2,5-Dichloroaniline in freshwater and marine water

​​​​Toxicant default guideline values for protecting aquatic ecosystems
October 2000

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Extracted from Section 8.3.7 ‘Detailed descriptions of chemicals’ of the ANZECC & ARMCANZ (2000) guidelines.

The default guideline values (previously known as ‘trigger values’) and associated information in this technical brief should be used in accordance with the detailed guidance provided in the Australian and New Zealand Guidelines for Fresh and Marine Water Quality.

Description of chemical

2,5-dichloroaniline (CAS 95-82-9)

Aquatic toxicology

Data were only available for the waterflea Daphnia magna (48-hour LC50, 2900 µg/L) and one freshwater alga Chlorella pyrenoidosa (96-hour EC50, growth, 10 mg/L).

Guideline

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In absence of sufficient data to derive a reliable guideline value for 2,5-DCA, a low reliability trigger value of 3 µg/L (fresh and marine) was calculated using an assessment factor (AF) of 1000. This should be used only as an indicative interim working level.

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Reference​

ANZECC & ARMCANZ 2000. Australian and New Zealand Guidelines for Fresh and Marine Water Quality, Australian and New Zealand Environment and Conservation Council and Agriculture and Resource Management Council of Australia and New Zealand, Canberra.