Introduction | 引言
The Humidex is a measurement scale developed in Canada to express how hot the weather feels to the average person when relative humidity is combined with air temperature. This educational material provides both English and Chinese explanations of the Humidex scale for Chinese speakers with high school education or above.
濕度指數（Humidex）是加拿大開發的一種測量標準，用來表示當相對濕度與氣溫結合時，普通人感受到的熱度。本教材為具有高中或以上教育程度的中文使用者提供濕度指數量表的英漢雙語解釋。
What is Humidex? | 什麼是濕度指數？
The Humidex (humidity index) is a dimensionless number used to describe how hot the weather feels to an average person, by combining the effect of heat and humidity. The Humidex is widely used in Canada but similar indices like the Heat Index are used in the United States and other countries.
濕度指數（濕度指標）是一個無量綱數字，通過結合熱量和濕度的影響，來描述普通人感受到的天氣熱度。濕度指數在加拿大被廣泛使用，而類似的指標如熱指數（Heat Index）則在美國和其他國家使用。
Key Terminology | 重要術語
- Humidex: A measurement of perceived heat combining temperature and humidity
- 濕度指數: 結合溫度和濕度的體感熱度測量方法
- Relative Humidity: The amount of water vapor in the air expressed as a percentage of the maximum amount the air could hold at that temperature
- 相對濕度: 空氣中水蒸氣含量占該溫度下空氣可容納最大水蒸氣量的百分比
- Heat Stress: Physical discomfort and physiological strain caused by excessive heat
- 熱應激: 由過度熱量引起的身體不適和生理壓力
- Dew Point: The temperature at which air becomes saturated with water vapor
- 露點: 空氣變得飽和的溫度，即水蒸氣開始凝結的溫度
The Humidex Scale | 濕度指數量表
The Humidex scale was devised to measure comfort levels in extreme heat, based on the temperature and relative humidity. It provides a practical guide for evaluating heat-related risks and planning appropriate activities.
濕度指數量表是為了測量極端高溫下的舒適度而設計的，基於溫度和相對濕度。它提供了評估與熱相關風險和規劃適當活動的實用指南。
Comfort Levels | 舒適度等級
20-29: Comfortable | 舒適
- English Description: Little to no discomfort. Normal activities can be carried out without special precautions.
- 中文描述: 幾乎沒有不適感。可以不採取特殊預防措施進行正常活動。
- Example Sentence: “With a Humidex of 25, it’s a comfortable day for outdoor sports."
- 例句: “濕度指數為25，這天非常適合戶外運動。"
30-39: Some Discomfort | 有些不適
- English Description: Some discomfort, especially for those sensitive to heat. Consider reducing strenuous activities outdoors.
- 中文描述: 有些不適感，特別是對於那些對熱敏感的人。考慮減少戶外劇烈活動。
- Example Sentence: “The weather forecast predicts a Humidex of 35 tomorrow, so there might be some discomfort during the afternoon hike."
- 例句: “天氣預報預測明天的濕度指數為35，所以下午徒步時可能會有些不適。"
40-45: Uncomfortable for Everyone | 對所有人都不舒適
- English Description: Uncomfortable for most people. Avoid strenuous exercise. Stay hydrated and seek cool environments when possible.
- 中文描述: 對大多數人來說都不舒適。避免劇烈運動。保持水分補充，盡可能尋找涼爽的環境。
- Example Sentence: “With a Humidex reaching 43, the marathon organizers are considering postponing the event as it will be uncomfortable for everyone."
- 例句: “由於濕度指數達到43，馬拉松組織者正在考慮推遲比賽，因為這對所有人都會感到不舒適。"
46+: Many Types of Work Must Be Stopped | 許多類型的工作必須停止
- English Description: Dangerous levels of heat stress. Many types of outdoor work should be suspended. High risk of heat-related illnesses such as heat stroke.
- 中文描述: 危險的熱應激水平。許多類型的戶外工作應該暫停。患熱相關疾病（如中暑）的風險很高。
- Example Sentence: “The construction site has implemented its extreme heat protocol as the Humidex is expected to exceed 46 today."
- 例句: “由於今天濕度指數預計將超過46，建築工地已實施極端高溫協議。"
Practical Applications | 實際應用
Workplace Safety | 工作場所安全
Humidex readings are often used to determine when certain outdoor or physically demanding jobs should be modified or stopped to prevent heat-related illnesses.
濕度指數讀數常用於確定何時應修改或停止某些戶外或體力要求高的工作，以防止熱相關疾病。
Public Health Advisories | 公共衛生建議
Health authorities may issue warnings based on Humidex values to help the public take appropriate precautions during heat waves.
衛生部門可能會根據濕度指數值發布警告，以幫助公眾在熱浪期間採取適當的預防措施。
Planning Outdoor Activities | 規劃戶外活動
Event organizers use Humidex forecasts to schedule outdoor activities at times when heat stress will be minimized.
活動組織者使用濕度指數預報來安排戶外活動，以減少熱應激的風險。
Conclusion | 結論
Understanding the Humidex scale helps individuals and organizations make informed decisions about outdoor activities and work during hot, humid weather. This knowledge is particularly relevant in the context of climate change, as extreme heat events become more common globally.
了解濕度指數量表有助於個人和組織在炎熱潮濕的天氣中對戶外活動和工作做出明智的決定。在氣候變化的背景下，這種知識尤為重要，因為極端高溫事件在全球範圍內變得越來越普遍。
The Humidex is just one of several systems used worldwide to quantify how environmental conditions affect human comfort and health. Similar indices include the Heat Index (USA), the Apparent Temperature (Australia), and the Wet Bulb Globe Temperature (used for military and sports applications).
濕度指數只是世界各地用來量化環境條件如何影響人類舒適度和健康的幾種系統之一。類似的指標包括熱指數（美國）、體感溫度（澳大利亞）和濕球黑球溫度（用於軍事和體育應用）。
元毓說 