Table 2.
Hazard Categorization of Expanded Inventory
| EPA Category | GHS Category | Number of LD50 Entriesa | Number of Chemicalsa |
|---|---|---|---|
| I (LD50 ≤ 50 mg/kg) | 1 (LD50 ≤ 5 mg/kg) | 104 | 53 |
| I (LD50 ≤ 50 mg/kg) | 2 (5 < LD50 ≤ 50 mg/kg) | 342 | 183 |
| II (50 < LD50 ≤ 500 mg/kg) | 3 (50 < LD50 ≤ 300 mg/kg) | 1166 | 556 |
| II (50 < LD50 ≤ 500 mg/kg) | 4 (300 < LD50 ≤ 2000 mg/kg) | 528 | 354 |
| III (500 < LD50 ≤ 5000 mg/kg) | 4 (300 < LD50 ≤ 2000 mg/kg) | 2567 | 1309 |
| III (500 < LD50 ≤ 5000 mg/kg) | 5 (LD50 > 2000 mg/kg) | 2079 | 1032 |
| IV (LD50 > 5000 mg/kg) | 5 (LD50 > 2000 mg/kg) | 788 | 458 |
a
Note that although the sum of LD50 entries equals the total number of chemicals in the inventory (7574 entries), the total number of chemicals does not equal the sum of unique chemicals in the inventory (2441 chemicals) because many chemicals have entries (eg, LD50 values) in more than one row depending on whether replicate study results mapped to different categories.