The CLEAR Program

The CLEAR Program 2017-01-30T14:59:40+00:00

CLEAR: Collaborative Learning through Environmental and Aerosol Research

The CLEAR Program is designed to bring the research and science of CAICE to the public. CLEAR has developed particle counters, called CLEAR-CAICEs (pronounced CLEAR-Cases), that can be used by students and citizen scientists alike to study the aerosols in their community. Aerosols are solid or liquid particles that are suspended in the air, and tend to have very complex chemistry. CLEAR is an educational initiative that is designed to engage students in learning about the chemistry of aerosols, climate, and the environment by encouraging collaboration and experimentation. 

To learn more about aerosols, check out our educational materials, Learning with CLEAR!

Learning with CLEAR
Getting Started with CLEAR (Current Participants Only)

CLEAR in the Classroom

CLEAR seeks to broaden the reach of the university by  bringing CAICE research directly to school campuses. In so doing, CLEAR will involve students directly in the research process and increase interest in environmental chemistry by creating a collaborative learning environment between CAICE scientists, students, and the public.

Through the CLEAR Program, students will explore:

  • Aerosol Sources and Impacts- Students will understand the sources of aerosol particles in the environment, how the sources of aerosol particles affect their chemical composition, and the impacts of aerosols on health and climate.
  • Experimental Design- Students will be able to formulate hypotheses about their environment and design controlled experiments.
  • Measurements and Instrumentation- Students will understand how to collect and interpret data, and will gain insight into how chemists design instruments to learn about the world around us.


Through a collaboration with Qualcomm Institute, CAICE is developing particle counters, called CLEAR-CAICEs (pronounced CLEAR-Cases), that can be used by students, citizen scientists, and university researchers to study levels of particulate matter in the atmosphere.

These instruments use an air pump to generate a flow of air through an optical particle detector, which counts the number of particles in the sample. The optical particle detector then transmits the data to a microprocessor computer or to an eternal drive for analysis. To read more about how the instrument works, please see our CLEAR-CAICE page.

Get Involved in the CLEAR Program

Are you an instructor or community organization that is interested in becoming a part of the CLEAR program? Please contact caice (AT) ucsd (DOT) edu for details!