PRSD 2022-01 Special Review of Chlorothalonil and Associated End Use Products

The Canadian Association of Physicians for the Environment (CAPE) submitted a response to Health Canada's Pest Management Regulatory Agency (PMRA) regarding the special review of chlorothalonil. CAPE supports the decision to cancel the use of chlorothalonil and associated end-use products and the revocation of Maximum Residue Levels (MRLs), while urging for the immediate cancellation of all uses, including those in greenhouses and mushroom houses, due to unresolved human health and occupational risks.

• CAPE supports the Health Canada PMRA's decision to cancel the use of chlorothalonil and associated end-use products, as well as the immediate revocation of Maximum Residue Levels (MRLs), stating that risks to the environment and human health are unacceptable under current registration conditions.
• CAPE identifies several human health concerns regarding chlorothalonil, including lifetime cancer risks for the general population (via food and drinking water), endocrine risks, and very high exceedances of acute and chronic non-cancer reference doses.
• There is significant concern regarding the lack of data and uncertainty surrounding the genotoxicity and genotoxic potential of metabolites. CAPE asserts that the responsibility lies with the registrant to provide this information to ensure no harm to human health.
• CAPE requests the immediate cancellation of chlorothalonil use in greenhouses and mushroom houses, arguing that the PMRA failed to conduct a transparent and complete assessment of occupational risks for workers in these settings.
• CAPE proposes that all uses of chlorothalonil be immediately cancelled and recalled, stating that the registrant has failed to establish a reasonable certainty that no harm will occur despite over a decade of reviews.

APA

Canadian Association of Physicians for the Environment (2022). PRSD 2022-01 Special Review of Chlorothalonil and Associated End Use Products. https://cape.ca/wp-content/uploads/2022/05/May-09-Special-Review-of-Chlorothalonil-Comment-from-CAPE.docx.pdf#new_tab

Chicago

Canadian Association of Physicians for the Environment. PRSD 2022-01 Special Review of Chlorothalonil and Associated End Use Products. 2022. https://cape.ca/wp-content/uploads/2022/05/May-09-Special-Review-of-Chlorothalonil-Comment-from-CAPE.docx.pdf#new_tab.

Wikipedia

{{cite press release |author=Canadian Association of Physicians for the Environment |title=PRSD 2022-01 Special Review of Chlorothalonil and Associated End Use Products |date=9 May 2022 |url=https://cape.ca/wp-content/uploads/2022/05/May-09-Special-Review-of-Chlorothalonil-Comment-from-CAPE.docx.pdf#new_tab |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@misc{canadianassociationofphysiciansfortheenvironment2022prsd, author = {{Canadian Association of Physicians for the Environment}}, title = {{PRSD 2022-01 Special Review of Chlorothalonil and Associated End Use Products}}, publisher = {Canadian Association of Physicians for the Environment}, year = {2022}, month = may, url = {https://cape.ca/wp-content/uploads/2022/05/May-09-Special-Review-of-Chlorothalonil-Comment-from-CAPE.docx.pdf#new_tab}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }