Facts for Prelims (FFP)
Source: Science Daily
Context: Researchers have developed a ground-breaking sensor using “frozen smoke,” or aerogels, which can detect formaldehyde in real-time at concentrations as low as eight parts per billion.
- Formaldehyde is a common indoor air pollutant emitted by various household items.
This innovation could significantly enhance indoor air quality monitoring and help mitigate health risks associated with VOCs
“Frozen smoke” is a nickname for aerogel, a silica-based material that’s the lightest solid known. Aerogel is also known as solid smoke, solid air, solid cloud, and blue smoke.
