We are an atmospheric chemistry research group in the Department of Environmental Sciences at the University of Virginia with broad interests in air quality, chemistry-climate feedbacks, atmosphere-biosphere interactions, and environmental justice. We collect measurements at the Earth’s surface and from onboard aircraft in polluted cities, agricultural areas, and within forest canopies. We also conduct studies in laboratory on plant-atmosphere exchange and interpret the wealth of existing long-term monitoring observations. We work to find solutions to atmospheric problems that adversely affect human health and ecosystems.