The preferred values of the absorption cross-section for the range 185 nm to 220 nm are those of

M.P. Turberg, D.M. Giolando, C. Tilt, T. Soper, S. Mason, M. Davies, P. Klingensmith, and G.A. Takacs, "Atmospheric chemistry of alkyl nitrates," J. Photochem. Photobiol. A. Chem. 51, 281-292 (1990); DOI: 10.1016/1010-6030(90)87063-H.

Over the range 220 nm to 305 nm averages are taken of the results of

J.M. Roberts and R.W. Fajer, "UV absorption cross sections of organic nitrates of potential atmospheric importance and estimation of atmospheric lifetimes," Environ. Sci. Technol. 23, 945-951 (1989); DOI: 10.1021/es00066a003,

M.P. Turberg, D.M. Giolando, C. Tilt, T. Soper, S. Mason, M. Davies, P. Klingensmith, and G.A. Takacs, "Atmospheric chemistry of alkyl nitrates," J. Photochem. Photobiol. A. Chem. 51, 281-292 (1990); DOI: /10.1016/1010-6030(90)87063-H,

K.C. Clemitshaw, J. Williams, O.V. Rattigan, D.E. Shallcross, K.S. Law, and R.A. Cox, "Gas-phase ultraviolet absorption cross-sections and atmospheric lifetimes of several C₂-C₅ alkyl nitrates," J. Photochem. Photobiol. A: Chem. 102, 117-126 (1996); DOI: 10.1016/S1010-6030(96)04458-9, and

R.K. Talukdar, J.B. Burkholder, M. Hunter, M.K. Gilles, J.M. Roberts, and A.R. Ravishankara, "Atmospheric fate of several alkyl nitrates. Part 2. UV absorption cross-sections and photodissociation quantum yields," J. Chem. Soc. Faraday Trans. 93, 2797-2805 (1997); DOI: 10.1039/A701781B,

where their studies overlap,

and over the range 310 nm to 360 nm the preferred values are based on the results of Roberts and Fajer (1989), Clemitshaw et al. (1996), and Talukdar et al. (1997)

Temperature coefficients B for the parameterization

ln σ(T) = ln σ(298 K) + B × (T - 298) at T = 233-360 K are those of Talukdar et al. (1997):

--------------------
λ   10³ B
(nm) (K^-1)
--------------------
240  2.8
245  2.7
250  2.5
255  2.5
260  2.6
265  2.8
270  3.1
275  3.3
280  3.6
285  4.0
290  4.4
295  4.8
300  5.4
305  6.1
310  6.9
315  8.1
320  9.4
325 11.1
330 11.9
335 14.0
340 13.9