🇨🇳 Licheng、中国の大気質指数（AQI）
Lichengの住民向け健康アドバイス
大気質は許容範囲です。ただし、一部の汚染物質については、ごく少数の人に中程度の健康影響が懸念される場合があります。敏感なグループは、長時間の激しい屋外活動を減らすことを検討してください。
Lichengの大気汚染：詳細な汚染物質内訳
大気質指数の見方 Licheng
Air is fresh and healthy. Safe for all outdoor activities.
Acceptable air quality, though sensitive groups should monitor comfort.
Vulnerable groups (children, elderly) should limit outdoor exertion.
Everyone begins to experience health effects. Stay indoors where possible.
Significant health impact for entire population. Emergency conditions.
Serious health alert: everyone may experience serious life-threatening effects.
Fine particles are at minimal, safe levels. Air is optimal.
Acceptable air, but haze may be present in urban areas.
Individuals with heart or lung disease should limit activity.
Particulate levels high enough to cause respiratory irritation.
Heavy haze. High risk to cardiovascular health for the public.
Lethal particulate concentrations. Critical neurological and lung risk.
Low levels of dust and coarse particles. Environment is safe.
Coarse particles may trigger coughing in sensitive groups.
Visible dust pollution. Sensitive groups should avoid heavy labor.
Widespread respiratory impacts likely for the population.
Dangerous dust and debris levels. Significant warnings issued.
Extremely high concentrations. Stay inside with filtration.
Surface ozone levels are within a safe, natural range.
Acceptable air, but sensitive individuals may feel chest tightness.
Rising ozone can trigger airway inflammation in active children.
Avoid heavy outdoor work during the hottest part of the day.
Serious lung function reduction likely across the public.
Emergency ozone levels. Risk of permanent lung tissue damage.
Nitrogen levels are optimal. Safe for everyone.
Typical background levels for high-density urban areas.
Increased risk of respiratory infections for vulnerable groups.
Significant airway inflammation likely near traffic zones.
Acute respiratory distress potential. High-risk groups stay indoors.
Toxic concentrations. Immediate health precautions required.
Carbon Monoxide levels are clean and non-toxic.
Acceptable; may affect those with specific heart conditions.
Reduced oxygen delivery to the heart may occur.
Headaches and fatigue may occur in urban canyons.
Significant cardiovascular distress. Mental confusion possible.
Lethal potential. Immediate risk of neurological collapse.
Optimal air quality with no sulfur detection.
Acceptable air; minor odors possible near industry.
Bronchoconstriction possible for active asthmatics.
Respiratory distress likely for the wider population.
Significant wheezing and shortness of breath likely.
Extreme respiratory danger. Significant life risk.
このAQIはどのように計算されますか？
上記の主要な大気質指数（AQI）は、PM2.5（微小粒子状物質）濃度に基づく米国EPA線形補間式を使用して計算されています。
- 現在のPM2.5： 25.8 µg/m³
- 計算： あなたの都市は「適度」カテゴリ（カテゴリ 2）に該当します。
注：いくつかの汚染物質（O3、NO2、SO2）が監視されていますが、PM2.5は通常最も高い健康リスクを表すため、主要な指標値の「ドライバー」として使用されています。
よくある質問
Lichengの大気汚染の主な原因は何ですか？
Lichengの汚染は、主に5.0 km/hのNNEの風、地域の交通排出、および産業活動によって引き起こされており、現在のPM2.5濃度は25.8 µg/m³です。
今日のLichengのAQIは安全ですか？
今日のAQIは82で、適度に分類されています。これは、一般人口にとって空気の質が適度であることを意味します。
Lichengの大気質 — FAQ
回答は、Lichengの現在のAQI値に基づいて更新されます。