What is Ultrafine particulate matter?

Ultrafine particulate matter is like dust that’s super tiny, so tiny, you can’t see it.

Imagine you have a bag of powdered sugar. That's already really fine. Now imagine the powder is broken down into pieces so small, they're like the size of a single grain of sand from a beach that's been squished by a giant foot. These are ultrafine particles, they’re in the air we breathe, and they can sneak into our lungs and even go deeper into our body.

How Small Are They?

These particles are so small, they're measured in nanometers, which is like comparing a grain of sand to a mountain. A single ultrafine particle might be about 100 times smaller than the tip of a pencil. That means millions of them could fit on the head of a pin!

Where Do They Come From?

They come from things like cars, factories, and even some kinds of cooking, like when you fry food or burn candles. These tiny particles float around in the air, sometimes hiding in smog or smoke.

Because they’re so small, they can get into places in our body that bigger dust particles can’t, which is why it's important to know about them! Ultrafine particulate matter is like dust that’s super tiny, so tiny, you can’t see it.

Imagine you have a bag of powdered sugar. That's already really fine. Now imagine the powder is broken down into pieces so small, they're like the size of a single grain of sand from a beach that's been squished by a giant foot. These are ultrafine particles, they’re in the air we breathe, and they can sneak into our lungs and even go deeper into our body.

How Small Are They?

These particles are so small, they're measured in nanometers, which is like comparing a grain of sand to a mountain. A single ultrafine particle might be about 100 times smaller than the tip of a pencil. That means millions of them could fit on the head of a pin!

Where Do They Come From?

They come from things like cars, factories, and even some kinds of cooking, like when you fry food or burn candles. These tiny particles float around in the air, sometimes hiding in smog or smoke.

Because they’re so small, they can get into places in our body that bigger dust particles can’t, which is why it's important to know about them!

Take the quiz →

Examples

  1. Tiny invisible particles in the air, like from car exhaust or burning wood.
  2. These particles are so small that they can get deep into your lungs when you breathe them in.
  3. They might cause coughing or make it harder to breathe, especially for people with asthma.

Ask a question

See also

Discussion

Recent activity