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Document ID ca-gcdwqgtd-2011-07-20-10 Title Guidelines for Canadian Drinking Water Quality: Guideline Technical Document – Carbon Tetrachloride URL https://www.canada.ca/en/health-canada/services/publications/healthy-living/guidelines-canadian-drinking-water-quality-guideline-technical-document-carbon-tetrachloride/page-10-guidelines-canadian-drinking-water-quality-guideline-technical-document-carbon-tetrachloride.html Jurisdiction /ca Subdomain(s) Drinking water Language en Status completed Analyzed at 2026-03-17 17:19:48.354361+00:00 Relevance Technical document providing the scientific basis for drinking water standards.

Q Qualitative Requirements (0)

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P Quantitative Requirements (32)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#R001unknownhealthguidelineNOAEL for subchronic hepatotoxicity (rat)drinking waterrequirement1 mg/kg bw/day12-week subchronic experiment in male Sprague-Dawley ratsadministered by gavage in corn oil, 5 days per week for 12 weekshigh
#R002unknownhealthguidelineLOAEL for subchronic hepatotoxicity (rat)drinking waterrequirement10 mg/kg bw/day12-week subchronic experiment in male Sprague-Dawley ratsadministered by gavage in corn oil, 5 days per week for 12 weekshigh
#R003unknownhealthguidelineNOAEL for subchronic hepatotoxicity (mouse, corn oil)drinking waterrequirement1.2 mg/kg bw/day90-day subchronic study in CD-1 mice comparing gavage vehiclesadministered by gavage in corn oil, 5 days per week for 90 dayshigh
#R004unknownhealthguidelineNOAEL for subchronic hepatotoxicity (mouse, Tween-60)drinking waterrequirement12 mg/kg bw/day90-day subchronic study in CD-1 mice comparing gavage vehiclesadministered by gavage in 1% Tween-60, 5 days per week for 90 dayshigh
#R005unknownhealthguidelineLOAEL for hepatic endpoints (inhalation)drinking waterrequirement10 ppm13-week subchronic inhalation study in F344 rats and BDF1 miceexposure to carbon tetrachloride vapour for 6 h/d and 5 d/wk for 13 weekshigh
#R006unknownhealthguidelineNOAEL for maternal and developmental toxicity (rat)drinking waterrequirement25 mg/kg bw/dayDevelopmental toxicity study in pregnant Fischer 344 ratsgavage on gestation days 6-15 in either corn oil or an aqueous vehiclehigh
#R007unknownhealthguidelineThreshold for central nervous system effects (human)drinking waterrequirement20-50 ppmHuman occupational exposure via inhalation8-h workday exposurehigh
#R008chemicalhealthguidelineHuman lethal oral dose rangedrinking waterrequirement43-450 mg/kg bwHistorical cases of poisoning by oral exposureAcute oral exposurehigh
#R009chemicalhealthguidelineEpidemiological exposure association thresholddrinking waterrequirement>1 ppbStudy of public drinking water contamination and birth outcomes in New JerseyConcentration in public drinking waterhigh
#R010chemicalhealthguidelineAcute LOAEL for hepatotoxicity (rat, non-oil vehicles)drinking waterrequirement10 mg/kg bwInvestigation of oral dosing vehicles on acute hepatotoxicityAdministered as undiluted chemical, aqueous emulsion, or in waterhigh
#R011chemicalhealthguidelineContinuous inhalation NOAEL (multi-species)drinking waterrequirement6.1 mg/m³90-day continuous inhalation exposure study in rats, guinea pigs, monkeys, rabbits, and dogsExposed continuously for 90 dayshigh
#R012chemicalhealthguidelineOral LD50 (rat)drinking waterrequirement7500-10200 mg/kg bwAcute oral toxicity studies in ratsSingle oral dosehigh
#R013chemicalhealthguidelineAcute LC50 (mouse)drinking waterrequirement9526 ppmAcute inhalation toxicity study in Swiss mice7-h inhalation exposurehigh
