TCPy or 3,5,6-trichloro-2-pyridinol is a cyclic hydrocarbon, specifically a chlorinated version of 2-pyridone.
Pesticides can be a precursor to TCPy. TCPy is a metabolite of the herbicide triclopyr,[1] and of the insecticides chlorpyrifos and chlorpyrifos-methyl. A study in Massachusetts reported a correlation between exposure to TCPy and lower testosterone levels in men.[2] According to this source, exposure is "widespread" and of "potential public health importance".
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A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) ( EU - Pesticides database 5 = Verified data used for regulatory purposes
A5
Persistent DT&#;&#; (lab at 20 °C) 226 EFSA Scientific Publications )A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) ( EU - Pesticides database 5 = Verified data used for regulatory purposes
A5
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Persistent DT&#;&#; (field) 75.3 EFSA Scientific Publications )A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) ( EU - Pesticides database 5 = Verified data used for regulatory purposes
A5
Moderately persistent DT&#;&#; (lab at 20 °C) 288 EFSA Scientific Publications )A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) ( EU - Pesticides database 5 = Verified data used for regulatory purposes
A5
Persistent DT&#;&#; (field) 250 EFSA Scientific Publications )A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) ( EU - Pesticides database 4 = Verified data
A4
- DT&#;&#; modelling endpoint 166.1 EFSA Scientific Publications )A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) ( EU - Pesticides database 5 = Verified data used for regulatory purposes
A5
- Note EU dossier lab studies DT&#;&#; range 7.2 - > days, DT&#;&#; range 28.4 - > days; Field studies range 15.59-166.1 days, DT&#;&#; range 51.8-552 days, Soils=3 Dissipation rate RL&#;&#; (days) on plant matrix Value - - - Note - Dissipation rate RL&#;&#; (days) on and in plant matrix Value - - - Note - Aqueous photolysis DT&#;&#; (days) at pH 7 Value - - - Note - Aqueous hydrolysis DT&#;&#; (days) at 20 °C and pH 7 Value - - - Note - Water-sediment DT&#;&#; (days) 19.8 EFSA Scientific Publications )A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) ( EU - Pesticides database 5 = Verified data used for regulatory purposes
A5
Fast Water phase only DT&#;&#; (days) 23 EFSA Scientific Publications )A = EU regulatory and evaluation data as published by EC, EFSA (RAR, DAR & Conclusion dossiers), EMA (e.g. EU Annex III PIC DGD) ( EU - Pesticides database 5 = Verified data used for regulatory purposes
A5
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Slow Sediment phase only DT&#;&#; (days) - - - Air degradation As this parameter is not normally measured directly, a surrogate measure is used: &#;Photochemical oxidative DT&#;&#;&#;. Where data is available, this can be found in the Fate Indices section below. Decay in stored produce DT&#;&#; -