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Environmental fate & pathways

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In a biodegradaiton test according to ASTM (No. 3), 7PPD showed 0% degradation after 35 days. Therefore, 7PPD is considered not readily biodegradable. In an Aerobic Soil Study with 7PPD, the parent compound disappeared with a half-life of <1.9 days. No significant metabolites were found. Most of the radioactivity (about 80% at day 56) was found as non-extractable. The main pathway was a strong adsorption or binding to soil.

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