#R014chemicalhealthguidelineAcute oral threshold for liver damage (rat)drinking waterrequirement39.9 mg/kg bwSingle oral doses administered in corn oilRats sacrificed 18 h after dosinghigh
#R015chemicalhealthguidelineChronic inhalation hepatocellular adenoma threshold (female mice)drinking waterrequirement5 ppm104-week whole-body inhalation study6 h per day, 5 days per week, for 104 weekshigh
#R016chemicalhealthguidelineCalculated daily uptake from 10 ppm inhalation (rat)drinking waterrequirement13 mg/kg bwConversion from 6-hour inhalation exposure at the LOAELAssuming 100% lung absorption ratiohigh
#R017unknownhealthguidelineDaily uptake from 10 ppm inhalation (mouse)drinking waterrequirement29 mg/kg bwCalculated daily uptake from subchronic LOAEL for miceAssuming 100% lung absorption ratio and specific inhalation volume for micehigh
#R018chemicalhealthguidelineDermal LD50 (rabbits and guinea pigs)drinking waterrequirement> 9.4 mL/kgAcute toxicity following dermal exposure in animalsSingle dermal exposurehigh
#R019chemicalhealthguidelineAcute inhalation no-effect level (rat)drinking waterrequirement50 ppmSingle inhalation exposure in male rats7-hour exposure periodhigh
#R020chemicalhealthguidelineDietary NOAEL for fertility and development (rat)drinking waterrequirement10-18 mg/kg bw2-year multigenerational rat feeding studyFumigated mash with residual carbon tetrachloride up to 200 ppmhigh
#R021chemicalhealthguidelineHuman central nervous system depression threshold (inhalation)drinking waterrequirement40 ppmOccupational inhalation exposureExposure for 2-3 monthshigh
#R022chemicalhealthguidelineHuman narcosis threshold (inhalation)drinking waterrequirement80 ppmOccupational inhalation exposureExposure for 2-3 monthshigh
#R023physicalhealthguidelineChronic LOEL for urinalysis changes (rat)drinking waterrequirement5 ppm104-week whole-body inhalation study in F344 ratsexposed 6 h per day, 5 days per week, for 104 weekshigh
#R024chemicalhealthguidelineConfirmed oral LD50 (mouse)drinking waterrequirement14000 mg/kg bwAcute oral toxicity verification in CD-1 miceAdministered by corn oil gavagehigh
#R025chemicalhealthguideline10-day oral LOEL for liver effects (rat)drinking waterrequirement5 mg/kg bw/day10-day consecutive oral gavage study in male Fischer 344 ratsAdministered in corn oil for 10 consecutive dayshigh
#R026chemicalhealthguideline90-day oral LOAEL for hepatotoxicity (mouse)drinking waterrequirement12 mg/kg bw/day90-day subchronic oral gavage study in CD-1 miceAdministered in corn oil for 90 dayshigh
#R027chemicalhealthguidelineSpecific acute oral LD50 (rat)drinking waterrequirement10054 mg/kg bwAcute oral toxicity study in rats (Dashiell and Kennedy, 1984)Single oral dosehigh
#R028chemicalhealthguidelineWeekly oral carcinogenic dose (hamster)drinking waterrequirement100-200 mg/kg bw/week30-week oral gavage study in Syrian golden hamstersadministered in weekly doses for 30 weekshigh
#R029chemicalhealthguidelineChronic oral carcinogenic dose (male rat)drinking waterrequirement47-94 mg/kg bw/day78-week NCI carcinogenicity bioassayadministered by gavage in corn oil 5 days per weekhigh
#R030chemicalhealthguidelineChronic oral carcinogenic dose (female rat)drinking waterrequirement80-159 mg/kg bw/day78-week NCI carcinogenicity bioassayadministered by gavage in corn oil 5 days per weekhigh
#R031chemicalhealthguidelineAcute dermal mortality threshold (guinea pig)drinking waterrequirement0.5 mLAcute toxicity following dermal exposureApplied to a 3.1-cm2 area of skinhigh
#R032chemicalhealthguidelineSub-acute repeated inhalation LOAEL (rat)drinking waterrequirement10 ppmRepeated inhalation exposure study in rats7 h per day for 13 exposures in a 17-day periodhigh

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No definitions.