Join Date: Jul 2000
Bikes: 1959 Capo; 1980 Peugeot PKN-10; 1981 Bianchi; 1988 Schwinn KOM-10;
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Originally posted by Kevin S
Thanks LBM. Didn't realize I was looking at 8 hr. averages. The explains why it peaked soo late in the day.
Ozone peaks late in the day because it is generated by sunlight reacting with hydrocarbon and oxides of nitrogen emissions, and because of downwind transport. In the Los Angeles area, for example, high ozone and nitrogen dioxide peaks hit the [inland] San Gabriel Valley area very late in the afternoon. Much of this ozone results from solar cooking of emissions near the coast.
"Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1981 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069