HOME >> MEDICINE >> NEWS
People near freeways are exposed to 30 times the concentration of dangerous particles

People who live, work or travel within 165 feet downwind of a major freeway or busy intersection are exposed to potentially hazardous particle concentrations up to 30 times greater than normal background concentrations found at a greater distance, according to two recently published UCLA studies.

The studies -- published in the Journal of the Air and Waste Management Association and in Atmospheric Environment -- show that proximity to a major freeway or highway dramatically increases exposure to "ultrafine" particles (tiny particles less than 0.1 micrometers in diameter), which are linked to neurological changes, mild pulmonary inflammation and cardiovascular problems. The U.S. Environmental Protection Agency (EPA) currently regulates particles less than 2.5 micrometers in diameter, and ultrafines represent the very smallest particles inhaled by the public.

Traffic-related air pollution is of great concern to Los Angeles, which has the most severe particle air-quality problem in the United States. The Los Angeles Basin is home to more than 15 million residents and 10 million vehicles contributing to its daily traffic. Motor vehicle emissions represent the most significant source of ultrafine particles. Moreover, recent toxicological studies have shown that ultrafine particles are more toxic than larger particles, potentially leading to increased mortality and illness with increased exposure to particulate matter.

"We believe this is the first study conducted in the United States that provides a detailed spatial profile of ultrafine particles near freeways," said William C. Hinds, a professor of environmental health sciences in the UCLA School of Public Health, who co-authored the studies with Yifang Zhu, a doctoral candidate in the School of Public Health.

The studies, conducted through the Southern California Particle Center and Supersite (SCPCS), assessed the size-distribution and concentration of the tiny ultrafine particles near m
'"/>

Contact: Wendy Hunter
whunter@ucla.edu
310-794-5980
University of California - Los Angeles
17-Oct-2002


Page: 1 2 3

Related medicine news :

1. People wounded in tsunami at risk of undetected fungal infections
2. People on food stamps cant afford heart-healthy meals
3. People are of two minds on moral judgments
4. People with low incomes more likely to develop brain tumors
5. People are averse to taking drugs
6. People with chronic eye diseases not getting recommended eye exams
7. People with large pupils can now get LASIK and avoid night vision disturbances
8. People only slightly more likely to die after episodes of stagnant air
9. People with food allergies should not only be careful about what they eat
10. People who give, live longer: U-M study shows
11. People who dont dip have higher levels of clot factor and risk

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/22/2019)... ... May 22, 2019 , ... With record-breaking starting positions, three drivers from Ed ... Jones have qualified their Chevrolets for the team’s entry in the 103rd running ... IndyCar Series qualifying run, Pigot was sitting in pole position in his No. 21 ...
(Date:5/22/2019)... ... 22, 2019 , ... In the second quarter of 2019, ... structure that aligns both the east and west coast operations under a single ... west coast operations center, and Global Medical Imaging has relocated nearby to the ...
(Date:5/22/2019)... ... May 22, 2019 , ... Today, The Fenway Institute ... cervical cancer among transmasculine patients who were assigned a female sex at birth ... Although over 90 percent of such patients retain female reproductive organs, they are ...
(Date:5/22/2019)... NEW YORK (PRWEB) , ... May 22, 2019 ... ... recently published paper by Walmart and Covera Health studying the economic impact of ... for Walmart, the key issue is that the interpretations of the diagnostic imaging ...
(Date:5/22/2019)... ... ... There are over 2.3 million people with multiple sclerosis (MS) worldwide; in the US ... are diagnosed each year. The need for precision medicine-based approaches to diagnose and treat ... manage due to a lack of identified biomarkers that predict disease onset, progression and ...
Breaking Medicine News(10 mins):
(Date:5/23/2019)... ... May 23, 2019 , ... NATIONAL OFFICE – BKD CPAs ... national industry partner (NIP) of the health care practice. Former NIP Eddie Marmouget will ... to be chosen to lead our national health care practice and work more closely ...
(Date:5/22/2019)... ... May 22, 2019 , ... ... pleased to announce the successful closing of the $22,375,000 Series 2019 for Trevecca ... Educational Facilities Board of the Metropolitan Government of Nashville and Davidson County, Tennessee. ...
(Date:5/22/2019)... Ala. (PRWEB) , ... May 22, 2019 , ... ... Modern Healthcare magazine ranked Robins & Morton third among the top general contractors ... $952,929,266 in revenue and more than 3.5 million square feet in completed healthcare ...
Breaking Medicine Technology:
Cached News: