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Exploring the Dynamic Spatio-Temporal Correlations between PM(2.5) Emissions from Different Sources and Urban Expansion in Beijing-Tianjin-Hebei Region
Due to rapid urbanization globally more people live in urban areas and, simultaneously, more people are exposed to the threat of environmental pollution. Taking PM(2.5) emission data as the intermediate link to explore the correlation between corresponding sectors behind various PM(2.5) emission sou...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7828208/ https://www.ncbi.nlm.nih.gov/pubmed/33445733 http://dx.doi.org/10.3390/ijerph18020608 |
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author | Zhao, Shen Xu, Yong |
author_facet | Zhao, Shen Xu, Yong |
author_sort | Zhao, Shen |
collection | PubMed |
description | Due to rapid urbanization globally more people live in urban areas and, simultaneously, more people are exposed to the threat of environmental pollution. Taking PM(2.5) emission data as the intermediate link to explore the correlation between corresponding sectors behind various PM(2.5) emission sources and urban expansion in the process of urbanization, and formulating effective policies, have become major issues. In this paper, based on long temporal coverage and high-quality nighttime light data seen from the top of the atmosphere and recently compiled PM(2.5) emissions data from different sources (transportation, residential and commercial, industry, energy production, deforestation and wildfire, and agriculture), we built an advanced Bayesian spatio-temporal autoregressive model and a local regression model to quantitatively analyze the correlation between PM(2.5) emissions from different sources and urban expansion in the Beijing-Tianjin-Hebei region. Our results suggest that the overall urban expansion in the study area maintained gradual growth from 1995 to 2014, with the fastest growth rate during 2005 to 2010; the urban expansion maintained a significant positive correlation with PM(2.5) emissions from transportation, energy production, and industry; different anti-haze policies should be designated according to respective local conditions in Beijing, Tianjin, and Hebei provinces; and during the period of rapid urban expansion (2005–2010), the spatial correlations between PM(2.5) emissions from different sources and urban expansion also changed, with the biggest change coming from the PM(2.5) emissions from the transport sector. |
format | Online Article Text |
id | pubmed-7828208 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-78282082021-01-25 Exploring the Dynamic Spatio-Temporal Correlations between PM(2.5) Emissions from Different Sources and Urban Expansion in Beijing-Tianjin-Hebei Region Zhao, Shen Xu, Yong Int J Environ Res Public Health Article Due to rapid urbanization globally more people live in urban areas and, simultaneously, more people are exposed to the threat of environmental pollution. Taking PM(2.5) emission data as the intermediate link to explore the correlation between corresponding sectors behind various PM(2.5) emission sources and urban expansion in the process of urbanization, and formulating effective policies, have become major issues. In this paper, based on long temporal coverage and high-quality nighttime light data seen from the top of the atmosphere and recently compiled PM(2.5) emissions data from different sources (transportation, residential and commercial, industry, energy production, deforestation and wildfire, and agriculture), we built an advanced Bayesian spatio-temporal autoregressive model and a local regression model to quantitatively analyze the correlation between PM(2.5) emissions from different sources and urban expansion in the Beijing-Tianjin-Hebei region. Our results suggest that the overall urban expansion in the study area maintained gradual growth from 1995 to 2014, with the fastest growth rate during 2005 to 2010; the urban expansion maintained a significant positive correlation with PM(2.5) emissions from transportation, energy production, and industry; different anti-haze policies should be designated according to respective local conditions in Beijing, Tianjin, and Hebei provinces; and during the period of rapid urban expansion (2005–2010), the spatial correlations between PM(2.5) emissions from different sources and urban expansion also changed, with the biggest change coming from the PM(2.5) emissions from the transport sector. MDPI 2021-01-12 2021-01 /pmc/articles/PMC7828208/ /pubmed/33445733 http://dx.doi.org/10.3390/ijerph18020608 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhao, Shen Xu, Yong Exploring the Dynamic Spatio-Temporal Correlations between PM(2.5) Emissions from Different Sources and Urban Expansion in Beijing-Tianjin-Hebei Region |
title | Exploring the Dynamic Spatio-Temporal Correlations between PM(2.5) Emissions from Different Sources and Urban Expansion in Beijing-Tianjin-Hebei Region |
title_full | Exploring the Dynamic Spatio-Temporal Correlations between PM(2.5) Emissions from Different Sources and Urban Expansion in Beijing-Tianjin-Hebei Region |
title_fullStr | Exploring the Dynamic Spatio-Temporal Correlations between PM(2.5) Emissions from Different Sources and Urban Expansion in Beijing-Tianjin-Hebei Region |
title_full_unstemmed | Exploring the Dynamic Spatio-Temporal Correlations between PM(2.5) Emissions from Different Sources and Urban Expansion in Beijing-Tianjin-Hebei Region |
title_short | Exploring the Dynamic Spatio-Temporal Correlations between PM(2.5) Emissions from Different Sources and Urban Expansion in Beijing-Tianjin-Hebei Region |
title_sort | exploring the dynamic spatio-temporal correlations between pm(2.5) emissions from different sources and urban expansion in beijing-tianjin-hebei region |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7828208/ https://www.ncbi.nlm.nih.gov/pubmed/33445733 http://dx.doi.org/10.3390/ijerph18020608 |
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