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Most of the work addressing health hazards of new ER technologies has been limited to in vitro assays (primarily bacterial mutagenicity) of exhaust sample extracts.
The compositional data were structured in an X-matrix with one row per exhaust sample (i.e., a total of seven rows) and one column per predictor variable (initially, 184 compositional parameters).
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The same trend is observed in the exhaust samples, albeit the differences are much less.
Exhaust sampling was carried out on diluted exhaust in a dilution tunnel with a constant-volume sampling system.
Engine particulate exhaust samples were subjected to individual particle analysis and bulk physico-chemical characterization with respect to polycyclic aromatics, water-soluble organic carbon and inorganic ions.
We report on the structure of a set of diesel exhaust samples that were obtained from reference diesel fuel and diesel fuel mixed with ferrocene.
The results show that the differences in the jet development with respect to the wall cause variations in the soot structures and sizes of aggregates and primary particles in both the in-flame and exhaust samples.
Data from exhaust sampling of NOx and thermocouple measurements of temperature are reported along with results from simultaneous measurement of temperature and OH using Rayleigh scattering and laser induced predissociation fluorescence, respectively.
The developed operational system consists of six well-integrated and interconnected parts: the combustion chamber, a reactant storage and metering system, the reactant delivery nozzle, the exhaust sampling port, an externally located microphone, and a CCD camera.
The recovery for PM was 80 100% for gasoline exhaust samples and 65 70% for diesel exhaust samples.
Of particular interest is the prevalence of the three dinitropyrenes in the diesel exhaust samples.
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