Exact(1)
Exposures included outdoor home daily particle mass [particulate matter < 0.25, 0.25 2.5, and 2.5 10 μm in aerodynamic diameter (PM0.25, PM0.25 2.5, PM2.5 10)], and hourly elemental and black carbon (EC BC), estimated primary and secondary organic carbon (OCpri, SOC), particle number (PN), carbon monoxide (CO), and nitrogen oxides nitrogen dioxide (NOx NO2).
Similar(59)
We measured hourly total PM2.5 OC and elemental carbon (EC) using the OC_EC Analyzer (model 3F; Sunset Laboratory Inc., Tigard, OR, USA) and then estimated exposure to carbonaceous aerosol classes characterized by primary and secondary sources using the "EC tracer method" (Cabada et al 2004; Polidori et al. 2007).
We measured personal hourly PM2.5 mass, 24-hr PM2.5 elemental and organic carbon (EC OC), and 24-hr NO2, and the same 24-hr average outdoor central-site ambient) exposures.
Sequential eight hourly PM10 samples were collected and analyzed for the elemental signatures associated with the tracer and other sources.
We measured indoor and outdoor home daily size-fractionated PM mass, and hourly pollutant gases, total particle number (PN), fine PM elemental carbon (EC) and organic carbon (OC), estimated secondary organic aerosol (SOA) and primary OC (OCpri) from total OC, and black carbon (BC).
Elemental carbon (EC) and organic carbon (OC) were determined hourly from an ambient carbon monitor (ACM 5400, Rupprecht & Patashnick, Co., Inc., Albany, NY, USA) after 17 December 2000.
"Elemental, elemental," he said.
Elemental force meets elemental force.
The hourly recorded Raman spectra are characterized using factor analytic methods and a linear model for quantitative determination of the apparent elemental carbon (EC) filter loading is derived.
It is elemental.
The weather changes hourly.
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