Exhaust particle size distribution measurements at the Tuscarora Mountain tunnel

被引：61

作者：

Abu-Allaban, M ^{[1
]}

Coulomb, W ^{[1
]}

Gertler, AW ^{[1
]}

Gillies, J ^{[1
]}

Pierson, WR ^{[1
]}

Rogers, CF ^{[1
]}

Sagebiel, JC ^{[1
]}

Tarnay, L ^{[1
]}

机构：

[1] Univ & Community Coll Syst Nevada, Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA

来源：

AEROSOL SCIENCE AND TECHNOLOGY | 2002年 / 36卷 / 06期

关键词：

D O I：

10.1080/02786820290038401

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

On-road particle size distributions were measured at the Tuscarora Mountain tunnel on the Pennsylvania Turnpike in May 1999. The data were obtained using a scanning mobility particle sizer. The nucleation modes of the size distributions contained most of the particles on a number concentration basis and exhibited peak diameters ranging from 11 to 17 nm. This observation is consistent with previous calculations and measurements, indicating that significant numbers of ultrafine aerosol particles can be expected in close proximity to busy motorways. The experiment provided 4 case studies for which the tunnel inlet data could be used to correct data obtained at the outlet, allowing for estimates of particle production within the tunnel. Exhaust particle production rates per vehicle kilometer were estimated; the results are presented with the caveat that the measurements were affected by ambient dilution. The 4 case study nucleation mode sizes varied inversely with ambient temperature. The light-duty vehicle contributions to the ultrafine particle distributions were apparently dominated by the heavy-duty vehicle contributions.

引用

页码：771 / 789

页数：19

共 19 条

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