Images and Media: soot-particle.jpg

This website is an ARCHIVED version of NOAA Climate.gov as of June 25, 2025.
Content is not being updated or maintained, and some links may no longer work.

File name: soot-particle.jpg

Original Resolution (pixels): 713 × 812

File Size: 409 KB (MIME Type: image/jpeg)

Date Published: May 14, 2025

Alternate Text: highly magnified photo of soot particles

View image full size

Download file

Image caption

A highly magnified photo of soot particles illuminated with a laser. At just a few hundred nanometers in length (a single sheet of paper is about 100,000 nanometers thick), these particles can easily enter human airways. NASA image.