Phenol , 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-(BDTP)
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Final Screening Assessment
In May 2016, the Final Screening Assessment on Phenol , 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-(BDTP) was released and the related Notice was published in the Canada Gazette, Canada Gazette, Part I: Vol. 150, No. 21 May 21, 2016 (PDF Version - 1,724 K). The final screening assessment concludes that BDTP does not meet any of the criteria set out in section 64 of the Canadian Environmental Protection Act, 1999 (CEPA 1999).
Although a risk to human health has not been identified for BDTP, there may be ecological concerns if import and use quantities of BDTP were to increase in Canada. BDTP meets the criteria for persistence and bioaccumulation under CEPA 1999, however BDTP is not currently entering the environment in quantities that may be harmful to the environment, and no longer meets the criteria for virtual elimination. Therefore, options on how to best monitor changes in the quantity of BDTP entering the environment through Canadian import and use will be investigated through the addition of BDTP to the Domestic Substances List (DSL) Inventory Update.
Draft Screening Assessment and Risk Management Scope
In January 2014, the Draft Screening Assessment on Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-(BDTP) was released and the related Notice was published in the Canada Gazette, Part I: Vol. 148, No. 4 - January 25, 2014 (PDF Version - 1,429 KB). A Risk Management Scope Document on BDTP was also released in conjunction with this publication. There were 60-day public comment periods associated with these publications.
The draft screening assessment proposed to conclude that BDTP meets one or more criteria set out in section 64 of the CEPA 1999. Comments and the Government's response relating to general themes on the draft screening assessment are summarized in the Summary of Public Comments received on the Draft Screening Assessment on Phenol , 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-(BDTP).
Before the launch of the Chemicals Management Plan in 2006, a Screening Assessment Pilot Project was initiated to apply new tools and approaches to a subset of substances on the Domestic Substances List (DSL) such as BDTP, that were anticipated to meet the ecological or human health categorization criteria. Subsequently, under the categorization exercise, BDTP was found to be a high priority for assessment from an environment perspective.
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