> For the complete documentation index, see [llms.txt](https://resources.digitalmoment.org/micro-bit-data-and-climate-change/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://resources.digitalmoment.org/micro-bit-data-and-climate-change/showcase-projects/01-air-pollution.md).

# 01 - Air Pollution

<figure><img src="/files/M3Mca6pIeMQkaMgxJiaV" alt=""><figcaption><p>Photo by <a href="https://unsplash.com/@punkidu?utm_source=unsplash&#x26;utm_medium=referral&#x26;utm_content=creditCopyText">Ella Ivanescu</a> on <a href="https://unsplash.com/s/photos/air-pollution?utm_source=unsplash&#x26;utm_medium=referral&#x26;utm_content=creditCopyText">Unsplash</a></p></figcaption></figure>

We are starting with one activity don with two of our tools.  We will visualize data related to air pollution using a servo motor and also with a neopixel.

### Description

These activities visualize **historical data,** from 1990 to 2014, tracking air quality represented as the amount of particulate matter (**pm**) in the air. One of them will use a servo motor and the other will use a neopixel grid.

**Particulate matter definition**

* > Particulate matter is a mixture of solid particles and liquid droplets of varying size and chemical composition that are suspended in the air. It is classified as either primary particles emitted directly into the air or as secondary particles formed in the air by chemical or physical processes. [**source**](https://agriculture.canada.ca/en/agriculture-and-environment/climate-change-and-air-quality/particulate-matter-indicator)

In the next activity, we visualizating data using the **servo** **motor**.

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<summary><span data-gb-custom-inline data-tag="emoji" data-code="1f34e">🍎</span>Teacher's Corner - Particulate Matter</summary>

Particulate matter is classified into two different sizes:

* > **PM2.5**
  >
  > Particles with an aerodynamic diameter of less than 2.5 micrometres. These particles are easily inhaled into the lower airways (the gas-exchange regions of the lungs) and deposited in the lungs, causing adverse health effects.&#x20;
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  > **PM10**
  >
  > &#x20;Particles with an aerodynamic diameter of less than 10 micrometres, including PM2.5. These particles can be inhaled into and settle in the bronchi and lungs, leading to health problems. [**source**](https://agriculture.canada.ca/en/agriculture-and-environment/climate-change-and-air-quality/particulate-matter-indicator)

Find more information about this topic on this site [**LINK**](https://agriculture.canada.ca/en/agriculture-and-environment/climate-change-and-air-quality/particulate-matter-indicator)

</details>