Foreseeable Co-occurring O₃ and PM_2.5 Pollution in Eastern China Driven by Climate Teleconnections.

ABSTRACT: The co-occurrence of surface ozone (O₃) and particulate matter (PM_2.5) pollution (COP) has been frequently observed in China, particularly in the North China Plain (NCP) during warmer months, posing significant threats to human health and ecosystems. However, the impact of climate factors on COP remains inadequately understood. This study identifies three major modes of interannual variability in the COP frequency in Eastern China, revealing a consistent spatial pattern, a North-south dipole, and heightened sensitivity in coastal regions. These modes are linked to preseasonal cooling sea surface temperatures (SSTs) in the Western Pacific Ocean, Arctic sea ice (SI) loss near the Barents Sea, and North Atlantic tripole SST anomalies associated with the North Atlantic Os

SUBMITTER: Zhang X 

PROVIDER: S-EPMC12635941 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature