Peroxyacetyl nitrate (PAN) in relation to ozone and some meteorological parameters at Delft in the Netherlands

Computer modeling studies of the impact of vehicle exhaust emission controls on photochemical air pollution formation in the United Kingdom

“…The model value is slightly below the lower limit of the observations in rural areas. The calculated ozone/PAN ratio of 53 is in excellent agreement with the 50:1 ratio observed in Oxfordshire, UK (25), and with the ratio of 59 measured at Delft, Netherlands (5).…”

Peroxyacetyl nitrate (PAN) in the urban atmosphere

“…Photochemical oxidants such as ozone and peroxyacetyl nitrate (PAN; CH 3-C(O)OONO 2 ) have drawn a considerable amount of attention as the major components of photochemical smog event (Brice et al, 1984;Tsalkani et al, 1991;Jacobi et al, 2000;Liu et al, 2010). Atmospheric PAN has been considered as an incisive indicator of photochemical smog on the local scale relative to ozone due to the weaker association with the natural sources (Nieboer and Van Ham, 1976;Rappengluck et al, 2003). In addition, PAN can be transported over a long range in the free troposphere due to its stability (under low temperature conditions) with extended atmospheric lifetime.…”

Properties of Fluorocarbonyl Peroxynitrate

“…In the presence of NO 2 , peroxynitrates are formed. Peroxyacetyl nitrate, CH 3 C(O)OONO 2 (PAN), first identified by Stephens, has been identified as one of the main constituents of photochemical smog at many places in the world. , Since this discovery, the kinetics, spectroscopic properties, and tropospheric chemistry of organic peroxy radicals and their temporary reservoirs, RO 2 NO 2 , have been investigated in detail. , …”