| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | chlorine | South Asian countries | Chlorine is often used to disinfect water for drinking and household cleaning purposes, especially in areas with limited access to clean water sources. | 1 |
| 2 | chlorine gas | South Asian countries | Chlorine gas is used in water treatment facilities to disinfect and purify drinking water. | 1 |