Pesticide properties data needed to calculate the Aggregated Total Applied Toxicity (ATAT)

THE PPDB
Pesticide properties data needed to calculate the Aggregated Total Applied Toxicity (ATAT)

The ATAT is calculated using pesticide properties data, specifically ecotoxicity endpoint values (e.g., LC₅₀, EC₅₀, NOEC, etc.) in the form of Regulatory Threshold Levels (RTLs) for pesticide active ingredients.

To ensure consistency, it is essential that the same RTL values are used by all countries to calculate their ATAT. A standard set of RTL values (for each active ingredient for each species group) have been derived from endpoints in the PPDB. These can be downloaded here:

COMING SOON

These RTL values must be used to calculate the ATAT.

Full details on how to calculate the ATAT are provided in the Metadata Factsheet.

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