--- title: Study: Living Near a Highway May Contribute to Autism Risk description: There are many reasons why living near a highway is undesirable — the noise, the poor air quality, the endless stream of lost tourists using... canonical: https://time.com/archive/7143102/study-living-near-a-highway-may-contribute-to-autism-risk/ author: TIME Staff article:opinion: false article:content_tier: free article:published_time: 2010-12-17T17:31:31.000Z article:modified_time: 2026-03-16T11:21:23.824Z article:section: Health og:title: Study: Living Near a Highway May Contribute to Autism Risk og:description: There are many reasons why living near a highway is undesirable — the noise, the poor air quality, the endless stream of lost tourists using... og:url: https://time.com/archive/7143102/study-living-near-a-highway-may-contribute-to-autism-risk/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt7d0c73b6c4473a77/698a95029862f5cbec89bf33/highwayhousecropped.jpg?branch=production&width=307&quality=75&auto=webp&crop=16:9 og:image:width: 307 og:image:height: 173 og:image:alt: highwayhouseCropped og:type: article twitter:card: summary_large_image twitter:title: Study: Living Near a Highway May Contribute to Autism Risk twitter:description: There are many reasons why living near a highway is undesirable — the noise, the poor air quality, the endless stream of lost tourists using... twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt7d0c73b6c4473a77/698a95029862f5cbec89bf33/highwayhousecropped.jpg?branch=production&width=307&quality=75&auto=webp&crop=16:9 ---  * [Health](/section/health/) # Study: Living Near a Highway May Contribute to Autism Risk > Sponsored content. 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Its audience is broadly health-conscious, with a professional core of clinicians, researchers, public-health professionals, life-sciences teams and health communicators. by [TIME Staff](https://time.com/author/time-staff/) Dec 17, 2010 5:31 PM UTC  Michael Duva / Getty Images by [TIME Staff](https://time.com/author/time-staff/) Dec 17, 2010 5:31 PM UTC There are many reasons why living near a highway is undesirable — the noise, the poor air quality, the endless stream of lost tourists using your driveway to turn around.more But a new study published in _Environmental Health Perspectives_ offers another: children who lived near highways at birth had twice the risk of autism as those who live farther way. Researchers interviewed and examined 304 children with autism and, as a control, 259 typically developing children in the Los Angeles, San Francisco and Sacramento metropolitan areas. Researchers found that children whose families lived within 1,000 feet from a freeway at birth — about 10% of the children in the study — were twice as likely to have autism as those who lived farther from a highway. (**More on Time.com:** [Study: Some Autistic Brains Really Are Wired Differently](http://healthland.time.com/2010/11/03/study-some-autistic-brains-really-are-wired-differently/)) [](http://healthland.time.com/category/mental-health/autism/#ixzz18OJyoWBV) The link held up after controlling for other variables such as maternal age, parental education and smoking. Interestingly, however, the same effect did not apply to kids who lived near other heavily trafficked streets. The researchers theorized that the type and sheer quantity of chemicals distributed on highways are different from those on even the busiest city roadways. “This study isn’t saying exposure to air pollution or exposure to traffic causes autism,” lead author Heather Volk, researcher at the Saban Research Institute of Children’s Hospital Los Angeles, [told](http://articles.latimes.com/2010/dec/16/health/la-he-autism-20101217) the Los Angeles _Times_. “But it could be one of the factors that are contributing to its increase.” (**More on Time.com:** [Photos: A Journey into the World of Autism](http://www.time.com/time/photogallery/0,29307,1911931,00.html)) As LAWeekly [points out](http://blogs.laweekly.com/informer/2010/01/la%5Fautism%5Fclusters%5Fdiscovered.php), however, another recent study looking at autism clusters in the Los Angeles area found that rates of the disorder were higher in upper-middle-class neighborhoods where residents had higher-than-average levels of educational attainment or were located near major autism treatment centers (highway proximity wasn’t part of the equation). Presumably, the higher autism rates were due at least in part to better surveillance — something that tends to be lacking in lower-income communities. (**More on Time.com:**[](http://healthland.time.com/2010/10/14/1-in-5-kids-with-an-autistic-sibling-show-subtle-symptoms-too/)[1 in 5 Kids With an Autistic Sibling Show Subtle Symptoms Too](http://healthland.time.com/2010/10/14/1-in-5-kids-with-an-autistic-sibling-show-subtle-symptoms-too/)) There is no cure for autism, and researchers are still looking for its cause — some combination of genes and environment. In recent years, scientists have made headway in identifying certain changes that characterize the autistic brain, which may help lead to earlier diagnosis. Earlier diagnosis, in turn, may potentially lead to earlier intervention, and researchers think early treatment can mitigate autistic symptoms or may in some cases prevent the disorder altogether. Two weeks ago, a team of neurologists from Harvard and the University of Utah [reported](http://healthland.time.com/2010/12/03/study-more-hope-for-a-brain-scan-for-autism/) using an MRI brain scan to identify boys and men with autism with 92% accuracy. And earlier this year, a [study](http://healthland.time.com/2010/10/14/1-in-5-kids-with-an-autistic-sibling-show-subtle-symptoms-too/) in the journal _American Journal of Psychiatry_ found that 20% of normally developing siblings of autistic children also had language delays and subtle speech problems — similar but milder than those common in autism — adding evidence to the argument that genes play a role. **Related Links:** [Study: Asthma Hits Poor Minorities Worst in California](http://healthland.time.com/2010/12/20/study-asthma-hits-poor-minorities-worst-in-california/#ixzz18g2aoIly) [Using Videos to Help Diagnose Autism in Babies](http://healthland.time.com/2010/09/06/7130/) [Researchers Work to Improve Cancer Vaccines](http://www.aolhealth.com/2010/12/15/researchers-work-to-improve-cancer-vaccines/) ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/archive/7143102/study-living-near-a-highway-may-contribute-to-autism-risk/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/archive/7143102/study-living-near-a-highway-may-contribute-to-autism-risk/"},"headline":"Study: Living Near a Highway May Contribute to Autism Risk","datePublished":"2010-12-17T17:31:31.000Z","dateModified":"2026-03-16T11:21:23.824Z","description":"There are many reasons why living near a highway is undesirable — the noise, the poor air quality, the endless stream of lost tourists using...","url":"https://time.com/archive/7143102/study-living-near-a-highway-may-contribute-to-autism-risk/","keywords":["Autism","UCLA"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt7d0c73b6c4473a77/698a95029862f5cbec89bf33/highwayhousecropped.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"TIME Staff","url":"https://time.com/author/time-staff/"}],"articleSection":"Health","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt7d0c73b6c4473a77/698a95029862f5cbec89bf33/highwayhousecropped.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"highwayhouseCropped","caption":"","creditText":"Michael Duva / Getty Images","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/health/","name":"Health"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/archive/7143102/study-living-near-a-highway-may-contribute-to-autism-risk/","name":"Study: Living Near a Highway May Contribute to Autism Risk"}}]}] ```