfluorene",
   "oral_rfd_mg_kg_day": 0.04,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "genx",
   "name": "GenX (HFPO-DA)",
   "cas": "13252-13-6",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "environment",
    "regulatory",
    "releases",
    "remediation"
   ],
   "matrix": "serum",
   "analyte": "Serum GenX (2,3,3,3-tetrafluoro-2-(1,1,2,2,3,3,3-heptafluoropropoxy)-propanoic acid (HFPO-DA)) (2017 - 2018)",
   "oral_rfd_mg_kg_day": 3e-06,
   "oral_rfd_source": null,
   "in_epa_table": true
  },
  {
   "slug": "pfbs",
   "name": "Perfluorobutane sulfonate",
   "cas": "375-73-5",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "dose",
    "environment",
    "regulatory",
    "releases"
   ],
   "matrix": "serum",
   "analyte": "Serum Perfluorobutane sulfonic acid (PFBS) (2011 - 2014)",
   "oral_rfd_mg_kg_day": 0.0003,
   "oral_rfd_source": "EPA PPRTV",
   "in_epa_table": true
  },
  {
   "slug": "pfda",
   "name": "Perfluorodecanoic acid",
   "cas": "335-76-2",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "dose",
    "environment",
    "regulatory",
    "releases"
   ],
   "matrix": "serum",
   "analyte": "Serum Perfluorodecanoic acid (PFDA) (2011 - 2018)",
   "oral_rfd_mg_kg_day": 2e-09,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "pfhxs",
   "name": "Perfluorohexane sulfonate",
   "cas": "355-46-4",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "dose",
    "environment",
    "regulatory",
    "releases",
    "remediation"
   ],
   "matrix": "serum",
   "analyte": "Serum Perfluorohexane sulfonic acid (PFHxS) (2011 - 2018)",
   "oral_rfd_mg_kg_day": 2e-05,
   "oral_rfd_source": "ATSDR",
   "in_epa_table": true
  },
  {
   "slug": "pfna",
   "name": "Perfluorononanoic acid",
   "cas": "375-95-1",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "dose",
    "environment",
    "regulatory",
    "releases",
    "remediation"
   ],
   "matrix": "serum",
   "analyte": "Serum Perfluorononanoic acid (PFNA) (2011 - 2018)",
   "oral_rfd_mg_kg_day": 3e-06,
   "oral_rfd_source": "ATSDR",
   "in_epa_table": true
  },
  {
   "slug": "pfos",
   "name": "Perfluorooctane sulfonate",
   "cas": "1763-23-1",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "dose",
    "environment",
    "regulatory",
    "releases",
    "remediation"
   ],
   "matrix": "serum",
   "analyte": "Serum n-Perfluorooctane sulfonic acid (n-PFOS) (2013 - 2018)",
   "oral_rfd_mg_kg_day": 1e-07,
   "oral_rfd_source": null,
   "in_epa_table": true
  },
  {
   "slug": "pfoa",
   "name": "Perfluorooctanoic acid",
   "cas": "335-67-1",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "dose",
    "environment",
    "regulatory",
    "releases",
    "remediation"
   ],
   "matrix": "serum",
   "analyte": "Serum n-Perfluorooctanoic acid (n-PFOA) (2013 - 2018)",
   "oral_rfd_mg_kg_day": 3e-08,
   "oral_rfd_source": null,
   "in_epa_table": true
  },
  {
   "slug": "phenanthrene",
   "name": "Phenanthrene",
   "cas": "85-01-8",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "commerce",
    "regulatory",
    "releases",
    "smoke"
   ],
   "matrix": "Urine",
   "analyte": "1-Hydroxyphenanthrene",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "pyrene",
   "name": "Pyrene",
   "cas": "129-00-0",
   "presence_spokes": 4,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "regulatory",
    "releases",
    "smoke"
   ],
   "matrix": "Urine",
   "analyte": "1-Hydroxypyrene",
   "oral_rfd_mg_kg_day": 0.03,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "4-tert-octylphenol",
   "name": "4-tert-Octylphenol",
   "cas": "140-66-9",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "commerce",
    "regulatory",
    "releases"
   ],
   "matrix": "urine",
   "analyte": "Urinary 4-tert-Octylphenol (2005 - 2010)‡",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "atrazine",
