Environment Research Institute;
Shandong University;
Qingdao 266237;
China;
Department of Civil and Environmental Engineering;
The Hong Kong Polytechnic University;
Hong Kong 999077;
China;
Division of Environment and Sustainability;
The Hong Kong University of Science and Technology;
Hong Kong 999077;
China;
Research Center for Eco-Environmental Sciences;
Chinese Academy of Sciences;
Beijing 100085;
China;
Univ Lyon;
UniversitéClaude Bernard Lyon 1;
Centre National de la Recherche Scientifique(CNRS);
Institut de Recherches sur la Catalyse et l’Environnement de Lyon(IRCELYON);
Villeurbanne F-69626;
France;
NO2 uptake; HONO source; Heterogeneous uptake coefficient; Urban grime;