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eISSN: 2083-5906
ISSN: 1230-1485
ISSN: 1230-1485
ORIGINAL RESEARCH
Spatial and Temporal Characteristics of Ozone
Pollution and Sensitivity Analysis of Its Influencing
Factors in Hangzhou
1
Zhejiang Lin’an Atmospheric Background National Observation and Research Station, Zhejiang Institute
of Meteorological Sciences, Hangzhou 311300, China
2
Department of Environmental Engineering, China Jiliang University, Hangzhou 310018, China
3
College of Quality and Standardization, China Jiliang University, Hangzhou 310018, China
Submission date: 2025-07-03
Final revision date: 2025-09-08
Acceptance date: 2025-12-05
Online publication date: 2026-03-04
Corresponding author
Tao Ding
Department of Environmental Engineering, China Jiliang University, No. 258, Xueyuan Street, 310018, Hangzhou, China
Department of Environmental Engineering, China Jiliang University, No. 258, Xueyuan Street, 310018, Hangzhou, China
KEYWORDS
TOPICS
ABSTRACT
In recent years, ozone (O3) pollution in Hangzhou has become increasingly prevalent, posing
a significant threat to public health and the ecological environment. This study investigated
the spatiotemporal characteristics and sensitivity of ozone pollution in Hangzhou by analyzing
monitoring data collected from 2018 to 2022 at 12 monitoring stations. The dataset included ozone
concentrations, meteorological parameters, and pollutant information. The results show that:
(1) The spatiotemporal distribution of ozone concentrations is characterized by a spatial pattern where
concentrations are lower in the west and higher in the east. The monthly variation displays a bimodal
pattern with peaks occurring in late spring and summer, while the diurnal variation demonstrates
a unimodal pattern peaking in the afternoon. Higher ozone concentrations were consistently recorded
during weekends in contrast to weekdays. (2) Sensitivity analysis demonstrated that higher temperatures
and reduced NO2 concentrations significantly facilitated ozone formation, whereas high relative humidity
(>55%) suppressed this process; PM2.5 concentrations demonstrated ozone-promoting effects within the
range of 11-40 μg/m3, while its impact plateaued when concentrations exceeded 77 μg/m3. This study
provides scientific evidence to support precise prevention and control strategies for ozone pollution
in Hangzhou, Zhejiang Province.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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| eISSN: | 2083-5906 |
| ISSN: | 1230-1485 |
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