Pollution Problems In The Valley: Fresno Zip Codes Among The Worst

The air in the Central Valley ranks poorly compared to other cities in California, according to an environmental report released this week.

Seven of the state's top 10 most polluted zip codes are located in the Central Valley, according to the environmental protection agency.

Southeast Fresno -- with its 93706 -- has the dirtiest air in all of California, the report concluded.

The study{} factored in pesticide use, traffic and the quality of the area's water in determining the rankings.

The American Lung Association also released it's annual State of the Air report. The report said many Central Valley cities still lag behind in efforts to make the state's air cleaner.