Project at a Glance

Title: Determination of the elemental carbon, organic compounds, and source contributions to atmospheric particles during the Southern California Children's Health Study.

Principal Investigator / Author(s): Cass, Glen R

Contractor: California Institute of Technology

Contract Number: 98-320

Research Program Area: Health & Exposure

Topic Areas: Health Effects of Air Pollution, Vulnerable Populations


A network of air monitoring sites have been operating as part of the Southern California Children's Health Study since 1994. Concentrations of fine particle mass and ions, as well as gas-phase acids, have been measured continuously since 1994. This report presents the particulate organic carbon (OC) and elemental carbon (EC) concentrations measured during the first five years of this monitoring program. The OC / EC data show seasonal and annual trends as well as spatial trends in carbon particle concentrations across the southern half of California. These data will assist the Children's Health Study investigations in the interpretation of their health effects data.

For questions regarding this research project, including available data and progress status, contact: Research Division staff at (916) 445-0753

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