Table 3. Half-lives of 1 under the illuminated condition and dark condition in water–sediment systems.

Test condition		Xe lamp (day)	J-MAFF19) (day)	OECD20) (day)
[PY-14C] light	Aqueous	5.7	—	—
	Total	16	55	19
[PH-14C] light	Aqueous	4.5	—	—
	Total	18	156	53
[PY-14C] Sterilized light	Aqueous	11	—	—
	Total	156	>1000	339
[PY-14C] Dark	Aqueous	11	—	—
	Total	>1000	—	—

Xe, xenon; [PY-¹⁴C]-1, ¹⁴C-labeled at the 4-position of the pyrazole ring; [PH-¹⁴C]-1, ¹⁴C-labeled uniformly at the phenyl ring; J-MAFF, Ministry of Agriculture, Forestry and Fisheries of Japan. OECD, Organization for Economic Co-operation and Development.