Related Experiment Video
Updated: May 29, 2026
10:28
Investigating the Relationship between Sea Surface Chlorophyll and Major Features of the South China Sea with Satellite Information
Published on: June 13, 2020
How sea-land breezes affect ozone in coastal cities: spatial and temporal patterns.
Naixiu Sun1, Ya-Nan Wang1, Yu Fei1
1Tianjin Key Laboratory of Urban Transport Emission Research & State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China.
Environmental Monitoring and Assessment
|May 28, 2026
Summary
Sea-land breeze (SLB) circulation significantly impacts ozone (O3) pollution in coastal cities, with effects varying by season and location. Understanding these dynamics is key for targeted pollution control strategies.
Area of Science:
- Atmospheric Chemistry
- Environmental Science
- Meteorology
Background:
- Sea-land breeze (SLB) circulation is a known factor influencing ozone (O3) pollution in coastal areas.
- However, its urban-scale variability and seasonal mechanisms require further investigation.
Purpose of the Study:
- To systematically investigate the characteristics and mechanisms of SLB-induced O3 pollution in Tianjin.
- To analyze the seasonal and spatial variabilities of SLB's influence on O3.
Main Methods:
- Utilized 2 years of multi-source observational data.
- Employed multiple statistical methods for analysis.
Main Results:
- SLB's O3 impact shows strong seasonal dependence: most pronounced in autumn, followed by summer, negligible in spring/winter.
- O3 pollution exacerbated in urban areas and increased in coastal/suburban zones under SLB.
- Summer O3 enhancement due to intensified photochemistry and pollutant transport; autumn O3 driven by temperature and transitional precursor sensitivity.
Conclusions:
- SLB-O3 relationship is season-dependent and spatially heterogeneous.
- Effective coastal O3 mitigation requires season-specific and region-specific control strategies.
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