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Long-term toxicity to fish

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Description of key information

Key value for chemical safety assessment

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One reliable long term toxicity study (Klimisch 1, GLP) for a fish species -the zebrafish danio rerio - was conducted. No effect (mortality) was noted at the highest test concentration of nominal 100 mg barium dichloride dihydrate/L. Since the recovery rates (RR) of the analytical verification of the test material in test solution are < 80% the results are given as actual (geometric mean measured) concentrations.

(a) The NOEC >= 61.1 mg BaCl2/L (>= 40.3 mg barium/L) based on total barium concentration.

(b) The NOEC >= 1.91 mg BaCl2/L (>= 1.26 mg barium/L) based on dissolved barium concentration.