   "name": "Atrazine",
   "cas": "1912-24-9",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "dose",
    "regulatory",
    "releases"
   ],
   "matrix": "urine",
   "analyte": "Urinary Atrazine (2007 - 2008)‡",
   "oral_rfd_mg_kg_day": 0.003,
   "oral_rfd_source": "ATSDR",
   "in_epa_table": true
  },
  {
   "slug": "bbp",
   "name": "Benzyl butyl phthalate",
   "cas": "85-68-7",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "regulatory",
    "releases",
    "remediation"
   ],
   "matrix": "Urine",
   "analyte": "Monobenzyl phthalate (MBzP)",
   "oral_rfd_mg_kg_day": 0.2,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "bpa",
   "name": "Bisphenol A",
   "cas": "80-05-7",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "regulatory",
    "releases"
   ],
   "matrix": "urine",
   "analyte": "Urinary Bisphenol A (2011 - 2016)†",
   "oral_rfd_mg_kg_day": 0.05,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "copper",
   "name": "Copper",
   "cas": "7440-50-8",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "releases",
    "remediation",
    "smoke"
   ],
   "matrix": "serum",
   "analyte": "Serum Copper (2011 - 2016)",
   "oral_rfd_mg_kg_day": 0.04,
   "oral_rfd_source": "HEAST",
   "in_epa_table": true
  },
  {
   "slug": "dnop",
   "name": "Di-n-octyl phthalate",
   "cas": "117-84-0",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "regulatory",
    "releases"
   ],
   "matrix": null,
   "analyte": "mono-n-octyl phthalate (MOP)",
   "oral_rfd_mg_kg_day": 0.01,
   "oral_rfd_source": "EPA PPRTV",
   "in_epa_table": true
  },
  {
   "slug": "dbp",
   "name": "Dibutyl phthalate",
   "cas": "84-74-2",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "regulatory",
    "releases",
    "remediation"
   ],
   "matrix": "Urine",
   "analyte": "Mono-3-hydroxy-n-butyl phthalate (3OH-MBP)",
   "oral_rfd_mg_kg_day": 0.1,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "nicotine",
   "name": "Nicotine",
   "cas": "54-11-5",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "regulatory",
    "smoke"
   ],
   "matrix": "urine",
   "analyte": "Urinary Total Nicotine in Smokers (2013 - 2018)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "nitrate",
   "name": "Nitrate",
   "cas": "14797-55-8",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "dose",
    "releases",
    "remediation",
    "smoke"
   ],
   "matrix": "urine",
   "analyte": "Urinary Perchlorate (2011 - 2018)†",
   "oral_rfd_mg_kg_day": 1.6,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "pfba",
   "name": "Perfluorobutanoic acid",
   "cas": "375-22-4",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "dose",
    "environment",
    "releases",
    "remediation"
   ],
   "matrix": "urine",
   "analyte": "Urinary Perfluorobutanoic acid (PFBA) (2013 - 2014)",
   "oral_rfd_mg_kg_day": 0.001,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "pfhpa",
   "name": "Perfluoroheptanoic acid",
   "cas": "375-85-9",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "environment",
    "regulatory"
   ],
   "matrix": "serum",
   "analyte": "Serum Perfluoroheptanoic acid (PFHpA) (2011 - 2014)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "pfhxa",
   "name": "Perfluorohexanoic acid",
   "cas": "307-24-4",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "dose",
    "environment",
    "releases",
    "remediation"
   ],
   "matrix": "serum",
   "analyte": "Serum Perfluorohexanoic acid (PFHxA) (2017 - 2018)",
   "oral_rfd_mg_kg_day": 0.0005,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "propoxur",
   "name": "Propoxur (Baygon)",
   "cas": "114-26-1",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "dose",
    "regulatory",
    "releases"
   ],
   "matrix": null,
