Summary
In August 2022, a record-breaking compound drought-heatwave (CDHW) event coincided with severe ozone pollution in central eastern China (CEC), causing severe threats to human health. Using observations and model simulations, we demonstrate that increases in natural sources of air pollutants, including a 74.7% increase in soil reactive oxidized nitrogen (N<sub>r</sub>) and a 27.8% increase in biogenic volatile organic compounds (VOCs), enhanced daily maximum 8 h average (MDA8) ozone levels by 4.4 ppb (7.8%) over the CEC region, which dominated ozone exacerbation during the regional CDHW days. Under China's carbon neutrality policy with natural sources fixed at 2022 levels, stringent anthropogenic emission controls could lower the total CDHW-induced ozone enhancements. However, the impacts o
Dig deeper with Pulse AI.
Pulse AI has read the whole catalogue. Ask about this record, its theme, or how the findings apply to UK farming and policy — every answer cites the underlying studies.