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No acute adverse effects towards fish were observed when testing Sulfonic acids, C10 -21-alkane, Ph esters at a concentration of 2 mg/L (Bayer AG, 2003b).

No adverse acute effects toward the mobility of Daphnia magna have been observed when testing Sulfonic acids, C10 -21-alkane, Ph esters up to its water solubility of 2.2 mg/L (Bayer Industry Services, 2006b).

No adverse effects on the growth rate of Desmodesmus subspicatus was observed testing Sulfonic acids, C10 -21-alkane, Ph esters at its maximal water solubility (2 mg/L) (Bayer AG, 2003c).

Respiration of activated sludge was not inhibited testing concentrations of Sulfonic acids, C10 -21-alkane, Ph esters up to 10000 mg/L (Bayer Industry Services, 2006c).