| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | calcium hypochlorite | India | Calcium hypochlorite is often used as a household bleach and for water purification in India and Southeast Asian countries. | 1 |
| 2 | sodium hypochlorite | India | Less commonly used at home, more commonly associated with industrial or commercial use | 1 |
| 3 | sodium hypochlorite | India | Sodium hypochlorite is often used to disinfect water in order to make it safe for drinking and cooking. | 1 |
| 4 | water hyacinth | India | Considered a major nuisance and threat to waterways | 1 |