Ivonne Trebs

TL;DR: It is shown that soil nitrite can release HONO and explain the reported strength and diurnal variation of the missing source, and agricultural activities and land-use changes may strongly influence the oxidizing capacity of the atmosphere.

TL;DR: A review of the current state of knowledge on Amazonian aerosol particles specifically and tropical continental aerosol particle in general can be found in this article, where the authors provide a comprehensive account of what is known presently about Amazonians and conclude by formulating outlook and priorities for further research.

TL;DR: It is shown that ammonia-oxidizing bacteria can directly release HONO in quantities larger than expected from the acid-base and Henry’s law equilibria of the aqueous phase in soil, which constitutes an additional loss term for fixed nitrogen in soils and a source for reactive nitrogen in the atmosphere.

TL;DR: The Amazon Tall Tower Observatory (ATTO) as discussed by the authors is a tall tower observatory that provides a baseline record of present-day climatic, biogeochemical, and atmospheric conditions and that will be operated over coming decades to monitor change in the Amazon region.

TL;DR: In this article, the authors measured the mixing ratios of ammonia (NH3), nitric acid (HNO3), Nitrous Acid (HONO), HONO, hydrochloric acid, HCl, sulfur dioxide (SO2), ammonium (NH4+), nitrate (NO3-), nitrite (NO2-), chloride (Cl-Cl- and sulfate (SO42-), and their diel and seasonal variations at a pasture site in the Amazon Basin (Rondonia, Brazil).