HOME >> BIOLOGY >> NEWS
Harvard Six Cities Study follow up: Reducing soot particles is associated with longer lives

An eight-year follow up to the landmark Harvard Six Cities Study has found an association between people living longer and cities reducing the amount of fine particulate matter, or soot, in their air. The study has been published in the March 15 issue of the American Journal of Respiratory and Critical Care Medicine.

The follow-up study found that an average of three percent fewer people died for every reduction of one g/m3 in the average levels of PM2.5 fine particulate matter, defined as having a diameter of 2.5 microns or less -- narrower than the width of a human hair. This decreased death rate is approximate to saving 75,000 people per year in the U.S., said lead author Francine Laden, HSPH Assistant Professor of Environmental Epidemiology.

The largest drops in mortality rates were in cities with the greatest reduction in fine particulate air pollution. The findings remained valid after controlling for the general increase in adult life expectancy in the U.S. during both the original and follow-up study periods (1979 to 1989 and 1990 to 1998).

Particulate matter is a complex mixture of extremely small particles and liquid droplets that can be directly emitted, as in smoke from a fire, or it can form in the atmosphere from reactions of gases such as sulfur dioxide, according to the Environmental Protection Agency (EPA).

The original Harvard Six Cities Study evaluated the effects of pollution on adults in the 1970s and 1980s. The results found a strong, positive correlation between levels of air pollution and mortality. The study led to a revision of existing air quality standards by the EPA.

The follow-up study population consisted of nearly 8,100 white participants residing in Watertown, Massachusetts; Kingston and Harriman, Tennessee; St. Louis, Missouri; Steubenville, Ohio; Portage, Wyocena, and Pardeeville, Wisconsin; and Topeka, Kansas.

The annual mean concentration of fine particulate matter declined du
'"/>

Contact: Christina Roache
croache@hsph.harvard.edu
617-432-6052
Harvard School of Public Health
15-Mar-2006


Page: 1 2

Related biology news :

1. Harvard and U. Pittsburgh researchers explain carbon monoxides anti-inflammatory effects
2. Harvard team creates spray drying technique for TB vaccine
3. NSF awards Harvard Forest $4.9 million to study landscape change
4. Harvard scientists identify compounds that stimulate stem cell growth in the brain
5. Students from U of Colorado at Boulder and Harvard triumph in SIAMs Math Contest in Modeling
6. NJIT professor to address Water Industry Conference At Harvard Club about desalinating water
7. Harvard Medical signs agreement with Merck to develop potential therapy for macular degeneration
8. CU, Harvard researchers team up to break down causes of Alzheimers
9. News conference event and call-in announcing findings from Harvard study on climate change
10. Brown-Harvard team solves mobile DNAs surgical sleight-of-hand
11. Harvard, Texas A&M scientists develop new laser

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


(Date:7/18/2020)... ... July 16, 2020 , ... A study has ... Invictus Medical Neoasis™ active noise control device to attenuate typical noises in a ... device attenuated the alarm sounds from patient monitors, ventilators and other bedside devices ...
(Date:7/10/2020)... ... July 08, 2020 , ... ... and Gene Therapy Regulation, An FDAnews Webinar, Wednesday, July 22, 2020 • 1:30 ... study, but what is the most effective way to complete one? Will the ...
(Date:7/4/2020)... ... 2020 , ... Aesthetics Biomedical (ABM), a leading aesthetics product ... only the products and treatments developed, but also the dedicated team behind the ... brands built by ABM have received several honors already for 2020, each of ...
Breaking Biology News(10 mins):
(Date:7/22/2020)... ... ... Join experts from Reed Tech , Gary Saner, Sr. Manager, Information Solutions Life ... webinar on Thursday, August 13, 2020 at 11am EDT (4pm BST/UK). , The ... medical devices, the NMPA has departments dealing with medical device registration (pre-market approvals) and ...
(Date:7/18/2020)... MILWAUKEE (PRWEB) , ... July 16, 2020 , ... “We ... at Third Wave Bioactives. “It’s the only technology of its kind on the market ... flavor of onions with the protective capacity of traditional cultured ingredients, creating a natural ...
(Date:7/18/2020)... ... July 17, 2020 , ... dicentra ... life sciences and food industries, is pleased to announce that Charles Galea has ... Business Development. , Charles is an accomplished and results-driven sales executive with over ...
(Date:7/10/2020)... ... July 09, 2020 , ... ... Massachusetts Institute of Technology (MIT) has expanded the company’s exclusive license to ... move into the point-of-care diagnostic market, focusing initially on the SARS-CoV-2 biosensor. ...
Breaking Biology Technology:
Cached News: