Wintertime urban air pollution in many global megacities is characterised by episodic rapid increase in particulate matter concentrations associated with elevated relative humidity – so-called haze episodes, which have become characteristic of cities such as Beijing. Atmospheric chemistry within haze combines gas- and condensed-phase chemical processes, leading to the growth in secondary species such as sulphate aerosols. Here, we integrate observations of reactive gas phase species (HONO, OH, NOx) and time-resolved aerosol composition, to explore observational constraints on the mechanisms responsible for sulphate growth during the onset of haze events. We show that HONO abundance is dominated by established fast gas-phase photochemistry, ...
Current knowledge of daytime HONO sources remains incomplete. A large missing daytime HONO source ha...
Nitrous acid (HONO), as a primary precursor of OH radicals, has been considered one of the most impo...
A photo-fragmentation laser induced fluorescence instrument coupled to an aerosol flow-tube was vali...
Wintertime urban air pollution in many global megacities is characterised by episodic rapid increase...
Wintertime urban air pollution in many global megacities is characterised by episodic rapid increase...
Wintertime urban air pollution in many global megacities is characterised by episodic rapid increase...
Wintertime urban air pollution in many global megacities is characterised by episodic rapid increase...
Wintertime urban air pollution in many global megacities is characterised by episodic rapid increase...
Haze events in China megacities involve the rapid oxidation of SO_2 to sulfate aerosol. Given the we...
Haze events in China megacities involve the rapid oxidation of SO_2 to sulfate aerosol. Given the we...
Recently, realistic simulation of nitrous acid (HONO) based on the HONO/NOx ratio of 0.02 was found ...
Recently, realistic simulation of nitrous acid (HONO) based on the HONO / NOx ratio of 0.02 was foun...
Recently, realistic simulation of nitrous acid (HONO) based on the HONO / NOx ratio of 0.02 was foun...
We performed measurements of nitrous acid (HONO) during the PRIDE-PRD2006 campaign in the Pearl Rive...
Current knowledge of daytime HONO sources remains incomplete. A large missing daytime HONO source ha...
Current knowledge of daytime HONO sources remains incomplete. A large missing daytime HONO source ha...
Nitrous acid (HONO), as a primary precursor of OH radicals, has been considered one of the most impo...
A photo-fragmentation laser induced fluorescence instrument coupled to an aerosol flow-tube was vali...
Wintertime urban air pollution in many global megacities is characterised by episodic rapid increase...
Wintertime urban air pollution in many global megacities is characterised by episodic rapid increase...
Wintertime urban air pollution in many global megacities is characterised by episodic rapid increase...
Wintertime urban air pollution in many global megacities is characterised by episodic rapid increase...
Wintertime urban air pollution in many global megacities is characterised by episodic rapid increase...
Haze events in China megacities involve the rapid oxidation of SO_2 to sulfate aerosol. Given the we...
Haze events in China megacities involve the rapid oxidation of SO_2 to sulfate aerosol. Given the we...
Recently, realistic simulation of nitrous acid (HONO) based on the HONO/NOx ratio of 0.02 was found ...
Recently, realistic simulation of nitrous acid (HONO) based on the HONO / NOx ratio of 0.02 was foun...
Recently, realistic simulation of nitrous acid (HONO) based on the HONO / NOx ratio of 0.02 was foun...
We performed measurements of nitrous acid (HONO) during the PRIDE-PRD2006 campaign in the Pearl Rive...
Current knowledge of daytime HONO sources remains incomplete. A large missing daytime HONO source ha...
Current knowledge of daytime HONO sources remains incomplete. A large missing daytime HONO source ha...
Nitrous acid (HONO), as a primary precursor of OH radicals, has been considered one of the most impo...
A photo-fragmentation laser induced fluorescence instrument coupled to an aerosol flow-tube was vali...