Substance Identity
CAS Number 67-56-1
Chemical Name Methanol
Type of substance Organic
SMILES OC
Moiety of concern organic
Categorization Results

Meets Government of Canada Categorization Criteria? Yes
Meets Human Health Categorization Criteria? Yes
Meets Environmental Criteria for Categorization? No
Persistent (P)? Yes
Rational for P Experiment
Bioaccumulative (B)? No
Rational for B QSAR
Inherently Toxic to Aquatic Organisms (iT)? No
Rational for iT Experiment
DSL Quantity range (tonnes/year) >1000T

Ecological data supporting decisions

Underlying data regarding persistence

Media of concern leading to Categorization Air-Water
Experimental Biodegradation half-life (days) Not Available
Experimental Biodegradation result (%) 95
Reference (biodegradation result) PRICE,K.S.; WAGGY,G.T.; CONWAY,R.A.; BRINE SHRIMP BIOASSAY AND SEAWATER BOD OF PETROCHEMICALS.; J. WATER POLLUT. CONTR. FED.; 46:63-77.; 1974
Robust Study Summary (biodegradation result)
67561.doc
Predicted Ultimate degradation half-life (days) 8.67
MITI probability of biodegradation 0.9324
TOPKAT probability of biodegradation 1
EPI Predicted Ozone reaction half-life (days) 999
Experimental Atmospheric Oxidation half-life (days) 11.3288606403013
Reference (oxidation) ATKINSON,R.; KINETICS AND MECHANISMS OF THE GAS-PHASE REACTIONS OF THE HYDROXYL RADICAL WITH ORGANIC COMPOUNDS.; JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA. MONOGRAPH NO. 1.; 1989
EPI Predicted Atmospheric Oxidation half-life (days) 17.36

Underlying data regarding Bioaccumulation

Empirical Log Kow -0.77
Log Kow predicted by KowWin -0.63
Log BAF T2MTL predicted by Gobas 0.0000540371955876
Log BCF 5% T2LTL predicted by Gobas 0.0005144646215092
Log BCF Max predicted by OASIS 0.991410909343895
Log BCF predicted by BCFWIN 0.5

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 3289
Experimental result iT (mg/l) 3289
Exposure duration iT (hours) 48
Robust Study Summary iT
67561-AT-LC50-I-anoimb.doc
67561-AT-LC50-I-Dapmag-4.doc
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 7,045.736
Toxicity to fish (LC50 in mg/l) as predicted by Aster 9,416.435
Toxicity to fish (LC50 in mg/l) as predicted by PNN 1,457.28165
Toxicity to daphnia (EC50 in mg/l) as predicted by Topkat v6.1 30,600
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 3,382.8
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 102.171
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 7.05E+003

Human Health data supporting decisions
Underlying data regarding potential for exposure

LPE/IPE/GPE Greatest Potential for Exposure (HC Simple Exposure Tool)

Underlying data regarding Previous Assessments

Underlying data regarding Simple Hazard Assessment


Underlying data regarding Complex Hazard Assessment