Hydrocarbon reactivity and eye irritation

Effect of Hydrocarbon and NOxon Photochemical Smog Formation under Simulated Transport Conditions

“…The average percent conversions, corrected for dilution, of each of the individual components of the hydrocarbon mixture from the data used for Table I are as follows: ethane-6, ethylene-43, propane-16, propylene-100, n-butane-30, isopentane-43, benzene-16, toluene-70, and meta-xylene-100. These 24-hr irradiation results agree reasonably with the 6-hr irradiation data of Heuss and Glasson 4 (correlation coefficient = 0.92) and are remarkably consistent with the corresponding rate constants 5 for the reaction of hydroxyl radicals with these hydrocarbons (correlation coefficient = 0.98). The high correlation was obtained with the rate constant data, excluding the data for propylene and meta-xylene because they had completely reacted well before the 24-hr irradiation period was terminated.…”

Eye irritation and environmental factors in the office environment-hypotheses, causes and a physiological model

“…Outdoor air pollution, in particular reactive compounds like peroxy acetyl nitrates found in smog (123), has also been associated with eye complaints (170,177) or defects of the tear film (58).…”

Effects of Toluene Content in Fuel on Aromatic Emissions in the Exhaust

“…Therefore, it is reasonable to assume that increasing the aromatic hydrocarbon content of a fuel also increases the aromatic species in the exhaust. This conclusion is evidenced in an earlier report 4 in which the benzo(a)-pyrene emission was found to increase by 2.7 times when gasoline was substituted by a fuel containing 50% o-xylene and 50% benzene. Thebenzo(a)-pyrene emission was 100 times greater with this synthetic fuel than with the isooctane fuel.…”