Question

created when harmful substances build up in the air to unhealthy/ toxic levels

Answers

GPT-4o mini
The phenomenon you are referring to is commonly known as **air pollution**. Air pollution occurs when harmful substances, including particulates, biological molecules, and gases, accumulate in the atmosphere to levels that can have adverse effects on human health, the environment, and the climate.

Air pollution can originate from various sources, including:

1. **Industrial emissions**: Factories and power plants can release pollutants like sulfur dioxide (SO2), nitrogen oxides (NOx), and volatile organic compounds (VOCs).

2. **Vehicle emissions**: Cars and trucks emit carbon monoxide (CO), nitrogen oxides (NOx), and particulate matter (PM), which can contribute significantly to urban air pollution.

3. **Household products**: Many household cleaners, paints, and solvents release VOCs that can contribute to indoor air pollution.

4. **Agriculture**: Pesticides, fertilizers, and livestock emissions can introduce harmful substances into the air.

5. **Natural sources**: Wildfires, volcanic eruptions, and dust storms can also contribute to air pollution.

Air quality is measured using various indices, such as the Air Quality Index (AQI), which indicates how polluted the air currently is and what associated health effects might be of concern for the general population. High levels of air pollution can lead to respiratory problems, cardiovascular diseases, and other health issues, underscoring the importance of monitoring and regulating air quality.

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