Is bromoform safe in drinking water?

Under the app's default Cautious lens, bromoform in drinking water rates Swap: the app would put this near the top of your swap plan. 3 sourced concerns count (suspected carcinogen, consensus tier; metabolic, consensus tier; endocrine, emerging tier). This is research with sources, not medical advice.

What do the Clean, Low, Watch and Swap levels mean?

They are cut from a continuous concern level the app computes from the sourced claims that the chosen evidence lens shows: each claim counts its concern class, tier weight, confidence and dose relevance, combined worst-first with a decay so one serious finding outweighs many small ones, then scaled by how much of the substance reaches you in this use. Clean is below 0.35, Low below 1.1, Watch below 2.0 and Swap above that, on a 0 to 3 scale.

Is Bromoform safe when breathed in?

Q: Is bromoform safe when breathed in?

Under the app's default Cautious lens, bromoform when breathed in rates Swap: the app would put this near the top of your swap plan. 3 sourced concerns count (suspected carcinogen, consensus tier; irritant · allergen, consensus tier; metabolic, consensus tier). 1 finding count in its favour. This is research with sources, not medical advice.

Water2 uses researched7 sourced claims

Where it turns up: disinfection byproduct, regulated contaminant. Detox My Life researched bromoform under 2 different uses, because the same substance means something different in each. Every claim below carries its evidence tier, how sure the research is that it applies here, and the sources it cites. The level is computed by the app's own deterministic engine, so the page says exactly what the app would.

Level by use and lens

Use	Mainstream	Cautious (default)	Based	Concerns · favour · fringe
Breathed in	Swap	Swap	Swap	3 · 1
In drinking water	Swap	Swap	Swap	3 · 0

Mainstream shows consensus claims only; Cautious adds emerging research; Based adds fringe claims, labelled as such. The last column counts, under Cautious, the sourced concerns, the findings in its favour and the fringe claims Based would add.

Safer swaps: the app's swap catalog has no entry tied to this ingredient yet. When you scan a product that contains it, the app suggests cleaner alternative types for that product; the swap categories list what the catalog covers today.

Breathed in Swap

Under the default Cautious lens bromoform when breathed in rates Swap: the app would put this near the top of your swap plan. Mainstream (consensus only) rates it Swap; Based (adds the fringe) rates it Swap. Researched 2026-09-03.

Sourced concerns (3)

ConsensusSuspected carcinogenconfidence 100%

Bromoform is classified by the U.S. Environmental Protection Agency (EPA) as a probable human carcinogen (Group B2) and has shown clear evidence of carcinogenicity in animal studies (rats) by the National Toxicology Program (NTP), causing adenomatous polyps and adenocarcinomas of the large intestine.

Why here: Bromoform can volatilize into the air from chlorinated water during household use (e.g., showering, bathing) or from industrial sources, leading to inhalation exposure.
What would have to be true: Inhalation of bromoform vapor. The EPA provides an inhalation unit risk of 1.1 x 10^-6 per µg/m3.

Sources the engine cites:

RELEVANCE TO PUBLIC HEALTH - Toxicological Profile for Bromoform and Dibromochloromethane — nih.gov (2005) · regulator or public body
BROMOFORM — acgih.org (2007) · regulator or public body
PUBLIC HEALTH STATEMENT - Toxicological Profile for Bromoform and Dibromochloromethane — nih.gov (2005) · regulator or public body
Bromoform & Dibromochloromethane | ToxFAQs™ | ATSDR — cdc.gov (2014) · regulator or public body
1 community or commercial page, not counted here.

ConsensusIrritant · allergenconfidence 100%

Inhalation of bromoform can cause irritation of the respiratory tract, nose, throat, and eyes, leading to symptoms such as coughing, tearing (lachrymation), and salivation.

Why here: Bromoform can volatilize into the air from chlorinated water during household use (e.g., showering, bathing) or from industrial sources, leading to inhalation exposure.
What would have to be true: Inhalation of bromoform vapor. A harmful contamination of the air can be reached quickly upon evaporation of this substance at 20°C.

Sources the engine cites:

BROMOFORM — acgih.org (2007) · regulator or public body
BROMOFORM - CAMEO Chemicals — noaa.gov (1999) · regulator or public body
NIOSH Pocket Guide to Chemical Hazards - Bromoform — cdc.gov (2024) · regulator or public body
1 web article (wikipedia.org), linked in the app.

ConsensusMetabolicconfidence 100%

Inhalation exposure to bromoform can cause damage to the liver and kidneys, which are identified as primary target organs.

Why here: Bromoform can volatilize into the air from chlorinated water during household use (e.g., showering, bathing) or from industrial sources, leading to inhalation exposure.
What would have to be true: Inhalation of bromoform vapor. Animal studies showed liver and kidney injury at concentrations of 24,000 ppb (24 ppm) for 2 months.

Sources the engine cites:

RELEVANCE TO PUBLIC HEALTH - Toxicological Profile for Bromoform and Dibromochloromethane — nih.gov (2005) · regulator or public body
BROMOFORM — acgih.org (2007) · regulator or public body
Bromoform & Dibromochloromethane | ToxFAQs™ | ATSDR — cdc.gov (2014) · regulator or public body
Toxicological Profile For Bromoform And Chlorodibromomethane — epa.gov (1989) · regulator or public body
1 community or commercial page, not counted here.

In its favour (1)

EmergingClearedconfidence 100%

The International Agency for Research on Cancer (IARC) concluded that bromoform is not classifiable as to its carcinogenicity to humans (Group 3), citing inadequate human data and limited animal data.

