Navigation Links
Provocative new Montreal study probes link between breast cancer and air pollution
Date:10/6/2010

This release is available in French.

Air pollution has already been linked to a range of health problems. Now, a ground-breaking new study suggests pollution from traffic may put women at risk for another deadly disease. The study, published in the prestigious journal Environmental Health Perspectives, by researchers from The Research Institute of the MUHC (RI MUHC; Dr. Mark Goldberg), McGill University (Drs. Goldberg, Dan Crouse and Nancy Ross), and Universit de Montral (Dr. France Labrche), links the risk of breast cancer the second leading cause of death from cancer in women to traffic-related air pollution.

"We've been watching breast cancer rates go up for some time, "says study co-author Dr. Mark Goldberg, a researcher at The RI MUHC. "Nobody really knows why, and only about one third of cases are attributable to known risk factors. Since no-one had studied the connection between air pollution and breast cancer using detailed air pollution maps, we decided to investigate it."

Dr. Goldberg and his colleagues approached the problem by combining data from several studies. First, they used the results of their 2005-2006 study to create two air pollution "maps" showing levels of nitrogen dioxide (NO2), a by-product of vehicular traffic, in different parts of Montreal in 1996 and 10 years earlier in 1986.

Then, they charted the home addresses of women diagnosed with breast cancer in a 1996-97 study onto the air pollution maps. Their findings were startling. The incidence of breast cancer was clearly higher in areas with higher levels of air pollution.

"We found a link between post-menopausal breast cancer and exposure to nitrogen dioxide (NO2), which is a 'marker' for traffic-related air pollution", says Dr. Goldberg. "Across Montreal, levels of NO2 varied between 5 ppb to over 30 ppb. We found that risk increased by about 25 per cent with every increase of NO2 of five parts per billion. Another way of saying this is that women living in the areas with the highest levels of pollution were almost twice as likely to develop breast cancer as those living in the least polluted areas."

These disturbing results must be interpreted with great caution, warns Dr. Goldberg. "First of all, this doesn't mean NO2 causes breast cancer," he explains. "This gas is not the only pollutant created by cars and trucks, but where it is present, so are the other gases, particles and compounds we associate with traffic some of which are known carcinogens. NO2 is only a marker, not the actual carcinogenic agent."

A study of this kind can be subject to unknown errors. While the researchers tried to account as much as possible for them, areas of uncertainty remain. "For example, we don't know how much the women in the study were exposed to pollution while at home or at work, because that would depend on their daily patterns of activity, how much time they spend outdoors and so on," says Dr. Goldberg.

Dr. Labrche adds "Some studies published in the US have also shown possible links between cancer and air pollution. At the moment, we are not in a position to say with assurance that air pollution causes breast cancer. However, we can say that the possible link merits serious investigation. From a public health standpoint, this possible link also argues for actions aimed at reducing traffic-related air pollution in residential areas."


'/>"/>

Contact: Julie Robert
julie.robert@muhc.mcgill.ca
514-843-1560
McGill University Health Centre
Source:Eurekalert

Related medicine news :

1. Hunk Calendar Photographer Resurrects Erotic Male Modeling Club and Launches Provocative E-exhibition
2. "What If We're Him?" -- New Book Poses Provocative Perspective on Jesus, God
3. Montreal researchers shed light on common juvenile cancer
4. Health care research: $1.6 million in new funding for University of Montreal
5. Despite Treatment, Employees with Depression Generate Higher Absentee Costs, According to Thomson Reuters Study
6. American Council on Exercise (ACE) Study Reveals Kettlebells Provide Powerful Workout in Short Amount of Time
7. TV drama can be more persuasive than news program, study finds
8. Study carried out into biological risks of eating reptiles
9. Neuroimaging study may pave way for effective Alzheimers treatments
10. Study finds racial gaps continue in heart disease awareness
11. Luth Researchs IndicatorEDG(TM) Study Finds Americans Hopes of Achieving Their Dreams Are Fading
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... ... June 27, 2016 , ... ... strategic partnership with Connance, a healthcare industry leader providing predictive analytics to ... technology combine to provide health systems, hospitals and ambulatory surgical centers with ...
(Date:6/26/2016)... Battle Creek, Michigan (PRWEB) , ... June 26, 2016 , ... ... abuse, joined as sponsor of the 2016 Cereal Festival and World’s Longest Breakfast Table ... held in honor of the city’s history as home to some of the world’s ...
(Date:6/26/2016)... ... June 26, 2016 , ... Many women are ... with endometriosis. These women need a treatment plan to not only alleviate symptoms ... can help for preservation of fertility and ultimately achieving a pregnancy. The specialists ...
(Date:6/25/2016)... , ... June 25, 2016 , ... "With 30 hand-drawn ... specific project," said Christina Austin - CEO of Pixel Film Studios. , ProHand ... all within Final Cut Pro X . Simply select a ProHand generator and ...
(Date:6/25/2016)... , ... June 25, 2016 , ... On Friday, June ... a Bronze Wellness at Work award to iHire in recognition of their exemplary accomplishments ... of the 7th annual Maryland Workplace Health & Wellness Symposium at the BWI Marriott ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... June 24, 2016 Research ... "Structural Electronics 2015-2025: Applications, Technologies, Forecasts" ... In-Mold Electronics, Smart Skin, Structural Health ... Structural electronics involves electronic and/or electrical ... structures, replacing dumb structures such as vehicle bodies ...
(Date:6/24/2016)... -- According to a new market research ... Safety Pen Needles), Needle Length (4mm, 5mm, 6mm, 8mm, ... Purchase (Retail, Non-Retail) - Trends & Global Forecasts to ... for the forecast period of 2016 to 2021. This ... 2021 from USD 1.65 Billion in 2016, growing at ...
(Date:6/23/2016)... 23, 2016 Research and Markets has ... - Forecast to 2022" report to their offering. ... for the patients with kidney failure, it replaces the function ... the patient,s blood and thus the treatment helps to keep ... in balance. Increasing number of ESRD patients ...
Breaking Medicine Technology: