Jennifer G. Murphy

TL;DR: In this paper, the measurement of ambient concentrations of atmospheric ammonia gas (NH3), based on eight different measurement methods were compared above an intensively managed agricultural field in late summer 2008 in Southern Scotland, where the field was fertilised with urea midway through the experiment, leading to an increase in the average concentration from 10 to 100 ppbv.

TL;DR: In this article, day-of-week patterns in human activities can be used to examine the ways in which differences in primary emissions result in changes in the rates of photochemical reactions, and the production of secondary pollutants.

TL;DR: The results suggest that isoprene emission from the central African rainforest is much lower than estimated by the state-of-the-science MEGAN inventory.

TL;DR: Stay-at-home policies invoked in response to COVID-19 have led to well-publicized drops in some air pollutants, but the extent to which such reductions translate to improved air quality is dictated by not only emissions and meteorology, but also chemical transformations in the atmosphere.

TL;DR: In this article, a negative-ion proton transfer chemical ionization mass spectrometer was deployed on a mobile tower-mounted platform during Nitrogen, Aerosol Composition, and Halogens on a Tall Tower (NACHTT) to measure nitrous acid (HONO) in the winter of 2011.