Does anyone know how to find the actual ozone readings in Beijing?

Strange question, I know. But with the Olympics starting next month, I'm curious to compare the ozone levels in that city to ozone in U.S. cities.

For instance, the maximum eight-hour ozone average for Arvin yesterday was 90 parts ber billion. How does that stack up against Beijing's numbers?

The Chinese are planning to ban driving for half the city's 3.3 million cars, according to the Associated Press. The city's Olympic committee expects air pollution to drop 63%. OK, 63% of what?

I've asked a few people in air quality circles and researched briefly, but I haven't had much luck yet. I will continue looking. The readings are probably in a very convenient place that I am just missing.

If you have suggestions, let me know.