Year: 2002
Type: conference-paper
Abstract: Fine particle concentrations were measured simultaneously at three locations: a regional monitoring site in Fresno, California, a backyard of an unoccupied residence in Clovis, California located 6 km northeast of the regional site; and indoors at the same residence.Measurements included 10-min determination of PM 2.5 nitrate, sulfate and carbon using an automated collection and vaporization system, and black carbon measured by light attenuation through a filter deposit.Specific outdoor PM 2.5 constituents were compared to assess the appropriateness of using regional data to model indoor concentrations from outdoor sources.The outdoor data show that, in general, the regional results provide a good representation of the concentrations seen at the building exterior.The indoor concentrations showed considerable attenuation as well as a broadening and time-lag for the concentration peaks.The concentration reduction was the largest for PM 2.5 nitrate, which appears to undergo phase changes in addition to indoor deposition and penetration losses.
Language: English
Subfield: Atmospheric Science
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
Funder: U.S. Department of Energy
Awards: G1398330795, G1643223109, G193590374
OpenAlex ID: W1488763453