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Environmental fate & pathways

Biodegradation in soil

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No information on the biodegradation of sodium acrylate in soils are available. However, based on the results of the structural analogue acrylic acid the ready biodegradability of sodium acrylate is likely. Nevertheless, a well-documented and reliable test on biodegradation of acryl acid in soil (sandy loam) is available. From the test design, the test can be rated as a simulation test in soil. Under aerobic conditions acrylic acid was rapidly metabolized. After 3 days no acrylic acid was detected in soil extracts. The half-life for acrylic acid under these conditions was estimated to be less than one day.

From the presented simulation test in soil it can be concluded that acrylic acid is readily biodegradable in sandy loam. Since the chemical structure of sodium acrylate is related to acrylic acid, ready biodegradability of the test substance in soil is to be expected.