Skip to main content

Advertisement

Log in

Spatio-temporal trends and influencing factors of PM2.5 concentrations in urban agglomerations in China between 2000 and 2016

  • Research Article
  • Published:
Environmental Science and Pollution Research Aims and scope Submit manuscript

Abstract

An urban agglomeration (UA), similar to a megalopolis or a metropolitan area, is a region where cities and people are concentrated, and where air pollution has adversely impacted on sustainable and high quality development. Studies on the spatio-temporal trends and the factors which influence PM2.5 concentrations may be used as a reference to support air pollution control policy for major UAs throughout the world. Nineteen UAs in China covering the years 2000–2016 were chosen as the research object, the PM2.5 concentrations being used to reflect air pollution and being estimated from analysis of remote sensing images. The Exploratory Spatial Data Analysis method was used to study the spatio-temporal trends for PM2.5 concentrations, and the Geodetector method was used to examine the factors influencing the PM2.5 concentrations. The results revealed that (i) the temporal trend for the average values of the PM2.5 concentrations in the UAs followed an inverted U-shaped curve and the inflection points of the curve occurred in 2007. (ii) The PM2.5 concentrations in the UAs exhibited significant global spatial autocorrelation with the high–high type and the low–low type being the main categories. (iii) The rate of land urbanization and the structure of energy consumption were the main factors which influenced the PM2.5 concentrations in the UAs.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

Data availability

All data generated or analyzed during this study are included in this article.

References

Download references

Funding

This study was supported by National Natural Science Foundation of China (72004124) and the Key Projects of Social Science Planning in Shandong Province, China (20BJJJ06).

Author information

Authors and Affiliations

Authors

Contributions

Caihong Huang analyzed the influencing factors of PM2.5 concentrations. Kai Liu conceived and designed the research and was a major contributor in writing the manuscript. Liang Zhou analyzed and interpreted the data for PM2.5. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Kai Liu.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

Not applicable.

Consent to participate

Not applicable.

Consent to publish

Not applicable.

Clinical trial registration

Not applicable.

Additional information

Responsible Editor: Gerhard Lammel

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Highlights

• Spatio-temporal trends for PM2.5 concentrations were studied using the Exploratory Spatial Data Analysis method.

• Factors which influenced PM2.5 concentrations were examined using the Geodetector method.

• Temporal trends for the average PM2.5 concentrations followed an inverted U-shaped curve.

• PM2.5 concentrations exhibited significant global spatial autocorrelation, the main categories being the high–high and the low–low type categories.

• Main factors which influenced PM2.5 concentrations were the rate of land urbanization and the structure of energy consumption.

Supplementary Information

ESM 1

(DOCX 4963 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Huang, C., Liu, K. & Zhou, L. Spatio-temporal trends and influencing factors of PM2.5 concentrations in urban agglomerations in China between 2000 and 2016. Environ Sci Pollut Res 28, 10988–11000 (2021). https://doi.org/10.1007/s11356-020-11357-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11356-020-11357-z

Keywords

Navigation