What is the air quality index? ——Hot topics and data analysis on the entire network in the past 10 days
Recently, air quality issues have once again become the focus of public attention. With the continued impact of climate change and industrial activities, weather phenomena such as haze and sandstorms have appeared in many places around the world, triggering widespread discussions. This article will analyze the current air quality status based on the hot topics on the Internet in the past 10 days, and provide structured data for readers' reference.
1. Hot air quality topics across the Internet in the past 10 days
1.Sandstorms hit many places in the north: Affected by strong winds, Inner Mongolia, Beijing and other places experienced severe sand and dust weather, with visibility plummeting and PM10 index soaring.
2.Smog persists in the South: Due to calm weather and accumulation of pollutants in the Yangtze River Delta and Pearl River Delta regions, the AQI (Air Quality Index) has exceeded 100 many times, reaching mild to moderate pollution levels.
3.New energy vehicles and air quality improvement: Many local governments have promoted new energy vehicle policies, and netizens are hotly discussing their long-term impact on air quality.
4.International air quality comparison: A comparison chart of AQI between European, American and Asian cities was widely forwarded on social media, triggering discussions on pollution control.
2. Air quality data of major cities (average of last 10 days)
| city | AQI range | Main pollutants | pollution level |
|---|---|---|---|
| Beijing | 120-180 | PM2.5, PM10 | light-moderate pollution |
| Shanghai | 90-130 | PM2.5, O3 | Good-lightly contaminated |
| Guangzhou | 80-110 | PM2.5 | good |
| Chengdu | 110-150 | PM2.5 | light pollution |
| Xi'an | 130-200 | PM10 | moderate pollution |
3. Interpretation of Air Quality Index (AQI) classification
| AQI range | air quality level | health effects | Recommended actions |
|---|---|---|---|
| 0-50 | Excellent | No impact | normal activities |
| 51-100 | good | Very few sensitive groups are affected | Sensitive people should reduce outdoor activities |
| 101-150 | light pollution | Exacerbation of symptoms in sensitive groups | Reduce prolonged outdoor activities |
| 151-200 | moderate pollution | Symptoms in healthy people | Reduce outdoor activities and wear masks |
| 201-300 | heavy pollution | Healthy people have obvious symptoms | avoid outdoor activities |
| 300+ | serious pollution | Reduced exercise tolerance in healthy people | avoid going out |
4. Suggestions for improving air quality
1.personal level: Reduce the use of private cars and choose public transportation; avoid open burning; pay attention to air quality forecasts and arrange outdoor activities reasonably.
2.social level: Promote clean energy; strengthen industrial emission supervision; increase urban greening area.
3.policy level: Improve the air quality monitoring network; formulate stricter emission standards; promote regional joint prevention and control mechanisms.
5. Forecast of future trends
According to the analysis of the meteorological department and environmental protection agencies, the sand and dust weather in the northern region will gradually weaken in the next week, but some areas in the south may still be affected by calm weather and suffer from persistent haze. The public is advised to pay attention to local air quality forecasts in a timely manner and take protective measures.
Air quality is closely related to the health of each of us. By understanding the AQI index and its meaning, we can better protect the health of ourselves and our families. At the same time, start from yourself and contribute to improving the environment.
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