Title of article :
Contribution of HONO sources to the NOx/HOx/O3 chemistry in the polluted boundary layer
Author/Authors :
Bernard Aumont، نويسنده , , Frederic Chervier، نويسنده , , Sophie Laval، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
12
From page :
487
To page :
498
Abstract :
The contribution of HONO photolysis to the primary production of OH radicals and the impact of HONO sources to the O3 and NOx budgets has been investigated using a two-layer box model. Three sources of HONO were considered: direct emissions, heterogeneous production on the ground surface and heterogeneous production on the aerosol surface. We considered two scenarios representing typical urban and polluted rural area and simulations were conducted for both summer and winter conditions. For summertime conditions, HONO sources were found to have a slight impact on the NOx/HOx/O3 concentration profiles, except for conditions favoring the formation of photochemical pollution episodes where it becomes significant. For wintertime conditions, HONO sources were found to be major contributors to the primary OH production, leading to major changes in the HOx and NOx budget all day long.
Keywords :
nitrous acid , Pollution model , Photochemical pollution
Journal title :
Atmospheric Environment
Serial Year :
2003
Journal title :
Atmospheric Environment
Record number :
757455
Link To Document :
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