AQI Categories and Health Implications
The Air Quality Index (AQI) is a system used to report and forecast the level of air pollution. It converts pollutant concentrations into a number from 0 to 500, making air quality information easier for the public to understand. Each AQI value corresponds to a general health category and associated color code.
Different numerical ranges of the AQI indicate varying levels of air pollution and potential health risks. It's important to know these ranges to take appropriate precautions.
AQI Levels Explained
The standard AQI categories and their corresponding numerical ranges are defined as follows:
| AQI Range | Category Name | General Health Implication |
|---|---|---|
| 0-50 | Good | Air quality is considered satisfactory, and air pollution poses little or no risk. |
| 51-100 | Moderate | Air quality is acceptable. However, there might be a moderate health concern for a very small number of people who are unusually sensitive to air pollution. |
| 101-150 | Unhealthy for Sensitive Groups | Members of sensitive groups (like people with asthma, heart disease, children, and the elderly) may experience health effects. The general public is less likely to be affected. |
| 151-200 | Unhealthy | Everyone may start to experience health effects; members of sensitive groups may experience more serious health effects. |
| 201-300 | Very Unhealthy | A health alert is issued, meaning everyone may experience more serious health effects. |
| 301-500 | Hazardous | Health warnings of emergency conditions are issued, and the entire population is more likely to be affected. |
Identifying the Correct AQI Range
The question specifically asks to identify the AQI range for the category "Unhealthy for Sensitive Groups". Reviewing the standard categories detailed above:
- The AQI range of 101-150 is designated as "Unhealthy for Sensitive Groups".
- This means that while most people might not experience adverse effects, individuals within sensitive populations could begin to feel the impact of air pollution.
Therefore, the AQI range corresponding to "Unhealthy for Sensitive Groups" is 101-150.
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