India is the third-largest emitter of CO2 worldwide, primarily due to rapid urbanization and industrialization. This has resulted in poor air quality, causing over a million premature deaths annually, especially due to particulate pollution, or aerosols. At the same time, aerosol-cloud interactions may have masked some of the greenhouse gas-induced climate warming. The aim of this study is to comprehend the interaction and feedbacks between new particle formation, air quality, and climate in India. This will be achieved through comprehensive long-term observations and modeling of atmospheric composition and air quality. Measurements are conducted at two sites, Sonipat in North India and Chennai in South Peninsular India, allowing us to explore the atmospheric pollution issue under different emission sources and meteorological conditions. The project shows ways to address air pollution challenges in India, while enhancing our understanding of the associated climate effects.

2024

2028