By the same authors

Role of Ammonia on the Feedback Between AWC and Inorganic Aerosol Formation During Heavy Pollution in the North China Plain

Research output: Contribution to journalArticle

Standard

Role of Ammonia on the Feedback Between AWC and Inorganic Aerosol Formation During Heavy Pollution in the North China Plain. / Ge, Baozhu; Xu, Xiaobin; Ma, Zhiqiang; Pan, Xiaole; Wang, Zhe; Lin, Weili; Ouyang, Bin; Xu, Danhui; Lee, James; Zheng, Mei; Ji, Dongsheng; Sun, Yele; Dong, Huabin; Squires, Freya Anne; Fu, Pingqing; Wang, Zifa.

In: Earth and Space Science, Vol. 6, No. 9, 09.2019, p. 1675-1693.

Research output: Contribution to journalArticle

Harvard

Ge, B, Xu, X, Ma, Z, Pan, X, Wang, Z, Lin, W, Ouyang, B, Xu, D, Lee, J, Zheng, M, Ji, D, Sun, Y, Dong, H, Squires, FA, Fu, P & Wang, Z 2019, 'Role of Ammonia on the Feedback Between AWC and Inorganic Aerosol Formation During Heavy Pollution in the North China Plain', Earth and Space Science, vol. 6, no. 9, pp. 1675-1693. https://doi.org/10.1029/2019EA000799

APA

Ge, B., Xu, X., Ma, Z., Pan, X., Wang, Z., Lin, W., ... Wang, Z. (2019). Role of Ammonia on the Feedback Between AWC and Inorganic Aerosol Formation During Heavy Pollution in the North China Plain. Earth and Space Science, 6(9), 1675-1693. https://doi.org/10.1029/2019EA000799

Vancouver

Ge B, Xu X, Ma Z, Pan X, Wang Z, Lin W et al. Role of Ammonia on the Feedback Between AWC and Inorganic Aerosol Formation During Heavy Pollution in the North China Plain. Earth and Space Science. 2019 Sep;6(9):1675-1693. https://doi.org/10.1029/2019EA000799

Author

Ge, Baozhu ; Xu, Xiaobin ; Ma, Zhiqiang ; Pan, Xiaole ; Wang, Zhe ; Lin, Weili ; Ouyang, Bin ; Xu, Danhui ; Lee, James ; Zheng, Mei ; Ji, Dongsheng ; Sun, Yele ; Dong, Huabin ; Squires, Freya Anne ; Fu, Pingqing ; Wang, Zifa. / Role of Ammonia on the Feedback Between AWC and Inorganic Aerosol Formation During Heavy Pollution in the North China Plain. In: Earth and Space Science. 2019 ; Vol. 6, No. 9. pp. 1675-1693.

Bibtex - Download

@article{aee19f7be6884075a5601f0703be86d8,
title = "Role of Ammonia on the Feedback Between AWC and Inorganic Aerosol Formation During Heavy Pollution in the North China Plain",
abstract = "Atmospheric NH3 plays a vital role not only in the environmental ecosystem but also in atmosphere chemistry. To further understand the effects of NH3 on the formation of haze pollution in Beijing, ambient NH3 and related species were measured and simulated at high resolutions during the wintertime Air Pollution and Human Health-Beijing (APHH-Beijing) campaign in 2016. We found that the total NHx (gaseous NH3+particle NH4 +) was mostly in excess of the SO4 2−-NO3 −-NH4 +-water equilibrium system during our campaign. This NHx excess made medium aerosol acidity, with the median pH value being 3.6 and 4.5 for polluted and nonpolluted conditions, respectively, and enhanced the formation of particle phase nitrate. Our analysis suggests that NH4NO3 is the most important factor driving the increasing of aerosol water content with NO3 − controlling the prior pollution stage and NH4 + the most polluted stage. Increased formation of NH4NO3 under excess NHx, especially during the nighttime, may trigger the decreasing of aerosol deliquescence relative humidity even down to less than 50{\%} and hence lead to hygroscopic growth even under RH conditions lower than 50{\%} and the wet aerosol particles become better medium for rapid heterogeneous reactions. A further increase of RH promotes the positive feedback “aerosol water content-heterogeneous reactions” and ultimately leads to the formation of severe haze. Modeling results by Nested Air Quality Prediction Monitor System (NAQPMS) show the control of 20{\%} NH3 emission may affect 5–11{\%} of particulate matter PM2.5 formation under current emissions conditions in the North China Plain.",
keywords = "aerosol water content, ammonia, APHH-Beijing, NCP, partition, PM",
author = "Baozhu Ge and Xiaobin Xu and Zhiqiang Ma and Xiaole Pan and Zhe Wang and Weili Lin and Bin Ouyang and Danhui Xu and James Lee and Mei Zheng and Dongsheng Ji and Yele Sun and Huabin Dong and Squires, {Freya Anne} and Pingqing Fu and Zifa Wang",
note = "{\circledC} 2019, The Author(s).",
year = "2019",
month = "9",
doi = "10.1029/2019EA000799",
language = "English",
volume = "6",
pages = "1675--1693",
journal = "Earth and Space Science",
issn = "2333-5084",
publisher = "Wiley",
number = "9",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Role of Ammonia on the Feedback Between AWC and Inorganic Aerosol Formation During Heavy Pollution in the North China Plain