Why here: Bromoform can volatilize into the air from chlorinated water during household use (e.g., showering, bathing) or from industrial sources, leading to inhalation exposure.
What would have to be true: Inhalation of bromoform vapor.
The other side: The U.S. EPA classifies bromoform as a probable human carcinogen (Group B2), and the NTP found clear evidence of carcinogenicity in animal studies.

Sources the engine cites:

RELEVANCE TO PUBLIC HEALTH - Toxicological Profile for Bromoform and Dibromochloromethane — nih.gov (2005) · regulator or public body
Bromoform & Dibromochloromethane | ToxFAQs™ | ATSDR — cdc.gov (2014) · regulator or public body
1 web article (wikipedia.org), linked in the app.

In drinking water Swap

Under the default Cautious lens bromoform in drinking water rates Swap: the app would put this near the top of your swap plan. Mainstream (consensus only) rates it Swap; Based (adds the fringe) rates it Swap. Researched 2026-09-03.

Sourced concerns (3)

ConsensusSuspected carcinogenconfidence 90%

Long-term exposure to bromoform in drinking water is classified by the US EPA as a probable human carcinogen, linked to increased risks of bladder, colon, and rectal cancers in epidemiological studies, and liver and kidney cancer in animal studies.

Why here: Bromoform is a disinfection byproduct formed when chlorine reacts with organic matter and bromide in drinking water, leading to chronic ingestion exposure.
What would have to be true: Exposure occurs through drinking water, with the EPA regulating total trihalomethanes (TTHM), which include bromoform, to a maximum contaminant level (MCL) of 80 µg/L (ppb), and setting a Maximum Contaminant Level Goal (MCLG) of 0 mg/L for bromoform.
The other side: The International Agency for Research on Cancer (IARC) has classified bromoform as "not classifiable as to human carcinogenicity" (Group 3), indicating insufficient evidence in humans and limited evidence in animals, with some animal studies suggesting tumor formation is secondary to localized cytotoxicity at high doses.

Sources the engine cites:

Bromoform & Dibromochloromethane | Public Health Statement | ATSDR — cdc.gov (2026) · regulator or public body
Disinfection by products Trihalomethanes - WCID No. 17 — wcid17.org (2026) · regulator or public body
POTENTIAL FOR HUMAN EXPOSURE - Toxicological Profile for Bromoform and Dibromochloromethane - NCBI Bookshelf — nih.gov (2026) · regulator or public body
Disinfection Byproducts - EPA | Envirofacts | ICR — epa.gov (2016) · regulator or public body
1 web article (softprowatersystems.com), linked in the app.
4 community or commercial pages, not counted here.

ConsensusMetabolicconfidence 90%

Ingestion of bromoform in drinking water can lead to liver damage, kidney dysfunction, and central nervous system depression, particularly with acute exposure to high concentrations or chronic low-level exposure.

Why here: Bromoform is readily absorbed from the gastrointestinal tract after ingestion of contaminated drinking water and is metabolized in the liver, potentially forming toxic intermediates.
What would have to be true: Exposure occurs through drinking water, with the EPA setting a Maximum Contaminant Level Goal (MCLG) of 0 mg/L for bromoform, recognizing its potential health risks.
The other side: Exposure to low levels of bromoform in drinking water does not appear to seriously affect the brain, liver, or kidneys.

Sources the engine cites:

RELEVANCE TO PUBLIC HEALTH - Toxicological Profile for Bromoform and Dibromochloromethane - NCBI Bookshelf — nih.gov (2026) · regulator or public body
1 web article (softprowatersystems.com), linked in the app.
2 community or commercial pages, not counted here.

EmergingEndocrineconfidence 80%

Prolonged exposure to bromoform in drinking water is suggested by research to contribute to reproductive problems, including reduced fertility and developmental issues in offspring, with pregnant women facing particular risks as bromoform can cross the placental barrier.

Why here: Bromoform is a disinfection byproduct in drinking water, leading to chronic ingestion exposure.
What would have to be true: Exposure occurs through drinking water, with the EPA setting a Maximum Contaminant Level Goal (MCLG) of 0 mg/L for bromoform.
The other side: Other animal studies suggest that typical bromoform exposures do not pose a high risk of affecting the chance of becoming pregnant or harming an unborn baby.

Sources the engine cites:

Disinfection by products Trihalomethanes - WCID No. 17 — wcid17.org (2026) · regulator or public body
POTENTIAL FOR HUMAN EXPOSURE - Toxicological Profile for Bromoform and Dibromochloromethane - NCBI Bookshelf — nih.gov (2026) · regulator or public body
Disinfection Byproducts - EPA | Envirofacts | ICR — epa.gov (2016) · regulator or public body
1 web article (softprowatersystems.com), linked in the app.
3 community or commercial pages, not counted here.

Not researched here

The engine has no dossier for bromoform when cooked with heat, in cold food, as a finishing ingredient, in heated food packaging or other uses. The app researches an ingredient for the use it infers from your product, so a scan fills these in; this page only shows what has already been researched and source-verified.

This is research, not medical advice. Detox My Life shows sourced claims sorted by evidence tier. It does not diagnose, treat, or tell you to start or stop anything. Talk to a qualified professional about your health.

Scan your own. The app reads any product label with your camera, works out how you are about to use it, and researches every ingredient for that use with live sources. Every scan adds to a Detox Score for your home, where 50 is a typical home in your region, and a plan of next swaps.

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