Chapter one: exposure measurements.

Judith C Chow; Johann P Engelbrecht; Natalie C G Freeman; Jamal Hisham Hashim; Matti Jantunen; Jon-Pierre Michaud; Sandra Saenz de Tejada; John G Watson; Fusheng Wei; William E Wilson; Mayayuki Yasuno; Tan Zhu

doi:10.1016/s0045-6535(02)00233-3

PubMed · 12492156

Chapter one: exposure measurements.

Judith C Chow·Johann P Engelbrecht·Natalie C G Freeman·Jamal Hisham Hashim·Matti Jantunen·Jon-Pierre Michaud·Sandra Saenz de Tejada·John G Watson·Fusheng Wei·William E Wilson·Mayayuki Yasuno·Tan Zhu

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Abstract

Determining human exposure to suspended particulate concentrations requires measurements that quantify different particle properties in microenvironments where people live, work, and play. Particle mass, size, and chemical composition are important exposure variables, and these are typically measured with time-integrated samples on filters that are later submitted to laboratory analyses. This requires substantial sample handling, quality assurance, and data reduction. Newer technologies are being developed that allow in-situ, time-resolved measurements for mass, carbon, sulfate, nitrate, particle size, and other variables. These are large measurement systems that are more suitable for fixed monitoring sites than for personal applications. Human exposure studies need to be designed to accomplish specific objectives rather than to serve too many purposes. Resources need to be divided among study design, field sampling, laboratory analysis, quality assurance, data management, and data analysis phases. Many exposure projects allocated too little to the non-measurement activities.

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Judith C Chow, Johann P Engelbrecht, Natalie C G Freeman, Jamal Hisham Hashim, Matti Jantunen, Jon-Pierre Michaud, Sandra Saenz de Tejada, John G Watson, Fusheng Wei, William E Wilson, Mayayuki Yasuno, Tan Zhu. 2002. Chapter one: exposure measurements.. https://doi.org/10.1016/s0045-6535(02)00233-3

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