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Environmental Chemistry Environmental Chemistry Society
Environmental problems - Chemical approaches

Dedication to Roy Harrison

This collection brings together a series of papers dedicated to Prof. Roy Harrison.

Guest Editors
Manuel Dallosto (Institut de Ciencies del Mar, CSIC, Spain)
Zongbo Shi (University of Birmingham, UK)
David Beddows (University of Birmingham, UK)

Last Updated: 18 Sep 2024

EN24030Diversity of ammonia sources in Tianjin: nitrogen isotope analyses and simulations of aerosol ammonium

Libin Wu 0009-0006-3898-1192, Yiwen Zhang, Yunting Xiao, Jialei Zhu, Zongbo Shi 0000-0002-7157-543X, Yuantao Wang, Hong Xu, Wei Hu, Junjun Deng, Miao Tang and Pingqing Fu

A photograph of Jingang Bridge with the Tianjin Eye behind, shrouded in air pollution.

Environmental context. Atmospheric particulate NH4+, primarily produced from the reaction of NH3 and acids, is an important component of PM2.5. In this study, nitrogen stable isotope analyses and an atmospheric chemistry model were used to estimate the contribution of major NH3 sources to particulate NH4+ in Tianjin, a megacity in North China Plain (NCP). Our research has implications for investigations of NH3 emission sources and relevant pollution control in Tianjin and NCP. Photograph by Libin Wu.

This article belongs to the collection Dedication to Roy Harrison.