Substance Identity
CAS Number 9003-11-6
Chemical Name Oxirane, methyl-, polymer with oxirane
Type of substance Polymer
Moiety of concern polymer
Categorization Results

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

Ecological data supporting decisions

Underlying data regarding persistence

Media of concern leading to Categorization Not Applicable
Experimental Biodegradation half-life (days) Not Available

Underlying data regarding Bioaccumulation

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) < 0.05
Experimental result iT (mg/l) < 0.05
Test species iT (Latin) Gymnodinium breve
Test species iT (Common) Red tide algae
Final EndPoint iT LC50
Exposure duration iT (hours) 48
Comment iT HC GPE; This chemical is a pesticide registered under PMRA. 2 day LOEC 12.89 ppm giving 36% mortality. At concentration level of 50.0 ppb, 59 % of mortality was reported. End point is verified by NCR. Group: Sub-group of polymeric oxirane: Oxirane, methyl-, polymer with oxirane derivatives [9003-11-6; 26617-87-8; 25931-44-6; 24969-10-6; 24969-06-0; 37280-82-3]
Reference iT Kutt, E.C., and D.F. Martin, Effect of Selected Surfactants on the Growth Characteristics of Gymnodinium breve. Mar.Biol. 28(4):253-259, 1974
Robust Study Summary iT

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