MedEd Pesticide Methodology

MedEd Pesticide Collects Database Records From Two Open Sources

MedEd Pesticide takes EU approval status, approval dates, safety reference values and hazard classification from the EU Pesticides Database. MedEd Pesticide takes US status from EPA’s Pesticide Product Information System. MedEd Pesticide takes chemical identity, including formula and molar mass, from PubChem. The sources page links to each.

MedEd Pesticide Assigns Type and Chemical Class Itself

The EU lists one category for each substance. MedEd Pesticide therefore assigns each pesticide’s type and chemical class by hand. The EU lists carbaryl as a plant growth regulator, for example, and MedEd Pesticide lists it as an insecticide.

MedEd Pesticide Derives US Status From EPA Product Records

MedEd Pesticide marks a pesticide Registered when at least one active EPA product contains it. MedEd Pesticide marks it Not registered when every product that contained it is cancelled. Matching uses the CAS number and EPA’s chemical names, so salts and esters count. The records cover products registered under FIFRA Section 3, and they do not include state-only registrations.

MedEd Pesticide Takes Toxicity Records From EPA’s ToxValDB

MedEd Pesticide takes lethal doses, no-effect levels and reference doses from the EPA Toxicity Values Database, version 9.7.0. EPA releases it without copyright restrictions. MedEd Pesticide keeps the records for pesticides and removes exact duplicates.

Each record shows its source and year. ToxValDB marks most records “not determined” in quality control, so they are not reviewed values. Mammal studies make up nearly all the records, so effects on bees, fish and aquatic life are thin.

MedEd Pesticide Dates Every Data Pull

Each pesticide page shows the date MedEd Pesticide retrieved its data. The latest EU and PubChem pull was on 2026-10-16. The EPA records are dated 2026-10-13. Values and approvals change, so the source entry always has the current figure.

MedEd Pesticide States the Limits of Its Data

EU status is not US status, so MedEd Pesticide shows both. A pesticide that is not approved in the EU may still be registered in the United States. The pesticide label sets the required protective equipment and use directions, so users follow the label first.

MedEd Pesticide keeps adding pesticides to the database. The editorial policy covers how MedEd Pesticide writes its guides and handles errors.