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Ammonium Chloride Associated Aerosol Liquid Water Enhances Haze in Delhi, India

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Ammonium Chloride Associated Aerosol Liquid Water Enhances Haze in Delhi, India. / Chen, Ying; Wang, Yu; Nenes, Athanasios et al.
In: Environmental Science and Technology, Vol. 56, No. 11, 07.06.2022, p. 7163-7173.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Chen, Y, Wang, Y, Nenes, A, Wild, O, Song, S, Hu, D, Liu, D, He, J, Hildebrandt Ruiz, L, Apte, JS, Gunthe, SS & Liu, P 2022, 'Ammonium Chloride Associated Aerosol Liquid Water Enhances Haze in Delhi, India', Environmental Science and Technology, vol. 56, no. 11, pp. 7163-7173. https://doi.org/10.1021/acs.est.2c00650

APA

Chen, Y., Wang, Y., Nenes, A., Wild, O., Song, S., Hu, D., Liu, D., He, J., Hildebrandt Ruiz, L., Apte, J. S., Gunthe, S. S., & Liu, P. (2022). Ammonium Chloride Associated Aerosol Liquid Water Enhances Haze in Delhi, India. Environmental Science and Technology, 56(11), 7163-7173. https://doi.org/10.1021/acs.est.2c00650

Vancouver

Chen Y, Wang Y, Nenes A, Wild O, Song S, Hu D et al. Ammonium Chloride Associated Aerosol Liquid Water Enhances Haze in Delhi, India. Environmental Science and Technology. 2022 Jun 7;56(11):7163-7173. Epub 2022 Apr 28. doi: 10.1021/acs.est.2c00650

Author

Chen, Ying ; Wang, Yu ; Nenes, Athanasios et al. / Ammonium Chloride Associated Aerosol Liquid Water Enhances Haze in Delhi, India. In: Environmental Science and Technology. 2022 ; Vol. 56, No. 11. pp. 7163-7173.

Bibtex

@article{db9178fa5e2641c190c5511f24780187,
title = "Ammonium Chloride Associated Aerosol Liquid Water Enhances Haze in Delhi, India",
abstract = "The interaction between water vapor and atmospheric aerosol leads to enhancement in aerosol water content, which facilitates haze development, but its concentrations, sources, and impacts remain largely unknown in polluted urban environments. Here, we show that the Indian capital, Delhi, which tops the list of polluted capital cities, also experiences the highest aerosol water yet reported worldwide. This high aerosol water promotes secondary formation of aerosols and worsens air pollution. We report that severe pollution events are commonly associated with high aerosol water which enhances light scattering and reduces visibility by 70%. Strong light scattering also suppresses the boundary layer height on winter mornings in Delhi, inhibiting dispersal of pollutants and further exacerbating morning pollution peaks. We provide evidence that ammonium chloride is the largest contributor to aerosol water in Delhi, making up 40% on average, and we highlight that regulation of chlorine-containing precursors should be considered in mitigation strategies.",
keywords = "Hygroscopicity, Secondary inorganic aerosol, Particulate matter, Heterogeneous formation, Air pollution",
author = "Ying Chen and Yu Wang and Athanasios Nenes and Oliver Wild and Shaojie Song and Dawei Hu and Dantong Liu and Jianjun He and {Hildebrandt Ruiz}, Lea and Apte, {Joshua S} and Gunthe, {Sachin S} and Pengfei Liu",
year = "2022",
month = jun,
day = "7",
doi = "10.1021/acs.est.2c00650",
language = "English",
volume = "56",
pages = "7163--7173",
journal = "Environmental Science and Technology",
issn = "0013-936X",
publisher = "American Chemical Society",
number = "11",

}

RIS

TY - JOUR

T1 - Ammonium Chloride Associated Aerosol Liquid Water Enhances Haze in Delhi, India

AU - Chen, Ying

AU - Wang, Yu

AU - Nenes, Athanasios

AU - Wild, Oliver

AU - Song, Shaojie

AU - Hu, Dawei

AU - Liu, Dantong

AU - He, Jianjun

AU - Hildebrandt Ruiz, Lea

AU - Apte, Joshua S

AU - Gunthe, Sachin S

AU - Liu, Pengfei

PY - 2022/6/7

Y1 - 2022/6/7

N2 - The interaction between water vapor and atmospheric aerosol leads to enhancement in aerosol water content, which facilitates haze development, but its concentrations, sources, and impacts remain largely unknown in polluted urban environments. Here, we show that the Indian capital, Delhi, which tops the list of polluted capital cities, also experiences the highest aerosol water yet reported worldwide. This high aerosol water promotes secondary formation of aerosols and worsens air pollution. We report that severe pollution events are commonly associated with high aerosol water which enhances light scattering and reduces visibility by 70%. Strong light scattering also suppresses the boundary layer height on winter mornings in Delhi, inhibiting dispersal of pollutants and further exacerbating morning pollution peaks. We provide evidence that ammonium chloride is the largest contributor to aerosol water in Delhi, making up 40% on average, and we highlight that regulation of chlorine-containing precursors should be considered in mitigation strategies.

AB - The interaction between water vapor and atmospheric aerosol leads to enhancement in aerosol water content, which facilitates haze development, but its concentrations, sources, and impacts remain largely unknown in polluted urban environments. Here, we show that the Indian capital, Delhi, which tops the list of polluted capital cities, also experiences the highest aerosol water yet reported worldwide. This high aerosol water promotes secondary formation of aerosols and worsens air pollution. We report that severe pollution events are commonly associated with high aerosol water which enhances light scattering and reduces visibility by 70%. Strong light scattering also suppresses the boundary layer height on winter mornings in Delhi, inhibiting dispersal of pollutants and further exacerbating morning pollution peaks. We provide evidence that ammonium chloride is the largest contributor to aerosol water in Delhi, making up 40% on average, and we highlight that regulation of chlorine-containing precursors should be considered in mitigation strategies.

KW - Hygroscopicity

KW - Secondary inorganic aerosol

KW - Particulate matter

KW - Heterogeneous formation

KW - Air pollution

U2 - 10.1021/acs.est.2c00650

DO - 10.1021/acs.est.2c00650

M3 - Journal article

C2 - 35483018

VL - 56

SP - 7163

EP - 7173

JO - Environmental Science and Technology

JF - Environmental Science and Technology

SN - 0013-936X

IS - 11

ER -