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Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

Terrestrial Effects

According to “ANNEX IX- STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF 100 TONNES OR MORE , study for effects on terrestrial organisms and plants need not be conducted if:

- These studies do not need to be conducted if direct and indirect exposure of the soil compartment is unlikely.

Potassium is one of the three major nutrients for plants. The potassium requirement for optimal plant growth is in the range 2-5 % of the plant dry weight of vegetative parts.

Potassium in plants is important for the osmotic and ionic regulation, plays a key role in the water homeostasis, and is closely connected with processes involved in the protein synthesis. In higher plants, potassium affects photosynthesis at various levels.

The ECOSAR QSAR model predicts that 30-day, NOEC cited as a ChV value would to be 178.832 mg/L (ppm) for terrestrial plants.

The ECOSAR QSAR model predicts that 96-hr EC50 value would to be 1368.296 mg/L (ppm) for terrestrial plants.

180d EC50 = 850 and EC92 = 3000 mg/l for the enchytraeid population in fresh pine substrate.

The ECOSAR QSAR model predicts that 14-day, LC50 (14-day, earthworm) would to be 887.517 mg/L (ppm).