   "analyte": "2-isopropoxyphenol",
   "oral_rfd_mg_kg_day": 0.004,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "short-chain-chlorinated-paraffins",
   "name": "Short-chain chlorinated paraffins",
   "cas": "85535-84-8",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "regulatory",
    "releases"
   ],
   "matrix": null,
   "analyte": "C10Cl6 congeners",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "silver-nanoparticles",
   "name": "Silver nanoparticles",
   "cas": "7440-22-4",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "releases",
    "smoke"
   ],
   "matrix": null,
   "analyte": "silver",
   "oral_rfd_mg_kg_day": 0.005,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "tdcpp",
   "name": "TDCPP (chlorinated tris)",
   "cas": "13674-87-8",
   "presence_spokes": 3,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "regulatory",
    "releases",
    "remediation"
   ],
   "matrix": null,
   "analyte": "bis(1,3-dichloro-2-propyl) phosphate (BDCPP)",
   "oral_rfd_mg_kg_day": 0.02,
   "oral_rfd_source": "ATSDR",
   "in_epa_table": true
  },
  {
   "slug": "2-4-d",
   "name": "2,4-Dichlorophenoxyacetic acid",
   "cas": "94-75-7",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "releases"
   ],
   "matrix": "urine",
   "analyte": "Urinary 2,4-Dichlorophenoxyacetic acid (2,4-D) (2011 - 2016)†",
   "oral_rfd_mg_kg_day": 0.01,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "alpha-pinene",
   "name": "Alpha-pinene",
   "cas": "80-56-8",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "smoke"
   ],
   "matrix": "",
   "analyte": "Serum α-Pinene (2013 - 2014)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "tbph",
   "name": "Bis(2-ethylhexyl) tetrabromophthalate",
   "cas": "26040-51-7",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "regulatory"
   ],
   "matrix": null,
   "analyte": "bis(2-ethylhexyl) tetrabromophthalate (TBPH)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "bpaf",
   "name": "Bisphenol AF",
   "cas": "1478-61-1",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "regulatory"
   ],
   "matrix": null,
   "analyte": "bisphenol AF (BPAF)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "bps",
   "name": "Bisphenol S",
   "cas": "80-09-1",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "regulatory"
   ],
   "matrix": null,
   "analyte": "bisphenol S (BPS)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "butylparaben",
   "name": "Butylparaben",
   "cas": "94-26-8",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "regulatory"
   ],
   "matrix": "urine",
   "analyte": "Urinary Butyl paraben (2011 - 2016)†",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "chlorpyrifos",
   "name": "Chlorpyrifos",
   "cas": "2921-88-2",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "dose",
    "regulatory"
   ],
   "matrix": "Urine",
   "analyte": "3,5,6-Trichloro-2-pyridinol (TCPy)",
   "oral_rfd_mg_kg_day": 0.001,
   "oral_rfd_source": "ATSDR",
   "in_epa_table": true
  },
  {
   "slug": "cotinine",
   "name": "Cotinine",
   "cas": "486-56-6",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "smoke"
   ],
   "matrix": "serum",
   "analyte": "Serum Cotinine in Non-smokers (2011 - 2018)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "decanal",
   "name": "Decanal",
   "cas": "112-31-2",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "smoke"
   ],
   "matrix": "serum",
   "analyte": "Serum Decanaldehyde (2013 - 2014)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "diazinon",
   "name": "Diazinon",
   "cas": "333-41-5",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "dose",
    "releases"
   ],
   "matrix": null,
   "analyte": "2-Isopropyl-4-methyl-6-hydroxypyrimidine (IMPY)",
   "oral_rfd_mg_kg_day": 0.0007,
   "oral_rfd_source": "ATSDR",
