Traffic-Related Pollution and Early Childhood Cancers


cancer 2011

cancer 2011 (Photo credit: mike r baker)

UCLA researchers find potential link between auto pollution, some childhood cancers(UCLA Press Release,Apr. 9, 2013)

Also Quoted Here: Exposure to Air Pollution During Pregnancy Linked to Increased Incidence of Specific Pediatric Cancers(Science Daily, Apr. 9, 2013)

And here: Road Traffic Pollution as Serious as Passive Smoke in the Development of Childhood Asthma(Science Daily, Mar. 21, 2013)

And here: Many US Public Schools In ‘Air Pollution Danger Zone’(Science Daily, Aug. 20, 2008)

Today we review a paper presented at a conference of the American Association for Cancer Research (but not published as yet) on the links between exposure of a fetus and first year of life to traffic-related air pollution in California. Results indicate a statistical link with 14 to 19 % increased risk for pediatric cancers affecting white blood cells (leukemia), tumours and the eyes. More research is called for to establish a cause and effect link, such as between traffic-related pollution and asthma for children.

To see Key Quotes and Links to key reports about this post, click HERE

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3 Responses

  1. One of the most comprehensive, long-term studies to date examining the impact of air pollution exposure on children’s respiratory health is the Children’s Health Study (CHS). Beginning in 1992, University of Southern California researchers collected data from over 6,000 children attending public schools in 12 selected Southern California communities with varying levels of air pollution for a period of 8 or more years. This study has reported on several important findings, including short-term effects of air pollution, such as acute respiratory illnesses and asthma attacks, and longer-term health effects, such as chronic respiratory diseases and development of asthma. For example, researchers found that short-term increases in ozone concentrations were associated with increased school absences due to respiratory illnesses. There is now ample evidence from this and many other studies showing that ozone and particles exacerbate symptoms in asthmatic children. CHS researchers also reported reduced lung function and increased chronic cough and bronchitis in young children and teens chronically exposed to high levels of air pollution, especially those living in areas with high particle concentrations. Southern California children playing many outdoor sports in high-ozone areas were three times more likely to develop asthma. Generally researchers agree that air pollution can trigger asthma attacks and worsen asthma symptoms, but studies have not yet provided unequivocal evidence that it can cause asthma to develop.

  2. We generally confirmed that traffic-related air pollution was associated with adverse reproductive outcomes regardless of the exposure assessment method employed, yet the size of the estimated effect depended on how both temporal and spatial variations were incorporated into exposure assessment. The LUR model was not transferable even between two contiguous areas within the same large metropolitan area in Southern California.

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