Real-Time Detection of Urban Atmospheric Micro–Nanoplastics and Their Chemical Mixing State Using Bioaerosol Single-Particle Mass Spectrometry

作者：Chongchong Zhang, Yiming Qin, Lei Li, Eleonora Aruffo, Shaoyong Li, Xuan Li, Ning Zhang, Yun Wu, Haiwei Li, Y. Zhang, Yuan Dai, Ming Wang, Xinlei Ge, Ke Li, Wei Du, Chunlei Cheng, Mei Li, Mindong Chen, Junfeng Wang · 发表于：Environmental Science & Technology · 年份：2025 · DOI：10.1021/acs.est.5c06513 · 被引用次数：3 · 研究领域：Microplastics and Plastic Pollution、Air Quality and Health Impacts、Recycling and Waste Management Techniques

= 51 045 particles), predominantly within the 0.3-0.8 μm size range. Approximately 76.4% of PS MNPs exhibited co-detection of nitrate and sulfate signatures, and in particles with PS characteristics, the relative peak areas of nitrate and sulfate are 14.30 and 4.06%, respectively, demonstrating active atmospheric aging via secondary pollutant uptake. This work established a new methodology for real-time MNP tracking in atmospheric matrices, providing critical insights into their lifecycle and risks.