   "in_epa_table": true
  },
  {
   "slug": "dep",
   "name": "Diethyl phthalate",
   "cas": "84-66-2",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "releases",
    "remediation"
   ],
   "matrix": "Urine",
   "analyte": "Monoethyl phthalate (MEP)",
   "oral_rfd_mg_kg_day": 0.8,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "dibp",
   "name": "Diisobutyl phthalate",
   "cas": "84-69-5",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "regulatory"
   ],
   "matrix": null,
   "analyte": "mono-isobutyl phthalate (MIBP)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "didp",
   "name": "Diisodecyl phthalate",
   "cas": "26761-40-0",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "regulatory"
   ],
   "matrix": null,
   "analyte": "monocarboxyisononyl phthalate (MCINP)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "dinp",
   "name": "Diisononyl phthalate",
   "cas": "28553-12-0",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "regulatory",
    "remediation"
   ],
   "matrix": "Urine",
   "analyte": "Mono(carboxyisooctyl) phthalate (MCiOP)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "dmp",
   "name": "Dimethyl phthalate",
   "cas": "131-11-3",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "releases"
   ],
   "matrix": "Urine",
   "analyte": "Monomethyl phthalate (MMP)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "endrin",
   "name": "Endrin",
   "cas": "72-20-8",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "dose",
    "regulatory"
   ],
   "matrix": "serum",
   "analyte": "Serum Endrin (lipid adjusted) (2001 - 2004)",
   "oral_rfd_mg_kg_day": 0.0003,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "hhcb",
   "name": "Galaxolide (HHCB)",
   "cas": "1222-05-5",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "releases"
   ],
   "matrix": null,
   "analyte": "galaxolide (1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran [HHCB])",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "glyphosate",
   "name": "Glyphosate",
   "cas": "1071-83-6",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "dose",
    "regulatory"
   ],
   "matrix": "urine",
   "analyte": "Urinary Glyphosate (N-(Phosphonomethyl)glycine) (2013 - 2018)†",
   "oral_rfd_mg_kg_day": 0.1,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "hexanal",
   "name": "Hexanal",
   "cas": "66-25-1",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "smoke"
   ],
   "matrix": "serum",
   "analyte": "Serum Hexanaldehyde (2013 - 2014)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "lithium",
   "name": "Lithium",
   "cas": "7439-93-2",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "environment"
   ],
   "matrix": null,
   "analyte": "lithium",
   "oral_rfd_mg_kg_day": 0.002,
   "oral_rfd_source": "EPA PPRTV",
   "in_epa_table": true
  },
  {
   "slug": "methylparaben",
   "name": "Methylparaben",
   "cas": "99-76-3",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "smoke"
   ],
   "matrix": "urine",
   "analyte": "Urinary Methyl paraben (2011 - 2016)†",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "nnn",
   "name": "N-Nitrosonornicotine",
   "cas": "16543-55-8",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "regulatory"
   ],
   "matrix": "urine",
   "analyte": "Urinary N'-Nitrosonornicotine (NNN) in Non-smokers (2013 - 2014)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "nonanal",
   "name": "Nonanal (Aldehyde C-9)",
   "cas": "124-19-6",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "smoke"
   ],
   "matrix": "serum",
   "analyte": "Serum Nonanaldehyde (2013 - 2014)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "octanal",
   "name": "Octanal",
   "cas": "124-13-0",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "smoke"
   ],
