L.A. air pollution may endanger babies, people in general
It looks like L.A. air could be killing us in more ways than one.
Two studies released Wednesday have linked toxic air pollution in Southern California to cancer and complications with birth.
Exposure to local traffic-generated pollution increased the risk of major complications and preterm birth, concluded a report published online in Environmental Health Perspectives. Local scientists studied the relationship of traffic pollution, preterm birth and a complication called preeclampsia that can lead to maternal and perinatal morbidity.
By measuring pregnant women's exposure to chemicals emitted by local traffic (nitrogen oxides and particulate matter), the researchers concluded that the risk for preeclampsia increased by as much as 42% at the highest exposures. The risk for "very preterm delivery" (meaning delivery when the fetus is less than 30 weeks old) increased by as much as 128% for women exposed to the highest levels.
The study was the first to look at the connection between preeclampsia and air toxics. It focused on births in Los Angeles and Orange counties.
Meanwhile, an Environmental Protection Agency study found that Los Angeles has some of the highest levels of cancer-related toxic air pollutants in the country. For residents of Cerritos, located at the heart of the L.A. basin, the EPA estimated the cancer risk due to air toxics at 1,200 in 1 million, the highest in the country and more than 33 times the national average. The statistic represents the expected number of additional deaths per million people, based on a lifetime exposure to the chemicals.
For much of the rest of the Los Angeles area, cancer risks ranged from 50 per million to 75 per million, according to the EPA.
The South Coast Air Quality Management District last year arrived at the same figure -- 1,200 per million -- for the Southern California region. But it noted that the cancer risk had come down since 1999. The study collected samples from sites around the Los Angeles basin, but not from the city of Cerritos.
The discrepancies may be partly because of AQMD's decision to include the cancer-causing potential of diesel emissions in its report. AQMD found that diesel was by far the biggest contributor to cancer-related air toxics. EPA did not assess the cancer-causing potential of diesel, stating "there currently is no unit risk estimate available."
Most of the cancer-causing chemicals the EPA detected in Cerritos were attributed to hydrazine, a chemical that could be coming from a nearby facility that recovers precious metals from old industrial parts.
Field inspectors and engineers were sent to the facility on Thursday to investigate, said AQMD's Sam Atwood. Although the air management authority has confirmed that the plant uses hydrazine, Atwood says "there is no reason for alarm at this point."
--Amy Littlefield
Photo: Smog over Los Angeles. Credit: Bryan Chan / Los Angeles Times








The main source of the toxic air in Cerritos is from a Santa Fe Springs company called Heareus, located at the corner of Carmenita Road and Alondra Blvd. I live less than 3,000 yards from this location, and 8 other toxic polluters that are polluting our community with Hydrazine and other killer toxics. Where is the truth? How come you haven't done a follow-up with the real facts? Car emissions are not the cause of our problems here in the Eastside of Cerritos. It's a REAL TOXIC COMPANY that NEEDS TO BE HELD ACCOUNTABLE FOR THEIR ACTIONS! HELP US LA TIMES....!!
Posted by: Randy Economy | July 06, 2009 at 07:33 AM
Why has so little of this been mentioned in the media? I didn't see much about it on the Tv News, nor did this report receive extensive coverge in the printed media. Are we so involved in the death of one great entertainer, that we cannot find space and time to coverand discuss issues important to all people? LA needs to do more to protect its citizens from dangerous emissions and pollutants. It is true that some progress has been made, but as traffic and congestion increases, more will need to be done to keep the air safe to breathe for all people.
Posted by: Irene Sanchez, El Segundo, CA | June 28, 2009 at 01:30 PM
Since pollution is causing so many fetal deaths, where are the Right To Lifers? Why aren't they demanding emission reductions???
Posted by: sheila | June 26, 2009 at 11:15 AM
In fact, the SCAQMD MATES III study, which did consider cancer risk from diesel particulate matter, found increased cancer risk of greater than 3,600 in a million in the areas near the L.A. and Long Beach ports. The ports have been trying to deal with this but industry continues to fight them in court.
Posted by: David Pettit | June 26, 2009 at 10:59 AM
Please stop the fear mongering. Air quality in Los Angeles is much improved since its regulation in the 1970s. Ecopolitics have become the central front in the war on individual freedom and capitalism. 21st century environmentalism has abandoned scientific rigor because the packaging of partisan political narratives is a more powerful propaganda tool in an age of superficial pop-cultural politics and gullible media complicity.
Posted by: PAUL TAYLOR EXAMINER | June 26, 2009 at 10:04 AM
How come you didn't attend the Cerritos City Council Meeting tonight to get the real facts? This article is totaly misleading, and ton of factual errors.
The AQMD and the EPA BOTH attended tonight's Cerritos City Council Meeting and they reported that the source of the toxic air in Cerritos comes from a company in Santa Fe Springs at the corner of Alondra and Carmenita. Read my blog at www.Economy4ABC.Blogspot.com and the City of Cerritos website at www.Cerritos.US for the facts.
Randy Economy
Cerritos Resident since 1968
Posted by: Randy Economy | June 26, 2009 at 02:44 AM