Potential Aquatic Impacts and Continued Uses of Nonylphenol Ethoxylates and Triclosan


The Department of Toxic Substances Control (DTSC) is seeking input on specific questions pertaining to Potential Aquatic Impacts and Continued Uses of Nonylphenol Ethoxylates and Triclosan.

  • Theme 1. Nonylphenol ethoxylates in cleaning and clothing products
  • Theme 2. Triclosan product uses, removal, and substitution
  • Theme 3. Aquatic hazards and detection of NPEs, NP, triclosan, methyl triclosan, and other
    transformation products that can impact the aquatic environment or resources
  • Theme 4. Other Candidate Chemicals or products that may impact the aquatic
    environment or resources


The Priority Products Work Plan prioritized product categories containing chemicals that may adversely impact aquatic resources or that have been observed through water quality monitoring. DTSC has identified nonylphenol ethoxylates (NPEs) and triclosan as Candidate Chemicals that warrant further research. These chemicals and their transformation products are found in California aquatic environments and have associated hazards. While these chemicals are not the only Candidate Chemicals that have aquatic impacts, DTSC is focusing on them first due to their presence in multiple categories in the Work Plan. DTSC is requesting information to understand the use of, and challenges that California may be facing as a result of, consumer product-based inputs of NPEs and triclosan to aquatic environments.


Comment Period
November 15, 2016 to
February 28, 2017 12:00PM PST

Document Type
Work Plan Implementation

Comments Published
View Comments (8)

Supporting Documents
Webinar Agenda
Stakeholder Discussion Agenda (1/11/17)
Stakeholder Discussion (Webinar Recording 1/11/17)
Stakeholder Workshop Agenda (2/8/2017)
Stakeholder Workshop (Webinar Recording 2/8/2017)


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