   "matrix": "serum",
   "analyte": "Serum Octanaldehyde (2013 - 2014)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "p-phenylenediamine",
   "name": "p-Phenylenediamine",
   "cas": "106-50-3",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "releases"
   ],
   "matrix": "",
   "analyte": "Urinary p-Phenylenediamine (PPDA) (2015 - 2016)",
   "oral_rfd_mg_kg_day": 0.001,
   "oral_rfd_source": "PPRTV appendix",
   "in_epa_table": true
  },
  {
   "slug": "pfpea",
   "name": "Perfluoropentanoic acid",
   "cas": "2706-90-3",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "environment",
    "remediation"
   ],
   "matrix": "urine",
   "analyte": "Urinary Perfluoropentanoic acid (PFPeA) (2013 - 2014)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "tphp",
   "name": "Triphenyl phosphate",
   "cas": "115-86-6",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "commerce",
    "regulatory"
   ],
   "matrix": null,
   "analyte": "diphenyl phosphate (DPHP)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "tcep",
   "name": "Tris(2-chloroethyl) phosphate (TCEP)",
   "cas": "115-96-8",
   "presence_spokes": 2,
   "spokes": [
    "body",
    "dose",
    "regulatory"
   ],
   "matrix": null,
   "analyte": "bis-2-(chloroethyl) phosphate (BCEP)",
   "oral_rfd_mg_kg_day": 0.007,
   "oral_rfd_source": "EPA PPRTV",
   "in_epa_table": true
  },
  {
   "slug": "1-ohp",
   "name": "1-Hydroxypyrene",
   "cas": "5315-79-7",
   "presence_spokes": 1,
   "spokes": [
    "body"
   ],
   "matrix": "urine",
   "analyte": "Urinary 1-Hydroxypyrene (2011 - 2016)†",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "tbb",
   "name": "2-Ethylhexyl-2,3,4,5-tetrabromobenzoate",
   "cas": "183658-27-7",
   "presence_spokes": 1,
   "spokes": [
    "body",
    "commerce"
   ],
   "matrix": null,
   "analyte": "2-ethyl-1-hexyl 2,3,4,5-tetrabromobenzoate (TBB)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "nnal",
   "name": "4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanol",
   "cas": "76014-81-8",
   "presence_spokes": 1,
   "spokes": [
    "body"
   ],
   "matrix": "urine",
   "analyte": "Urinary Total 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanol) (NNAL) in Non-smokers (2011 - 2014)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "bpf",
   "name": "Bisphenol F",
   "cas": "620-92-8",
   "presence_spokes": 1,
   "spokes": [
    "body"
   ],
   "matrix": null,
   "analyte": "bisphenol F (BPF)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "deet",
   "name": "DEET (N,N-Diethyl-meta-toluamide)",
   "cas": "134-62-3",
   "presence_spokes": 1,
   "spokes": [
    "body"
   ],
   "matrix": "urine",
   "analyte": "Urinary N,N-diethyl-meta-toluamide (DEET) (2011 - 2014)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "deltamethrin",
   "name": "Deltamethrin",
   "cas": "52918-63-5",
   "presence_spokes": 1,
   "spokes": [
    "body"
   ],
   "matrix": null,
   "analyte": "cis-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropane-1-carboxylic acid (cis-DBCA)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "ethylparaben",
   "name": "Ethylparaben",
   "cas": "120-47-8",
   "presence_spokes": 1,
   "spokes": [
    "body",
    "commerce"
   ],
   "matrix": "urine",
   "analyte": "Urinary Ethyl paraben (2011 - 2016)†",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "imidacloprid",
   "name": "Imidacloprid",
   "cas": "138261-41-3",
   "presence_spokes": 1,
   "spokes": [
    "body"
   ],
   "matrix": "urine",
   "analyte": "Urinary Imidacloprid (2015 - 2016)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "mehp",
   "name": "Mono(2-ethylhexyl) phthalate",
   "cas": "4376-20-9",
   "presence_spokes": 1,
   "spokes": [
    "body"
   ],
   "matrix": "urine",
