Water-soluble ions in nano/ultrafine/fine/coarse particles collected near a busy road and at a rural site

Chih Chung Lin; Shui Jen Chen; Kuo Lin Huang; Wen Jhy Lee; Wen Yinn Lin; Chiu Jung Liao; Hso Chi Chaung; Chuen Huey Chiu

doi:10.1016/j.envpol.2006.04.023

Water-soluble ions in nano/ultrafine/fine/coarse particles collected near a busy road and at a rural site

Chih Chung Lin
, Shui Jen Chen
, Kuo Lin Huang
, Wen Jhy Lee
, Wen Yinn Lin
, Chiu Jung Liao
, Hso Chi Chaung
, Chuen Huey Chiu

Graduate Institute of Environmental Engineering and Management

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

This study investigated water-soluble ions in the sized particles (particularly nano (PM_0.01-0.056)/ultrafine (PM_0.01-0.1)) collected using MOUDI and Nano-MOUDI samplers near a busy road site and at a rural site. The analytical results demonstrate that nano and coarse particles exhibited the highest (16.3%) and lowest (8.37%) nitrate mass ratios, respectively. The mass ratio of NO₃^- was higher than that of SO₄^2- in all the sized particles at the traffic site. The secondary aerosols all displayed trimodal distributions. The aerosols in ultrafine particles collected at the roadside site exhibited Aitken mode distributions indicating they were of local origin. This finding was not observed for those ultrafine particles collected at the rural site. The mass median diameters (MMDs) of the nano, ultrafine, and fine particles were smaller at the traffic site than at the rural site, possibly related to the contribution of mobile engine emissions.

Original language	English
Pages (from-to)	562-570
Number of pages	9
Journal	Environmental Pollution
Volume	145
Issue number	2
DOIs	https://doi.org/10.1016/j.envpol.2006.04.023
State	Published - Jan 2007

Bibliographical note

Funding Information:
The authors would like to thank the National Science Council the Republic of China, Taiwan for financially supporting this research under Contract No. NSC-93-2211-E-020-008 and NSC-94-2211-E-020-001.

Keywords

Nanoparticles
Size distributions
Traffic-associated particles
Ultrafine
Water-soluble ions

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10.1016/j.envpol.2006.04.023

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title = "Water-soluble ions in nano/ultrafine/fine/coarse particles collected near a busy road and at a rural site",

abstract = "This study investigated water-soluble ions in the sized particles (particularly nano (PM0.01-0.056)/ultrafine (PM0.01-0.1)) collected using MOUDI and Nano-MOUDI samplers near a busy road site and at a rural site. The analytical results demonstrate that nano and coarse particles exhibited the highest (16.3\%) and lowest (8.37\%) nitrate mass ratios, respectively. The mass ratio of NO3- was higher than that of SO42- in all the sized particles at the traffic site. The secondary aerosols all displayed trimodal distributions. The aerosols in ultrafine particles collected at the roadside site exhibited Aitken mode distributions indicating they were of local origin. This finding was not observed for those ultrafine particles collected at the rural site. The mass median diameters (MMDs) of the nano, ultrafine, and fine particles were smaller at the traffic site than at the rural site, possibly related to the contribution of mobile engine emissions.",

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note = "Funding Information: The authors would like to thank the National Science Council the Republic of China, Taiwan for financially supporting this research under Contract No. NSC-93-2211-E-020-008 and NSC-94-2211-E-020-001. ",

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AU - Lin, Chih Chung

AU - Chen, Shui Jen

AU - Huang, Kuo Lin

AU - Lee, Wen Jhy

AU - Lin, Wen Yinn

AU - Liao, Chiu Jung

AU - Chaung, Hso Chi

AU - Chiu, Chuen Huey

N1 - Funding Information: The authors would like to thank the National Science Council the Republic of China, Taiwan for financially supporting this research under Contract No. NSC-93-2211-E-020-008 and NSC-94-2211-E-020-001.

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N2 - This study investigated water-soluble ions in the sized particles (particularly nano (PM0.01-0.056)/ultrafine (PM0.01-0.1)) collected using MOUDI and Nano-MOUDI samplers near a busy road site and at a rural site. The analytical results demonstrate that nano and coarse particles exhibited the highest (16.3%) and lowest (8.37%) nitrate mass ratios, respectively. The mass ratio of NO3- was higher than that of SO42- in all the sized particles at the traffic site. The secondary aerosols all displayed trimodal distributions. The aerosols in ultrafine particles collected at the roadside site exhibited Aitken mode distributions indicating they were of local origin. This finding was not observed for those ultrafine particles collected at the rural site. The mass median diameters (MMDs) of the nano, ultrafine, and fine particles were smaller at the traffic site than at the rural site, possibly related to the contribution of mobile engine emissions.

AB - This study investigated water-soluble ions in the sized particles (particularly nano (PM0.01-0.056)/ultrafine (PM0.01-0.1)) collected using MOUDI and Nano-MOUDI samplers near a busy road site and at a rural site. The analytical results demonstrate that nano and coarse particles exhibited the highest (16.3%) and lowest (8.37%) nitrate mass ratios, respectively. The mass ratio of NO3- was higher than that of SO42- in all the sized particles at the traffic site. The secondary aerosols all displayed trimodal distributions. The aerosols in ultrafine particles collected at the roadside site exhibited Aitken mode distributions indicating they were of local origin. This finding was not observed for those ultrafine particles collected at the rural site. The mass median diameters (MMDs) of the nano, ultrafine, and fine particles were smaller at the traffic site than at the rural site, possibly related to the contribution of mobile engine emissions.

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Water-soluble ions in nano/ultrafine/fine/coarse particles collected near a busy road and at a rural site

Abstract

Bibliographical note

Keywords

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