| THE PPDB |
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Purchasing and licensing - Calculated data |
Calculated data available
Several parameters displayed online do not exist in the database because they are calculated (using other properties). These calculated data include:
- Fate indices: This includes the GUS leaching potential index; SCI-GROW groundwater index; Potential for particle bound transport index; and Potential for loss via drain flow.
- Pesticide Hazard Tricolour (PHT) alerts: The hazard alert system displayed at the top of each substance record.
- Regulatory Threshold Levels (RTLs): Based on ecotoxcity endpoints for nine species groups, used to calculate the Total Applied Toxicity (TAT) indicator.
- Highly Hazardous Pesticide (HHPs): Whether a substance is classified as a Type I or Type II HHP, plus the criteria that trigger this.
This data can be purchased either in a stand-alone format or as an addition to the full PPDB (at a 40% discount), so:
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£150 |
Included |
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£150 |
£882 |
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£150 |
£882 |
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£150 |
Included |
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£225 |
£827 |
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£302 |
£973 |
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£360 |
£1008 |
To obtain any of these data sets email the team at aeru@herts.ac.uk
Note: VAT is charged on all prices when applicable.
Note: Prices quoted on this site are valid till 1 March 2026, after which there will be a 5% increase.