The Hair Loss Encyclopedia
standardized measure indicating air pollution levels and health risks
The Air Quality Index (AQI) is a standardized system used to measure and report air quality levels, indicating how clean or polluted the air is and what associated health effects might be a concern for the public. It typically ranges from 0 to 500, with higher values representing greater levels of air pollution and increased health risks, particularly for sensitive groups such as children, the elderly, and those with respiratory conditions.