Measurements of non-volatile aerosols with a VTDMA and their correlations with carbonaceous aerosols in Guangzhou, China

Heidi H.Y. Cheung; Haobo Tan; Hanbing Xu; Fei Li; Cheng Wu; Jian Z. Yu; Chak K. Chan

doi:10.5194/acp-16-8431-2016

Measurements of non-volatile aerosols with a VTDMA and their correlations with carbonaceous aerosols in Guangzhou, China

Heidi H.Y. Cheung, Haobo Tan, Hanbing Xu, Fei Li, Cheng Wu, Jian Z. Yu, Chak K. Chan

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25 Scopus citations

Abstract

Simultaneous measurements of aerosol volatility and carbonaceous matters were conducted at a suburban site in Guangzhou, China, in February and March 2014 using a volatility tandem differential mobility analyzer (VTDMA) and an organic carbon/elemental carbon (OC = EC) analyzer. Low volatility (LV) particles, with a volatility shrink factor (VSF) at 300 °C exceeding 0.9, contributed 5% of number concentrations of the 40 nm particles and 11-15% of the 80-300 nm particles. They were composed of non-volatile material externally mixed with volatile material, and therefore did not evaporate significantly at 300 °C. Non-volatile material mixed internally with the volatile material was referred to as medium volatility (MV, 0.4< VSF < 0.9) and high volatility (HV, VSF

Original language	English (US)
Pages (from-to)	8431-8446
Number of pages	16
Journal	Atmospheric Chemistry and Physics
Volume	16
Issue number	13
DOIs	https://doi.org/10.5194/acp-16-8431-2016
State	Published - Jul 12 2016
Externally published	Yes

ASJC Scopus subject areas

Atmospheric Science

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10.5194/acp-16-8431-2016

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title = "Measurements of non-volatile aerosols with a VTDMA and their correlations with carbonaceous aerosols in Guangzhou, China",

abstract = "Simultaneous measurements of aerosol volatility and carbonaceous matters were conducted at a suburban site in Guangzhou, China, in February and March 2014 using a volatility tandem differential mobility analyzer (VTDMA) and an organic carbon/elemental carbon (OC = EC) analyzer. Low volatility (LV) particles, with a volatility shrink factor (VSF) at 300 °C exceeding 0.9, contributed 5% of number concentrations of the 40 nm particles and 11-15% of the 80-300 nm particles. They were composed of non-volatile material externally mixed with volatile material, and therefore did not evaporate significantly at 300 °C. Non-volatile material mixed internally with the volatile material was referred to as medium volatility (MV, 0.4< VSF < 0.9) and high volatility (HV, VSF",

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AU - Cheung, Heidi H.Y.

AU - Tan, Haobo

AU - Xu, Hanbing

AU - Li, Fei

AU - Wu, Cheng

AU - Yu, Jian Z.

AU - Chan, Chak K.

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PY - 2016/7/12

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N2 - Simultaneous measurements of aerosol volatility and carbonaceous matters were conducted at a suburban site in Guangzhou, China, in February and March 2014 using a volatility tandem differential mobility analyzer (VTDMA) and an organic carbon/elemental carbon (OC = EC) analyzer. Low volatility (LV) particles, with a volatility shrink factor (VSF) at 300 °C exceeding 0.9, contributed 5% of number concentrations of the 40 nm particles and 11-15% of the 80-300 nm particles. They were composed of non-volatile material externally mixed with volatile material, and therefore did not evaporate significantly at 300 °C. Non-volatile material mixed internally with the volatile material was referred to as medium volatility (MV, 0.4< VSF < 0.9) and high volatility (HV, VSF

AB - Simultaneous measurements of aerosol volatility and carbonaceous matters were conducted at a suburban site in Guangzhou, China, in February and March 2014 using a volatility tandem differential mobility analyzer (VTDMA) and an organic carbon/elemental carbon (OC = EC) analyzer. Low volatility (LV) particles, with a volatility shrink factor (VSF) at 300 °C exceeding 0.9, contributed 5% of number concentrations of the 40 nm particles and 11-15% of the 80-300 nm particles. They were composed of non-volatile material externally mixed with volatile material, and therefore did not evaporate significantly at 300 °C. Non-volatile material mixed internally with the volatile material was referred to as medium volatility (MV, 0.4< VSF < 0.9) and high volatility (HV, VSF

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Measurements of non-volatile aerosols with a VTDMA and their correlations with carbonaceous aerosols in Guangzhou, China

Abstract

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