Health & Environmental Research Online (HERO)


Projects in HERO

HERO uses the term "Project" to define a collection of references used to support a report or document that the EPA is developing. The project pages listed below are further grouped based on the EPA programs they support. To learn more about navigating the references that are included on the project pages explore Using HERO.

Ammonia
Ammonia, Oral - Problem Formulation
tert-Amyl ethyl ether (TAEE) (919-94-8)
tert-Amyl methyl ether (TAME) (994-05-8)
Arsenic (Inorganic)
Arsenic MOA
Arsenic Susceptibility
Asbestos (1332-21-4)
BBP (Butyl benzyl phthalate)
Benzo(a)pyrene (BaP) (50-32-8)
Biphenyl (92-52-4)
n-Butanol (71-36-3)
tert-Butanol (75-65-0)
Chloroform 2018 Update (67-66-3)
Chloroform Combined (current) (67-66-3)
Chloroprene (126-99-8)
Chloroprene Request for Correction (RFC #21005 - 2021)
Chromium VI
Cobalt (7440-48-4)
DCM (Dichloromethane) (Final, 2011)
1,2-Dibromo-3-chloropropane (96-12-8)
Dibutyl Phthalate (DBP) (84-74-2)
Diethyl phthalate (DEP) (84-66-2)
Diisobutyl Phthalate (DIBP) Final (84-69-5)
Diisononyl Phthalate (DINP)
1,4-Dioxane - with inhalation update
Dioxin (2012 Project Page for Final Report) (1746-01-6)
ETBE (637-92-3)
Ethylbenzene (100-41-4)
Formaldehyde [archived] (50-00-0)
Hexabromocyclododecane (HBCD) (25637-99-4)
Hexachloroethane (HCE) (Final, 2011)
Inorganic Arsenic (7440-38-2) [Final 2025]
Inorganic Mercury Salts (2)
IRIS Formaldehyde (Inhalation) [Final 2024]
Libby Amphibole Asbestos (Draft, 2011)
Methanol (Non-Cancer) (67-56-1)
Methylmercury (22967-92-6)
Molybdenum (7439-98-7)
Naphthalene (91-20-3)
Nitrate/Nitrite
PCBs (1336-36-3)
Phthalates – Targeted Search for Epidemiological Studies
PM ISA
RDX (121-82-4)
SR Automation
Tetrachloroethylene (Perc) (Final, 2012)
Trichloroacetic acid (TCA) (Final, 2011)
Trichloroethylene (TCE) (Final, 2011)
Trimethylbenzenes (Interagency Science Discussion Draft)
Trimethylbenzenes (TMB)
Uranium
Uranium Toxicological Review (7440-61-1)
Vanadium Compounds - Oral
Vanadium Inhalation
Vanadium Pentoxide (Draft, 2011)
Completed TSCA Risk Evaluations
OPPT_1,4-Dioxane_A. Summary
OPPT_1,4-Dioxane_B. Ecological Toxicology
OPPT_1,4-Dioxane_C. Engineering
OPPT_1,4-Dioxane_D. Exposure
OPPT_1,4-Dioxane_E. Fate
OPPT_1,4-Dioxane_F. Human Health
OPPT_1-Bromopropane (1-BP)_A. Summary
OPPT_1-Bromopropane (1-BP)_B. Ecological Toxicology
OPPT_1-Bromopropane (1-BP)_C. Engineering
OPPT_1-Bromopropane (1-BP)_D. Exposure
OPPT_1-Bromopropane (1-BP)_E. Fate
OPPT_1-Bromopropane (1-BP)_F. Human Health
OPPT_Asbestos, Part I: Chrysotile_A. Summary
OPPT_Asbestos, Part I: Chrysotile_B. Ecological Toxicology
OPPT_Asbestos, Part I: Chrysotile_C. Engineering
OPPT_Asbestos, Part I: Chrysotile_D. Exposure
OPPT_Asbestos, Part I: Chrysotile_E. Fate
OPPT_Asbestos, Part I: Chrysotile_F. Human Health
OPPT_Asbestos, Part I: Chrysotile_Supplemental Search
OPPT_Carbon Tetrachloride_A. Summary
OPPT_Carbon Tetrachloride_B. Ecological Toxicology
OPPT_Carbon Tetrachloride_C. Engineering
OPPT_Carbon Tetrachloride_D. Exposure
OPPT_Carbon Tetrachloride_E. Fate
OPPT_Carbon Tetrachloride_F. Human Health
OPPT_Cyclic Aliphatic Bromine Cluster (HBCD)_A. Summary
OPPT_Cyclic Aliphatic Bromine Cluster (HBCD)_B. Ecological Toxicology
OPPT_Cyclic Aliphatic Bromine Cluster (HBCD)_C. Engineering
OPPT_Cyclic Aliphatic Bromine Cluster (HBCD)_D. Exposure
OPPT_Cyclic Aliphatic Bromine Cluster (HBCD)_E. Fate
OPPT_Cyclic Aliphatic Bromine Cluster (HBCD)_F. Human Health
OPPT_Methylene Chloride_A. Summary
OPPT_Methylene Chloride_B. Ecological Toxicology
OPPT_Methylene Chloride_C. Engineering
OPPT_Methylene Chloride_D. Exposure
OPPT_Methylene Chloride_E. Fate
OPPT_Methylene Chloride_F. Human Health
OPPT_N-methylpyrrolidone (NMP)_A. Summary
OPPT_N-methylpyrrolidone (NMP)_B. Ecological Toxicology
OPPT_N-methylpyrrolidone (NMP)_C. Engineering
OPPT_N-methylpyrrolidone (NMP)_D. Exposure
OPPT_N-methylpyrrolidone (NMP)_E. Fate
OPPT_N-methylpyrrolidone (NMP)_F. Human Health
OPPT_Perchloroethylene (Perc)_A. Summary
OPPT_Perchloroethylene (Perc)_B. Ecological Toxicology
OPPT_Perchloroethylene (Perc)_C. Engineering
OPPT_Perchloroethylene (Perc)_D. Exposure
OPPT_Perchloroethylene (Perc)_E. Fate
OPPT_Perchloroethylene (Perc)_F. Human Health
OPPT_Pigment Violet 29 (PV29)_A. Summary
OPPT_Pigment Violet 29 (PV29)_B. Ecological Toxicology
OPPT_Pigment Violet 29 (PV29)_C. Engineering
OPPT_Pigment Violet 29 (PV29)_D. Exposure
OPPT_Pigment Violet 29 (PV29)_E. Fate
OPPT_Trichloroethylene (TCE)_A. Summary
OPPT_Trichloroethylene (TCE)_B. Ecological Toxicology
OPPT_Trichloroethylene (TCE)_C. Engineering
OPPT_Trichloroethylene (TCE)_D. Exposure
OPPT_Trichloroethylene (TCE)_E. Fate
OPPT_Trichloroethylene (TCE)_F. Human Health
GenX Chemicals (CASRN 13252-13-6 and CASRN 62037-80-3)
PFOA (335-67-1) and PFOS (1763-23-1)
PFOA and PFOS OW MCLG Approaches