Online Catalog
A collection of nonclinical studies & assays; customization is possible.

OECD 216: Soil microorganisms (nitrogen transformation test)

Soil microorganisms: a nitrogen transformation test assesses the long-term impact of a one-time chemical exposure on the nitrogen transformation activities of soil microorganisms. Soil is treated with the test chemical and observed regularly over a 28-day period. If, after 28 days, a significant difference (>25%) exists between nitrogen transformation activity in the test and control soils, up to 72 additional days of observation may be conducted.

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Chemical, Crop, Pharma