From: Associated Press
Published November 15, 2005 12:00 AM

Los Angeles Has the Worst Air Pollution in the United States, Government Says

LOS ANGELES — Los Angeles has cleaned up its air, but apparently not enough -- its skies are the most polluted in the United States, the government's environmental agency says.


The greater Los Angeles region shoved aside Houston and the San Joaquin Valley in California as the national smog capital in 2005, despite having cleaner air this year than last, according to the federal Environmental Protection Agency, The Los Angeles Times reported Monday.


Air quality in Los Angeles, Orange, Riverside and San Bernardino counties exceeded the EPA's smog standard on 84 days this year. The EPA considers the totals to be final numbers for 2005 because the smog season runs from May through September.


"It's a tough job cleaning up the ozone at this point because there are not a lot of easy emissions to target," said Joe Cassmassi, planning and rules manager for the South Coast Air Quality Management District, the region's main smog-fighting agency. "The low-hanging fruit, as a lot of people like to say, has been taken."


Houston and the San Joaquin Valley, which in recent years rivaled or surpassed Los Angeles as the country's smoggiest areas, enjoyed exceptionally clean air this year.


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But Los Angeles' rank comes with an asterisk.


The EPA this year switched from measuring smog over a one-hour period to measuring it over an eight-hour span.


Under the old system, Houston would have edged out Los Angeles for the top spot by violating the standard on 33 days compared to 30 days.


Although it led the nation in smoggy days, the Los Angeles region's air is considerably cleaner than it used to be.


The air violated federal standards on 90 days in 2004 and 120 days in 2003. And in 1976, it exceeded federal standards for more than half the year.


Los Angeles could lose federal transportation funding if the area continues to violate the smog standard by 2021.


Source: Associated Press


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