Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

Digital Exhibits: Haagen-Smit in the smog

Haagen-Smit in the smog

Photo ID 1.15.2-28

Arie Jan Haagen-Smit, a Dutch-born organic chemist and specialist in plant growth hormones, first linked smog to automobile emissions in Los Angeles. He identified the chemical ozone and created a test for determining the intensity of smog. He was active in implementing measures for its abatement in California and nationwide. Photo from 1956.