3-Chloropropene - information sheet

1-propene, 3-chloro
CAS Registry Number 107-05-1

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  • The Government of Canada conducts risk assessments of substances under the Canadian Environmental Protection Act, 1999 (CEPA 1999) to determine whether they present or may present a risk to human health or to the environment.
    • The risks posed by a substance are determined by both its hazardous properties (potential to cause adverse human health or ecological effects) and the amount or extent of exposure to people and the environment.
    • When needed, the Government implements risk management measures under CEPA 1999 and other federal acts to help prevent or reduce potential harm.
  • As a result of the screening assessment, the Government concluded that 3-chloropropene is not harmful to human health or the environment at levels of exposure considered in the assessment.

About this substance

  • The screening assessment concluded on the substance 1-propene, 3-chloro, also referred to as 3-chloropropene. This substance was assessed as part of Batch 6 of the Challenge initiative of the CMP.
  • 3-Chloropropene is not expected to occur naturally in the environment.
  • According to information gathered by the Government at the time of the assessment, this substance was not in commerce in sufficient quantities to be reported. However, acrylic polymers manufactured using 3-chloropropene are imported by companies in Canada to be used in personal care products.  

Human and ecological exposures

  • According to the screening assessment, exposure of Canadians to 3-chloropropene was expected to be low and to occur from indoor and ambient air.
  • Exposure to residual levels of 3-chloropropene may occur from the use of certain products available to consumers made of acrylic polymers, including hair shampoos and conditioners, hair dyes, facial cleansers, facial makeup, aftershaves, and other skin care products. Contact with this substance may occur through inhalation (breathing in) and dermal contact (through the skin).
  • Release of 3-chloropropene residues from consumer products to the environment is considered to be low.

Key health and ecological effects (hazard)

  • The critical effects identified for characterizing the risk to human health for 3-chloropropene were reproductive and nervous system effects.
  • 3-chloropropene has been demonstrated to cause effects in sensitive aquatic organisms at low concentrations.

Risk assessment outcomes

  • Based upon information presented in the screening assessment, the risk to human health and to the environment from 3-chloropropene was considered to be low.

Screening assessment conclusions

  • The Government concluded that 3-chloropropene is not harmful to human health, and that this substance is not entering the environment at levels that are harmful.

Preventive actions and risk reduction

  • Although 3-chloropropene was not considered to be harmful to human health at the time of the assessment, this substance was considered to have health effects of concern. There may be a concern if exposures were to increase or use patterns were to change.
  • 3-Chloropropene is subject to the Significant New Activity (SNAc) provisions of CEPA 1999. This requires that the Government be notified of certain proposed new activities related to this substance, and that the new activity be assessed for potential risks to human health and the environment before being undertaken.
  • The order outlines the definition of a significant new activity in relation to 3-chloropropene as well as the information that needs to be provided to the Government for assessment before the new activity is undertaken.

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