| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | arsenic acid | Eastern countries | Used in traditional medicine and agriculture in controlled quantities, with historical applications in herbal remedies and pest control. | 1 |
| 2 | arsenous acid | Eastern countries | Used traditionally in small amounts in herbal medicine for specific purposes, with strict guidelines for its preparation and usage. | 1 |
| 3 | arsenous acid | Eastern countries | Used historically in traditional Chinese medicine for specific medical purposes, but not commonly encountered in modern everyday life. | 1 |