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REACH

Pyrithione zinc

EC number: 236-671-3 | CAS number: 13463-41-7

Life Cycle description
Uses advised against

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Fresh water invertebrates

Effect concentration:: 0.008 mg/L

Marine water invertebrates

Effect concentration:: 0.006 mg/L

Additional information

The information contained within this robust summary document comes from studies which are in the ownership of Arch Chemicals Inc. and which are protected in several regions globally. This information may not be used for any purpose other than in support of the Chemical safety Report submitted by Arch Chemicals Inc. under RegulationEC 1907/2006.

1.1.1.1.1

Table40:Acute toxicity of ZPT to invertebrates

Guideline / Test method	Species	Endpoint / Type of test	Exposure		Results [mg/L]			Remarks	Reference
Guideline / Test method	Species	Endpoint / Type of test	design	duration	NOEC	LC₅₀	LC₁₀₀	Remarks	Reference
US EPA- 72-2	Daphnia magna	Immobility and mortality	Flow-through	48 hours	0.0011	0.0082	>0.011	Key study	Boeri RL, Magazu JP, Ward TJ (1994) Unpublished study
OECD 202 92-69/EEC, C.2	Daphnia magna	Immobility	Flow-through	48 hours	0.0056	0.050	>0.180	-	Smyth DV, Croudace CP, Banner AJ, Eales GJ (1994). Unpublished study
US EPA – 72-3(b)	Mysidopsis bahia	Mortality	Flow-through	96 hours	0.0016	0.0063	0.0094	-	Boeri RL, Magazu JP, Ward TJ (1993) Unpublished study
US EPA	Eastern oyster Crassostrea virginica	Shell growth	Flow-through	96 hours	0.010	0.022	>0.033	-	Boeri RL, Magazu JP, Ward TJ (1994) Unpublished study

Table41:Acute toxicity of Pyridine-N-oxide-2-sulfonic acid to invertebrates

Guideline / Test method	Species	Endpoint / Type of test	Exposure		Results [mg/L]			Remarks	Reference
Guideline / Test method	Species	Endpoint / Type of test	design	duration	NOEC	LC₅₀	EC₅₀	Remarks	Reference
US EPA- 72-2	Daphnia magna	Immobility and mortality	Flow-through	48 hours	127	-	>127	-	Ward TJ, Kowalski PL, Boeri RL (1994) Unpublished study
US EPA – 72-3(b)	Mysid Mysidopsis bahia	Mortality	Static	96 hours	32.2	71.3	-	-	Ward TJ, Kowalski PL, Boeri RL (1994) Unpublished study
US EPA	Eastern oyster Crassostrea virginica	Shell growth	Flow-through	96 hours	35.6	-	99.2	-	Boeri RL, Kowalski PL, Ward TJ (1994) Unpublished study

Table42:Acute toxicity of Pyridine Sulphonic acid to invertebrates

Guideline / Test method	Species	Endpoint / Type of test	Exposure		Results [mg/L]			Remarks	Reference
Guideline / Test method	Species	Endpoint / Type of test	design	duration	NOEC	LC₅₀	EC₅₀	Remarks	Reference
US EPA- 72-2	Daphnia magna	Immobility and mortality	Flow-through	48 hours	122	-	>122	-	Ward TJ, Kowalski PL, Boeri RL (1994) Unpublished study
US EPA – 72-3(b)	Mysid Mysidopsis bahia	Mortality	Flow-through	96 hours	51.9	71.6	-	-	Ward TJ, Kowalski PL, Boeri RL (1994) Unpublished study
US EPA	Eastern oyster Crassostrea virginica	Shell growth	Flow-through	96 hours	51.1	85.6	-	Key study	Boeri RL, Kowalski PL, Ward TJ (1994) Unpublished study

Table43:Acute toxicity of 2,2’-(pyridyl-N-oxide) disulphide to invertebrates

Guideline / Test method	Species	Endpoint / Type of test	Exposure		Results [mg/L]			Remarks	Reference
Guideline / Test method	Species	Endpoint / Type of test	design	duration	NOEC	LC₅₀	EC₅₀	Remarks	Reference
US EPA- 72-2	Daphnia magna	Immobility and mortality	Flow-through	48 hours	0.006		0.013		Ward TJ, Magazu JP, Boeri RL (1995) Unpublished study
US EPA- 72-3(b)	Mysidopsis bahia	Mortality	static	96 hours	0.004	0.0064			Ward TJ, Magazu JP, Boeri RL (1995) Unpublished study
US EPA – 72-3(c)	Eastern oyster Crassostrea virginica	Shell growth	Flow-through	96 hours	0.110		0.16		Ward TJ, Magazu JP, Boeri RL (1995) Unpublished study

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