Data for: Chemical composition and hygroscopic properties of atmospheric fine particles in the tropical forest region of southwest China

This dataset contains the chemical composition and hygroscopic properties of atmospheric fine particles measured in the tropical forest region of southwest China. This data supports the findings of the manuscript "Chemical composition and hygroscopic properties of atmospheric fine particles in the tropical forest region of southwest China" (Manuscript #2025JD045358) submitted to JGR-Atmospheres. For detailed methodology, please refer to the main text of the article.