A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Research Triangle Park particulate matter panel study: PM mass concentration relationships
AbstractThe US Environmental Protection Agency has recently performed the Research Triangle Park Particulate Matter Panel Study. This was a 1-year investigation of PM and related co-pollutants involving participants living within the RTP area of North Carolina. Primary goals were to characterize the relationships between ambient and residential PM measures to those obtained from personal exposure monitoring and estimate ambient source contributions to personal and indoor mass concentrations. A total of 38 participants living in 37 homes were involved in personal, residential indoor, residential outdoor and ambient PM2.5 exposure monitoring. Participants were 30 non-smoking hypertensive African-Americans living in a low-moderate SES neighborhood (SE Raleigh, NC) and a cohort of eight individuals having implanted cardiac defibrillators (Chapel Hill, NC). Residential and ambient monitoring of PM10 and PM10–2.5 (coarse by differential) was also performed. The volunteers were monitored for seven consecutive days during each of four seasons (summer 2000, fall 2000, winter 2001, spring 2001). Individual PM2.5 personal exposure concentrations ranged from 4 to 218μgm−3 during the study. The highest personal exposures were determined to be the result of passive environmental tobacco exposures. Subsequently, ∼7% of the total number of personal exposure trials were excluded to minimize this pollutant's effect upon the overall analysis. Results indicated that a pooled data set (seasons, cohorts, residences, participants) was appropriate for investigation of the basic mass concentration relationships. Daily personal PM2.5 mass concentrations were typically higher than their associated residential or ambient measurements (mean personal=23.0, indoor=19.1, outdoor=19.3, ambient=19.2μgm−3). Mean personal PM2.5 exposures were observed to be only moderately correlated to ambient PM2.5 concentrations (r=0.39).
The Research Triangle Park particulate matter panel study: PM mass concentration relationships
AbstractThe US Environmental Protection Agency has recently performed the Research Triangle Park Particulate Matter Panel Study. This was a 1-year investigation of PM and related co-pollutants involving participants living within the RTP area of North Carolina. Primary goals were to characterize the relationships between ambient and residential PM measures to those obtained from personal exposure monitoring and estimate ambient source contributions to personal and indoor mass concentrations. A total of 38 participants living in 37 homes were involved in personal, residential indoor, residential outdoor and ambient PM2.5 exposure monitoring. Participants were 30 non-smoking hypertensive African-Americans living in a low-moderate SES neighborhood (SE Raleigh, NC) and a cohort of eight individuals having implanted cardiac defibrillators (Chapel Hill, NC). Residential and ambient monitoring of PM10 and PM10–2.5 (coarse by differential) was also performed. The volunteers were monitored for seven consecutive days during each of four seasons (summer 2000, fall 2000, winter 2001, spring 2001). Individual PM2.5 personal exposure concentrations ranged from 4 to 218μgm−3 during the study. The highest personal exposures were determined to be the result of passive environmental tobacco exposures. Subsequently, ∼7% of the total number of personal exposure trials were excluded to minimize this pollutant's effect upon the overall analysis. Results indicated that a pooled data set (seasons, cohorts, residences, participants) was appropriate for investigation of the basic mass concentration relationships. Daily personal PM2.5 mass concentrations were typically higher than their associated residential or ambient measurements (mean personal=23.0, indoor=19.1, outdoor=19.3, ambient=19.2μgm−3). Mean personal PM2.5 exposures were observed to be only moderately correlated to ambient PM2.5 concentrations (r=0.39).
The Research Triangle Park particulate matter panel study: PM mass concentration relationships
Williams, Ron (author) / Suggs, Jack (author) / Rea, Anne (author) / Leovic, Kelly (author) / Vette, Alan (author) / Croghan, Carry (author) / Sheldon, Linda (author) / Rodes, Charles (author) / Thornburg, Jonathan (author) / Ejire, Ademola (author)
Atmospheric Environment ; 37 ; 5349-5363
2003-09-04
15 pages
Article (Journal)
Electronic Resource
English
Ambient air monitoring , Personal exposure monitoring , Susceptible subpopulations , AIRS, US EPA Aerometric Information Retrieval System , CO, Carbon monoxide , EC-OC, Elemental carbon-organic carbon , ETS, Environmental tobacco smoke , FRM, Federal reference method , HI, Harvard Impactor , HEPA, High efficiency particulate , lpm, Liters per minute , O<inf>3</inf>, Ozone , pDR, Personal DataRam , PEM, Personal Environmental Monitor , PFT, Perfluorcarbon tracer , PM, Particulate matter, R&P, Rupprecht & Patashnick , RSD, Relative standard deviation , RTP, Research Triangle Park, NC , SES, Socio-economic status , std, Standard deviation , TEOM, Tapered element oscillating microbalance
Indoor/outdoor particulate matter number and mass concentration in modern offices
| Online Contents | 2015