American Lung Associaton State of the Air: California (American Lung Association) Annual report that presents county-level air quality information for ozone and particle pollution using the most up-to-date data available for nationwide comparisons. Includes two measures of particle pollution--short-term exposure, which are occasional spikes in particle pollution from relatively infrequent events; and the year-round or chronic exposure from particles produced routinely in the environment. In addition, the report includes ozone data for each county that has an ozone monitor. For each county statistics are given for number of people sensitive to air pollution, e.g., children under 14, people with asthma or emphysema.