BDN - information sheet

Nickel, bis[1-[4-(dimethylamino)phenyl]-2-phenyl-1,2-ethenedithiolato(2-)-S,S']-
CAS Registry Number 38465-55-3

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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.
  • The Government concluded that BDN is not harmful to human health or to the environment at levels of exposure considered in the assessment.

About this substance

  • The screening assessment concluded on the substance BDN. This substance was assessed as part of Batch 9 of the Challenge initiative of the CMP.
  • According to information gathered by the Government at the time of the assessment, BDN was not in commerce in sufficient quantities to be reported.

Human and ecological exposures

  • Given the low commercial activity, it was determined that likelihood of exposure of Canadians and the environment to BDN is low. Other sources of entry into the environment were not identified at the time of the assessment.

Key health and ecological effects (hazard)

  • On the basis of classifications by international and national agencies, BDN was not identified as posing a high hazard to human health for carcinogenicity, genotoxicity, developmental or reproductive toxicity.
  • BDN is considered to be highly hazardous to non-human organisms.

Risk assessment outcomes

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

Screening assessment conclusions

  • The Government concluded that BDN 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 BDN was not considered to be harmful to the environment at the time of the assessment, it is associated with ecological effects of concern. There may be a potential risk if exposure to BDN were to increase or use patterns were to change.
  • BDN 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 BDN, 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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