It has been shown that sunlit snow and ice plays an important role in processing
atmospheric species. Photochemical production of a variety of chemicals has recently been …

Nitrous acid (HONO) plays a key role in tropospheric photochemistry, primarily due to its role
as a source of hydroxyl (OH) radicals via its rapid photolysis. OH radicals are involved in …

Under the 1997 Kyoto Protocol, no control of black carbon (BC) was considered. Here, it is
found, through simulations in which 12 identifiable effects of aerosol particles on climate are …

Nitrous acid (HONO) is an important precursor of the hydroxyl radical (OH), the self‐cleaning
agent of the atmosphere and a key species in the formation of harmful photooxidants during …

In several recent field campaigns the existence of a strong daytime source of nitrous acid
was demonstrated. The mechanism of this source remains unclear. Accordingly, in the …

The atmospheric concentrations of gaseous HNO 3, HCl and NH 3 and their relative salts
have been measured during two field campaigns in the winter and in the summer of 2007 at …

HONO formation has been proposed as an important OH radical source in simulation
chambers for more than two decades. Besides the heterogeneous HONO formation by the …

The atmospheric concentrations of gaseous ammonia have been measured during two field
campaigns in the winter and in the summer of 2007 at Beijing (China). These measurements …

Characterization of daytime sources of nitrous acid (HONO) is crucial to understand
atmospheric oxidation and radical cycling in the planetary boundary layer. HONO and …

The atmospheric concentrations of nitrous acid (HONO) have been measured during two
field campaigns in the winter and summer of 2007 at Beijing (China). The results were …