Particle number size distribution and new particle formation under the influence of biomass burning at a high altitude background site at Mt. Yulong (3410 m), China

Shang, Dongjie; Hu, Min; Zheng, Jie; Qin, Yanhong; Du, Zhuofei; Li, Mengren; Fang, Jingyao; Peng, Jianfei; Wu, Yusheng; Lü, Sihua; Guo, Song

doi:10.5194/acp-18-15687-2018

Cited by 30 publications

(46 citation statements)

References 71 publications

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“…Heng (Nie et al, 2014), Mount Waliguan (Kivekas et al, 2009), and Mt. Yulong (Shang et al, 2018). Lv et al (2018) conducted observations during the different seasons in 2004 and 2005 at the summit of Mt.…”

Section: Npf At High Elevationmentioning

confidence: 99%

New Particle Formation in the Atmosphere: From Molecular Clusters to Global Climate

et al. 2019

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New particle formation (NPF) represents the first step in the complex processes leading to formation of cloud condensation nuclei. Newly formed nanoparticles affect human health, air quality, weather, and climate. This review provides a brief history, synthesizes recent significant progresses, and outlines the challenges and future directions for research relevant to NPF. New developments include the emergence of state‐of‐the‐art instruments that measure prenucleation clusters and newly nucleated nanoparticles down to about 1 nm; systematic laboratory studies of multicomponent nucleation systems, including collaborative experiments conducted in the Cosmics Leaving Outdoor Droplets chamber at CERN; observations of NPF in different types of forests, extremely polluted urban locations, coastal sites, polar regions, and high‐elevation sites; and improved nucleation theories and parameterizations to account for NPF in atmospheric models. The challenges include the lack of understanding of the fundamental chemical mechanisms responsible for aerosol nucleation and growth under diverse environments, the effects of SO2 and NOx on NPF, and the contribution of anthropogenic organic compounds to NPF. It is also critical to develop instruments that can detect chemical composition of particles from 3 to 20 nm and improve parameterizations to represent NPF over a wide range of atmospheric conditions of chemical precursor, temperature, and humidity.

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Section: Npf At High Elevationmentioning

confidence: 99%

New Particle Formation in the Atmosphere: From Molecular Clusters to Global Climate

et al. 2019

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“…Atmospheric particles influence the earth's energy balance by directly interacting with the solar radiation and indirectly being activated as cloud condensation nucleation (CCN) (Ghan and Schwartz, 2007). New particle formation (NPF) in the atmosphere and the coagulation herein may enable particles to grow larger than 60 nm, at which point aerosols can exert radiative effects on the solar radiation and act as CCN (Williamson et al, 2019;Shang et al, 2021). Some researchers find that the NPF is responsible for around half of the global CCN (Merikanto et al, 2009;Du et al, 2017;Kulmala et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…G. Zhao et al: Impact of aerosol-radiation interaction on new particle formation (CS) (Kulmala et al, 2001;Shang et al, 2021). The [OH] is related to solar ultraviolet radiation (Rohrer and Berresheim, 2006).…”

Section: Introductionmentioning

confidence: 99%

Impact of aerosol–radiation interaction on new particle formation

Zhao

Zhu

et al. 2021

Atmos. Chem. Phys.

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Abstract. New particle formation (NPF) is thought to contribute half of the global cloud condensation nuclei. A better understanding of the NPF at different altitudes can help assess the impact of NPF on cloud formation and corresponding physical properties. However, NPF is not sufficiently understood in the upper mixing layer because previous studies mainly focused on ground-level measurements. In this study, the developments of aerosol size distribution at different altitudes are characterized based on the field measurement conducted in January 2019 in Beijing, China. We find that the partition of nucleation-mode particles in the upper mixing layer is larger than that at the ground, which implies that the nucleation processing is more likely to happen in the upper mixing layer than that at the ground. Results of the radiative transfer model show that the photolysis rates of the nitrogen dioxide and ozone increase with altitude within the mixing layer, which leads to a higher concentration of sulfuric acid in the upper mixing layer than that at the ground. Therefore, the nucleation processing in the upper mixing layer should be stronger than that at the ground, which is consistent with our measurement results. Our study emphasizes the influence of aerosol–radiation interaction on the NPF. These results have the potential to improve our understanding of the source of cloud condensation nuclei on a global scale due to the impacts of aerosol–radiation interaction.

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“…It can be reflected by the high pollutant concentration during the daytime due to the strong convective mixing. In a previous publication based on the same measurement, Shang et al (2018) found an increasing trend of Aitken-mode particle number concentration during the daytime. By examining the available evidence, they believed that those Aitken-mode particles came 190 from the primary emissions under the mountain.…”

Section: Observational Evidence For the Transport Of Biomass Burning mentioning

confidence: 57%

Strong Light Absorption Induced by Aged Biomass Burning Black Carbon over the Southeastern Tibetan Plateau in Pre-monsoon Season

Tan

et al. 2020

Preprint

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Abstract. During the pre-monsoon season, biomass burning (BB) activities are intensive in southern Asia. Facilitated by westerly circulation, those BB plumes can be transported to the Tibetan Plateau (TP). Black carbon (BC), the main aerosol species in BB emissions, is an important climate warming agent, and its absorbing property strongly depends on its size distribution and mixing state. To elucidate the influence of those transported BB plumes on the TP, a field campaign was conducted on the southeast edge of the TP during the pre-monsoon season. It was found that the transported BB plumes substantially increased the number concentration of the atmospheric BC particles by 13 times, and greatly elevated the number fraction of thickly-coated BC from 52 % up to 91 %. Those transported BC particles had slightly larger core size and much thicker coatings than the background BC particles. However, the coating mass was not evenly distributed on BC particles with different sizes. The smaller BC cores were found to have larger shell/core ratios than the larger cores. Besides, the transported BB plumes strongly affected the vertical variation of the BC's abundance and mixing state, resulting in a higher concentration, larger number fraction and higher aging degree of BC particles in the upper atmosphere. Resulted from both increase of BC loading and aging degree, the transported BB plumes eventually enhanced the total light absorption by 15 times, in which 21 % was contributed by the BC aging and 79 % was contributed from the increase of BC mass. Particularly, the light absorption enhancement induced by the aging process during long-range transport has far exceeded the background aerosol light absorption, which implicates a significant influence of BC aging on climate warming over the TP region.

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Particle number size distribution and new particle formation under the influence of biomass burning at a high altitude background site at Mt. Yulong (3410 m), China

Cited by 30 publications

References 71 publications

New Particle Formation in the Atmosphere: From Molecular Clusters to Global Climate

New Particle Formation in the Atmosphere: From Molecular Clusters to Global Climate

Impact of aerosol–radiation interaction on new particle formation

Strong Light Absorption Induced by Aged Biomass Burning Black Carbon over the Southeastern Tibetan Plateau in Pre-monsoon Season

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