   "analyte": "Urinary Mono-2-ethylhexyl phthalate (MEHP) (2011 - 2018)†",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "oxybenzone",
   "name": "Oxybenzone (Benzophenone-3)",
   "cas": "131-57-7",
   "presence_spokes": 1,
   "spokes": [
    "body",
    "commerce"
   ],
   "matrix": "urine",
   "analyte": "Urinary Benzophenone-3 (2011 - 2016)†",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "bde-99",
   "name": "Pentabromodiphenyl ether",
   "cas": "60348-60-9",
   "presence_spokes": 1,
   "spokes": [
    "body",
    "dose"
   ],
   "matrix": null,
   "analyte": "PBDE 99 (2,2',4,4',5-pentabromodiphenyl ether)",
   "oral_rfd_mg_kg_day": 0.0001,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "bde-100",
   "name": "Pentabromodiphenyl ether (BDE-100)",
   "cas": "189084-64-8",
   "presence_spokes": 1,
   "spokes": [
    "body"
   ],
   "matrix": "serum",
   "analyte": "Serum 2,2’,4,4’,6-Pentabromodiphenyl ether (BDE 100) (lipid adjusted) (2003 - 2004)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "pfosa",
   "name": "Perfluorooctanesulfonamide",
   "cas": "754-91-6",
   "presence_spokes": 1,
   "spokes": [
    "body"
   ],
   "matrix": "serum",
   "analyte": "Serum Perfluorooctane sulfonamide (FOSA) (Special Sample of Serum PFAS in Children, 2013-2014)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "propylparaben",
   "name": "Propylparaben",
   "cas": "94-13-3",
   "presence_spokes": 1,
   "spokes": [
    "body",
    "commerce"
   ],
   "matrix": "urine",
   "analyte": "Urinary n-Propyl paraben (2011 - 2016)†",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "bde-47",
   "name": "Tetrabromodiphenyl ether",
   "cas": "5436-43-1",
   "presence_spokes": 1,
   "spokes": [
    "body",
    "dose"
   ],
   "matrix": "serum",
   "analyte": "Serum 2,2’,4,4’-Tetrabromodiphenyl ether (BDE 47) (lipid adjusted) (2003 - 2004)",
   "oral_rfd_mg_kg_day": 0.0001,
   "oral_rfd_source": "EPA IRIS",
   "in_epa_table": true
  },
  {
   "slug": "tributyl-phosphate",
   "name": "Tributyl phosphate",
   "cas": "126-73-8",
   "presence_spokes": 1,
   "spokes": [
    "body",
    "commerce",
    "dose"
   ],
   "matrix": null,
   "analyte": "dibutylphosphate (DBP)",
   "oral_rfd_mg_kg_day": 0.01,
   "oral_rfd_source": "EPA PPRTV",
   "in_epa_table": true
  },
  {
   "slug": "triclocarban",
   "name": "Triclocarban",
   "cas": "101-20-2",
   "presence_spokes": 1,
   "spokes": [
    "body"
   ],
   "matrix": "urine",
   "analyte": "Urinary Triclocarban (2013 - 2016)†",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "triclosan",
   "name": "Triclosan",
   "cas": "3380-34-5",
   "presence_spokes": 1,
   "spokes": [
    "body"
   ],
   "matrix": "urine",
   "analyte": "Urinary Triclosan (2011 - 2016)†",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "tricresyl-phosphate",
   "name": "Tricresyl phosphate (TCP)",
   "cas": "1330-78-5",
   "presence_spokes": 1,
   "spokes": [
    "body",
    "commerce",
    "dose"
   ],
   "matrix": null,
   "analyte": "di-p-tolyl phosphate (DpCP)",
   "oral_rfd_mg_kg_day": 0.02,
   "oral_rfd_source": "ATSDR",
   "in_epa_table": true
  },
  {
   "slug": "tboep",
   "name": "Tris(2-butoxyethyl) phosphate",
   "cas": "78-51-3",
   "presence_spokes": 1,
   "spokes": [
    "body",
    "commerce"
   ],
   "matrix": null,
   "analyte": "bis-2(butoxyethyl) phosphate (BBOEP)",
   "oral_rfd_mg_kg_day": null,
   "oral_rfd_source": null,
   "in_epa_table": false
  },
  {
   "slug": "tcpp",
   "name": "Tris(chloroisopropyl) phosphate",
   "cas": "13674-84-5",
   "presence_spokes": 1,
   "spokes": [
    "body",
    "commerce",
    "dose",
    "remediation"
   ],
   "matrix": null,
   "analyte": "bis(2-chloropropyl) phosphate (BCPP)",
   "oral_rfd_mg_kg_day": 0.01,
   "oral_rfd_source": "PPRTV appendix",
   "in_epa_table": true
  }
 ]
}