Field observations reveal biomass burning and cooking as the significant sources of PM2.5-bound organic acids in Central China

Key Points

• Biomass burning and cooking contribute significantly to PM2.5-bound organic acids in Central China, affecting air quality.
• Quantitative analysis indicated that biomass burning accounted for 60% of PM2.5-bound organic acids.
• Field observations conducted in various locations across Central China revealed diverse sources of air pollution.
• The findings highlight the need for effective air quality management strategies to address biomass-related emissions.