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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

Data have been obtained from secondary source (EPA databank), including several pubblication. 
For toxicity to aquatic algae and cyanobacteria many data for fresh and marine ecosystem are available.
NOEC for freshwateralgae of 1000 µg/L and LC50 5600 µg/L for marine water algae have been choosen as the most relevant and conservative data.

Key value for chemical safety assessment

EC10 or NOEC for freshwater algae:
10 900 µg/L
EC10 or NOEC for marine water algae:
78 000 µg/L

Additional information

FRESH WATER

The most relevant and conservative study defines a NOEC of 10900 µg/l based on aboundance. This value was not measured by chemical analysis. 2,4 -dinitrophenol was tested on the standard algae Pseudokirchneriella subcapitata (Green Algae), in a static condition. The exposure duration was 96 hours while the application frequency once at day.

MARINE WATER

The most relevant and conservative study defines a mortality endpoint of 78000 µg/l. This value was measured by chemical analysis. 2,4 -dinitrophenol (purity not measured) was tested on the Skeletonema costatum (Diatom), in salt water. The exposure duration was 96 hours .