Spatiotemporal variation and source analysis of air pollutants in the Harbin-Changchun (HC) region of China during 2014–2020

Yulong Wang; Youwen Sun; Zhiqing Zhang; Yuan Cheng

doi:10.1016/j.ese.2021.100126

Spatiotemporal variation and source analysis of air pollutants in the Harbin-Changchun (HC) region of China during 2014–2020

Yulong Wang
, Youwen Sun^*
, Zhiqing Zhang
, Yuan Cheng^*

^*Corresponding author for this work

School of Environment, Harbin Institute of Technology
CAS - Anhui Institute of Optics and Fine Mechanics

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

13 Scopus citations

Abstract

This study analyzed the characteristics of air pollution and specific pollution periods within the Harbin-Changchun (HC) metropolitan area during 2014–2020. Regarding annual, seasonal, and monthly variations of the six pollutants, the change trend in 11 cities of HC showed strong consistency in spatial distribution. The western cities (Songyuan, Daqing, and Siping) were vulnerable to dust storms from Inner Mongolia. The concentrations of all air pollutants, except O₃-8h, showed downward fluctuation trends from 2014 to 2018 and remained stable from 2018 to 2020 in terms of annual variations. The inter-annual trend of significant reductions in SO₂ and SO₂/PM_2.5 during the heating period indicated that strict emission reduction measures posed by the government were highly successful. The ratio of PM_2.5/SO₂ was used to identify open biomass burning (OBB), which showed a double peak (October–November (Oct–Nov), March–April (Mar–Apr)). The burning prohibition shifted the OBB from Oct–Nov to Mar–Apr.

Original language	English
Article number	100126
Journal	Environmental Science and Ecotechnology
Volume	8
DOIs	https://doi.org/10.1016/j.ese.2021.100126
State	Published - Oct 2021
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 11 Sustainable Cities and Communities

Keywords

Air pollution
Harbin-changchun metropolitan area
Open biomass burning
Spatiotemporal variations

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10.1016/j.ese.2021.100126

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title = "Spatiotemporal variation and source analysis of air pollutants in the Harbin-Changchun (HC) region of China during 2014–2020",

abstract = "This study analyzed the characteristics of air pollution and specific pollution periods within the Harbin-Changchun (HC) metropolitan area during 2014–2020. Regarding annual, seasonal, and monthly variations of the six pollutants, the change trend in 11 cities of HC showed strong consistency in spatial distribution. The western cities (Songyuan, Daqing, and Siping) were vulnerable to dust storms from Inner Mongolia. The concentrations of all air pollutants, except O3-8h, showed downward fluctuation trends from 2014 to 2018 and remained stable from 2018 to 2020 in terms of annual variations. The inter-annual trend of significant reductions in SO2 and SO2/PM2.5 during the heating period indicated that strict emission reduction measures posed by the government were highly successful. The ratio of PM2.5/SO2 was used to identify open biomass burning (OBB), which showed a double peak (October–November (Oct–Nov), March–April (Mar–Apr)). The burning prohibition shifted the OBB from Oct–Nov to Mar–Apr.",

keywords = "Air pollution, Harbin-changchun metropolitan area, Open biomass burning, Spatiotemporal variations",

author = "Yulong Wang and Youwen Sun and Zhiqing Zhang and Yuan Cheng",

note = "Publisher Copyright: {\textcopyright} 2021 The Author(s)",

year = "2021",

month = oct,

doi = "10.1016/j.ese.2021.100126",

language = "英语",

volume = "8",

journal = "Environmental Science and Ecotechnology",

issn = "2666-4984",

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AU - Wang, Yulong

AU - Sun, Youwen

AU - Zhang, Zhiqing

AU - Cheng, Yuan

PY - 2021/10

Y1 - 2021/10

N2 - This study analyzed the characteristics of air pollution and specific pollution periods within the Harbin-Changchun (HC) metropolitan area during 2014–2020. Regarding annual, seasonal, and monthly variations of the six pollutants, the change trend in 11 cities of HC showed strong consistency in spatial distribution. The western cities (Songyuan, Daqing, and Siping) were vulnerable to dust storms from Inner Mongolia. The concentrations of all air pollutants, except O3-8h, showed downward fluctuation trends from 2014 to 2018 and remained stable from 2018 to 2020 in terms of annual variations. The inter-annual trend of significant reductions in SO2 and SO2/PM2.5 during the heating period indicated that strict emission reduction measures posed by the government were highly successful. The ratio of PM2.5/SO2 was used to identify open biomass burning (OBB), which showed a double peak (October–November (Oct–Nov), March–April (Mar–Apr)). The burning prohibition shifted the OBB from Oct–Nov to Mar–Apr.

AB - This study analyzed the characteristics of air pollution and specific pollution periods within the Harbin-Changchun (HC) metropolitan area during 2014–2020. Regarding annual, seasonal, and monthly variations of the six pollutants, the change trend in 11 cities of HC showed strong consistency in spatial distribution. The western cities (Songyuan, Daqing, and Siping) were vulnerable to dust storms from Inner Mongolia. The concentrations of all air pollutants, except O3-8h, showed downward fluctuation trends from 2014 to 2018 and remained stable from 2018 to 2020 in terms of annual variations. The inter-annual trend of significant reductions in SO2 and SO2/PM2.5 during the heating period indicated that strict emission reduction measures posed by the government were highly successful. The ratio of PM2.5/SO2 was used to identify open biomass burning (OBB), which showed a double peak (October–November (Oct–Nov), March–April (Mar–Apr)). The burning prohibition shifted the OBB from Oct–Nov to Mar–Apr.

KW - Air pollution

KW - Harbin-changchun metropolitan area

KW - Open biomass burning

KW - Spatiotemporal variations

UR - https://www.scopus.com/pages/publications/85121695279

U2 - 10.1016/j.ese.2021.100126

DO - 10.1016/j.ese.2021.100126

M3 - 文章

AN - SCOPUS:85121695279

SN - 2666-4984

VL - 8

JO - Environmental Science and Ecotechnology

JF - Environmental Science and Ecotechnology

M1 - 100126

ER -

Spatiotemporal variation and source analysis of air pollutants in the Harbin-Changchun (HC) region of China during 2014–2020

Abstract

UN SDGs

Keywords

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