AU - Ge, Baozhu

AU - Xu, Xiaobin

AU - Ma, Zhiqiang

AU - Pan, Xiaole

AU - Wang, Zhe

AU - Lin, Weili

AU - Ouyang, Bin

AU - Xu, Danhui

AU - Lee, James

AU - Zheng, Mei

AU - Ji, Dongsheng

AU - Sun, Yele

AU - Dong, Huabin

AU - Squires, Freya Anne

AU - Fu, Pingqing

AU - Wang, Zifa

N1 - © 2019, The Author(s).

PY - 2019/9

Y1 - 2019/9

N2 - Atmospheric NH3 plays a vital role not only in the environmental ecosystem but also in atmosphere chemistry. To further understand the effects of NH3 on the formation of haze pollution in Beijing, ambient NH3 and related species were measured and simulated at high resolutions during the wintertime Air Pollution and Human Health-Beijing (APHH-Beijing) campaign in 2016. We found that the total NHx (gaseous NH3+particle NH4 +) was mostly in excess of the SO4 2−-NO3 −-NH4 +-water equilibrium system during our campaign. This NHx excess made medium aerosol acidity, with the median pH value being 3.6 and 4.5 for polluted and nonpolluted conditions, respectively, and enhanced the formation of particle phase nitrate. Our analysis suggests that NH4NO3 is the most important factor driving the increasing of aerosol water content with NO3 − controlling the prior pollution stage and NH4 + the most polluted stage. Increased formation of NH4NO3 under excess NHx, especially during the nighttime, may trigger the decreasing of aerosol deliquescence relative humidity even down to less than 50% and hence lead to hygroscopic growth even under RH conditions lower than 50% and the wet aerosol particles become better medium for rapid heterogeneous reactions. A further increase of RH promotes the positive feedback “aerosol water content-heterogeneous reactions” and ultimately leads to the formation of severe haze. Modeling results by Nested Air Quality Prediction Monitor System (NAQPMS) show the control of 20% NH3 emission may affect 5–11% of particulate matter PM2.5 formation under current emissions conditions in the North China Plain.

AB - Atmospheric NH3 plays a vital role not only in the environmental ecosystem but also in atmosphere chemistry. To further understand the effects of NH3 on the formation of haze pollution in Beijing, ambient NH3 and related species were measured and simulated at high resolutions during the wintertime Air Pollution and Human Health-Beijing (APHH-Beijing) campaign in 2016. We found that the total NHx (gaseous NH3+particle NH4 +) was mostly in excess of the SO4 2−-NO3 −-NH4 +-water equilibrium system during our campaign. This NHx excess made medium aerosol acidity, with the median pH value being 3.6 and 4.5 for polluted and nonpolluted conditions, respectively, and enhanced the formation of particle phase nitrate. Our analysis suggests that NH4NO3 is the most important factor driving the increasing of aerosol water content with NO3 − controlling the prior pollution stage and NH4 + the most polluted stage. Increased formation of NH4NO3 under excess NHx, especially during the nighttime, may trigger the decreasing of aerosol deliquescence relative humidity even down to less than 50% and hence lead to hygroscopic growth even under RH conditions lower than 50% and the wet aerosol particles become better medium for rapid heterogeneous reactions. A further increase of RH promotes the positive feedback “aerosol water content-heterogeneous reactions” and ultimately leads to the formation of severe haze. Modeling results by Nested Air Quality Prediction Monitor System (NAQPMS) show the control of 20% NH3 emission may affect 5–11% of particulate matter PM2.5 formation under current emissions conditions in the North China Plain.

KW - aerosol water content

KW - ammonia

KW - APHH-Beijing

KW - NCP

KW - partition

KW - PM

UR - http://www.scopus.com/inward/record.url?scp=85073603213&partnerID=8YFLogxK

U2 - 10.1029/2019EA000799

DO - 10.1029/2019EA000799

M3 - Article

VL - 6

SP - 1675

EP - 1693

JO - Earth and Space Science

JF - Earth and Space Science

SN - 2333-5084

IS - 9

ER -