Spatio-Temporal Characteristics of SO2 across Weifang from 2008 to 2020

China has achieved good results in SO2 pollution control, but SO2 pollution still exists in some areas. Analyzing the spatio-temporal distribution of SO2 is critical for regional SO2 pollution prevention and...

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Autores principales:	Lining Zhu, Yu Zhang, Zheng Wu, Chengcheng Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ground monitoring stations SO<sub>2</sub> concentration spatio-temporal evolution Weifang city Medicine R
Acceso en línea:	https://doaj.org/article/38d6081644b44241b2900e8e3f95b3e3
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spelling	oai:doaj.org-article:38d6081644b44241b2900e8e3f95b3e32021-11-25T17:51:59ZSpatio-Temporal Characteristics of SO<sub>2</sub> across Weifang from 2008 to 202010.3390/ijerph1822122061660-46011661-7827https://doaj.org/article/38d6081644b44241b2900e8e3f95b3e32021-11-01T00:00:00Zhttps://www.mdpi.com/1660-4601/18/22/12206https://doaj.org/toc/1661-7827https://doaj.org/toc/1660-4601China has achieved good results in SO<sub>2</sub> pollution control, but SO<sub>2</sub> pollution still exists in some areas. Analyzing the spatio-temporal distribution of SO<sub>2</sub> is critical for regional SO<sub>2</sub> pollution prevention and control. Compared with existing air pollution studies that paid more attention to PM<sub>2</sub>.<sub>5</sub>, NO<sub>2</sub> and O<sub>3</sub>, and focused on the macro scale, this study took the small-scale Weifang city as the research area, analyzed the temporal and spatial changes in SO<sub>2</sub>, discussed the migration trajectory of SO<sub>2</sub> pollution and explored the impact of wind on SO<sub>2</sub> pollution. The results show that the average annual concentration of SO<sub>2</sub> in Weifang has exhibited a downward trend in the past 13 years, showing the basic characteristics of “highest in winter, lowest in summer and slightly higher in spring and autumn”, “highest on Sunday, lowest on Thursday and gradually decreasing from Monday to Thursday” and “highest at 9 a.m., lowest at 4 p.m. and gradually increasing from midnight to 9 a.m.”. SO<sub>2</sub> concentration showed obvious spatial heterogeneity: higher in the north and lower in the south. In addition, Shouguang, Changyi and Gaomi were seriously polluted. The SO<sub>2</sub> pollution shifted from south to northeast. The clean wind direction (southeast wind and northeast wind) of Weifang city accounted for about 41%, and the pollution wind direction (northwest wind and west wind) accounted for about 7%. Drawing from the multi-scale analysis, vegetation, precipitation, temperature, transport situation and human activity were the most relevant factors. Limited to data collection, more quantitative research is needed to gain insight into the influence mechanism in the future.Lining ZhuYu ZhangZheng WuChengcheng ZhangMDPI AGarticleground monitoring stationsSO<sub>2</sub> concentrationspatio-temporal evolutionWeifang cityMedicineRENInternational Journal of Environmental Research and Public Health, Vol 18, Iss 12206, p 12206 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ground monitoring stations SO<sub>2</sub> concentration spatio-temporal evolution Weifang city Medicine R
spellingShingle	ground monitoring stations SO<sub>2</sub> concentration spatio-temporal evolution Weifang city Medicine R Lining Zhu Yu Zhang Zheng Wu Chengcheng Zhang Spatio-Temporal Characteristics of SO<sub>2</sub> across Weifang from 2008 to 2020
description	China has achieved good results in SO<sub>2</sub> pollution control, but SO<sub>2</sub> pollution still exists in some areas. Analyzing the spatio-temporal distribution of SO<sub>2</sub> is critical for regional SO<sub>2</sub> pollution prevention and control. Compared with existing air pollution studies that paid more attention to PM<sub>2</sub>.<sub>5</sub>, NO<sub>2</sub> and O<sub>3</sub>, and focused on the macro scale, this study took the small-scale Weifang city as the research area, analyzed the temporal and spatial changes in SO<sub>2</sub>, discussed the migration trajectory of SO<sub>2</sub> pollution and explored the impact of wind on SO<sub>2</sub> pollution. The results show that the average annual concentration of SO<sub>2</sub> in Weifang has exhibited a downward trend in the past 13 years, showing the basic characteristics of “highest in winter, lowest in summer and slightly higher in spring and autumn”, “highest on Sunday, lowest on Thursday and gradually decreasing from Monday to Thursday” and “highest at 9 a.m., lowest at 4 p.m. and gradually increasing from midnight to 9 a.m.”. SO<sub>2</sub> concentration showed obvious spatial heterogeneity: higher in the north and lower in the south. In addition, Shouguang, Changyi and Gaomi were seriously polluted. The SO<sub>2</sub> pollution shifted from south to northeast. The clean wind direction (southeast wind and northeast wind) of Weifang city accounted for about 41%, and the pollution wind direction (northwest wind and west wind) accounted for about 7%. Drawing from the multi-scale analysis, vegetation, precipitation, temperature, transport situation and human activity were the most relevant factors. Limited to data collection, more quantitative research is needed to gain insight into the influence mechanism in the future.
format	article
author	Lining Zhu Yu Zhang Zheng Wu Chengcheng Zhang
author_facet	Lining Zhu Yu Zhang Zheng Wu Chengcheng Zhang
author_sort	Lining Zhu
title	Spatio-Temporal Characteristics of SO<sub>2</sub> across Weifang from 2008 to 2020
title_short	Spatio-Temporal Characteristics of SO<sub>2</sub> across Weifang from 2008 to 2020
title_full	Spatio-Temporal Characteristics of SO<sub>2</sub> across Weifang from 2008 to 2020
title_fullStr	Spatio-Temporal Characteristics of SO<sub>2</sub> across Weifang from 2008 to 2020
title_full_unstemmed	Spatio-Temporal Characteristics of SO<sub>2</sub> across Weifang from 2008 to 2020
title_sort	spatio-temporal characteristics of so<sub>2</sub> across weifang from 2008 to 2020
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/38d6081644b44241b2900e8e3f95b3e3
work_keys_str_mv	AT liningzhu spatiotemporalcharacteristicsofsosub2subacrossweifangfrom2008to2020 AT yuzhang spatiotemporalcharacteristicsofsosub2subacrossweifangfrom2008to2020 AT zhengwu spatiotemporalcharacteristicsofsosub2subacrossweifangfrom2008to2020 AT chengchengzhang spatiotemporalcharacteristicsofsosub2subacrossweifangfrom2008to2020
_version_	1718411915015749632

Spatio-Temporal Characteristics of SO<sub>2</sub> across Weifang from 2008 to 2020

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