Prospects for ozone pollution control in China: An epidemiological perspective

Area of Science:

• Environmental Science
• Public Health
• Epidemiology

Background:

• Surface ozone pollution is a widespread environmental and public health issue in China.
• Current ozone mitigation policies often overlook crucial epidemiological research and evidence.
• There is a significant gap in communication between scientific researchers and government policymakers.

Purpose of the Study:

• To review China's current ozone mitigation policies and National Ambient Air Quality Standard (NAAQS) from an epidemiological viewpoint.
• To propose evidence-based recommendations for improving ozone control strategies and policies.
• To highlight the need for better integration of epidemiological findings into pollution control measures.

Main Methods:

• Review of nationwide ozone control measures, including integrated ozone and particulate matter control, precursor management, seasonal strategies, and regional cooperation.
• Analysis of environmental and epidemiological evidence related to ozone exposure and health effects.
• Discussion of relevant ozone metrics and NAAQS criteria values.

Main Results:

• The disease burden from ozone exposure in China may be underestimated.
• Epidemiological research on the health impacts of combined ozone and particulate matter control is insufficient.
• Atmospheric volatile organic compounds (VOCs) pose significant health risks, necessitating urgent control policies.
• Winter ozone pollution and regional cooperation benefits require greater attention.

Conclusions:

• Existing ozone metrics in the NAAQS may not be biologically relevant; revision is supported by epidemiological data.
• Enhanced epidemiological research and policy integration are crucial for effective ozone mitigation in China.
• Implementing stricter controls on atmospheric volatile organic compounds (VOCs) is urgently needed to protect public health.