Navigation Links
New map offers a global view of health-sapping air pollution
Date:9/23/2010

In many developing countries, the absence of surface-based air pollution sensors makes it difficult, and in some cases impossible, to get even a rough estimate of the abundance of a subcategory of airborne particles that epidemiologists suspect contributes to millions of premature deaths each year. The problematic particles, called fine particulate matter (PM2.5), are 2.5 micrometers or less in diameter, about a tenth the fraction of human hair. These small particles can get past the body's normal defenses and penetrate deep into the lungs.

To fill in these gaps in surface-based PM2.5 measurements, experts look toward satellites to provide a global perspective. Yet, satellite instruments have generally struggled to achieve accurate measurements of the particles in near-surface air. The problem: Most satellite instruments can't distinguish particles close to the ground from those high in the atmosphere. In addition, clouds tend to obscure the view. And bright land surfaces, such as snow, desert sand, and those found in certain urban areas can mar measurements.

However, the view got a bit clearer this summer with the publication of the first long-term global map of PM2.5 in a recent issue of Environmental Health Perspectives. Canadian researchers Aaron van Donkelaar and Randall Martin at Dalhousie University, Halifax, Nova Scotia, Canada, created the map by blending total-column aerosol amount measurements from two NASA satellite instruments with information about the vertical distribution of aerosols from a computer model.

Their map, which shows the average PM2.5 results between 2001 and 2006, offers the most comprehensive view of the health-sapping particles to date. Though the new blending technique has not necessarily produced more accurate pollution measurements over developed regions that have well-established surface-based monitoring networks, it has provided the first PM2.5 satellite estimates in a number of developing co
'/>"/>

Contact: Adam Voiland
avoiland@sesda2.com
301-352-4631
NASA/Goddard Space Flight Center
Source:Eurekalert

Page: 1 2 3 4 5

Related medicine news :

1. Theravive.com Offers A Free Therapist Listing For Credentialed Counselors and Psychologists
2. Autism Science Foundation Offers IMFAR Grants to Autism Stakeholders
3. PERSONALABS Offers Discounted Healthy Heart Online Blood Tests in February
4. CED Solutions Offers Free 3-Day Technical Windows 7 Certification Course for Unemployed Individuals
5. Is a Tummy Tuck Right for Me? Alabama Plastic Surgeon Dr. David Durst Offers Tips as the Popularity of Surgical Cosmetic Enhancement Continues to Rise
6. AGA offers new recommendations for CRC surveillance for certain patients with IBD
7. Research validates surgery alone offers reasonable overall survival for stage I SCLC
8. Electronic Interconnect Offers Medical Electronics, PCBs, Design Engineering
9. Lo Cest Offers a Free Download of a New Bible for the Gay Community
10. MU offers training program to improve health literacy
11. Hawaiian-shirt.net Offers 10 Tips To Beat The Winter Blues: Things You Can Do Right Now to Have a Better Day
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/4/2015)... In response to the proposed mammography ... (USPSTF), Strategic Radiology® (SR®) fully aligns itself with ... Gynecologists (ACOG), the American College Of Surgeons, Susan ... (ACS), American College of Radiology (ACR), and Society ... screening mammography for women beginning at age 40 ...
(Date:5/4/2015)... For partners who’d like to become parents, Astroglide ... TTC™ (Trying to Conceive) . Unlike traditional lubricants that ... TTC™ is specially formulated to provide a better environment ... Disease Control, an average of one in eight ... pregnancy, and over 7.4 million women have ...
(Date:5/4/2015)... 04, 2015 Fast on the heels ... Trace Amounts, and Allison Folmar, JD, join over 150 ... internationally. , On Sunday, May 24, the conference presents ... possible?" Are you interested in Ryan Hinds' recovery story? ... our war against autism was written by Marcia ...
(Date:5/4/2015)... 2015 “St. Louis has long represented ... the West,” so it is the perfect place for ... Dr. Ben Litalien, Chief Development Officer for Zerorez. ... and will provide veterans with a $10,000 discount on ... to have a number of Military Veterans in its ...
(Date:5/3/2015)... 03, 2015 AvePoint, ... platforms and devices, today announced it is a ... Professionals (IAPP) Asia Privacy Forum, taking place May ... the event, AvePoint will showcase its compliance, risk, ... platforms. , Visit AvePoint for New Solutions ...
Breaking Medicine News(10 mins):Health News:Strategic Radiology® Takes Unified Stance Against New USPSTF Guidelines 2Health News:Strategic Radiology® Takes Unified Stance Against New USPSTF Guidelines 3Health News:Strategic Radiology® Takes Unified Stance Against New USPSTF Guidelines 4Health News:Strategic Radiology® Takes Unified Stance Against New USPSTF Guidelines 5Health News:Astroglide Announces the Birth of Its New Baby: Astroglide TTC 2Health News:Astroglide Announces the Birth of Its New Baby: Astroglide TTC 3Health News:Perhaps the most important information families touched by autism will ever hear is available this month at international conference in Chicago 2Health News:Perhaps the most important information families touched by autism will ever hear is available this month at international conference in Chicago 3Health News:Perhaps the most important information families touched by autism will ever hear is available this month at international conference in Chicago 4Health News:Zerorez® Creates “Gateway” for Veterans--Announces VetFran Participation. Plans Expansion into the St. Louis Region. 2Health News:Zerorez® Creates “Gateway” for Veterans--Announces VetFran Participation. Plans Expansion into the St. Louis Region. 3Health News:AvePoint Showcases Compliance and Data Privacy Solutions as Platinum Sponsor of IAPP Asia Privacy Forum 2015 2Health News:AvePoint Showcases Compliance and Data Privacy Solutions as Platinum Sponsor of IAPP Asia Privacy Forum 2015 3Health News:AvePoint Showcases Compliance and Data Privacy Solutions as Platinum Sponsor of IAPP Asia Privacy Forum 2015 4
... hernias are one of the most common conditions treated ... annually. Although ventral hernia repair (VHR) is a common ... infection has been identified as a consistent risk factor ... which appears in the November issue of The ...
... such as Viagra use is linked to development of vision ... disorders have used Viagra medicines. It is found that it ... cause risk of blindness. Men most at risk for the ... heart disease, high blood pressure and high cholesterol, among other ...
... Findings presented at the American Society of Therapeutic Radiation ... antigen (PSA) // significantly reduces the mortality associated with ... most prevalent type of cancer found in men after ... in the male reproductive system, which produces some of ...
... is essential for the lipid and carbohydrate metabolism, and ... to insulin.// The use of glucose by the peripheral ... has potential impact on long-term complications. ,In ... and an association between the proper metabolic control and ...
... and colleagues have identified a candidate gene, Sipa1, ... in cancer. Cancer mortality is most often the ... studies from Kent Hunter’s group demonstrated that the ... efficiency. They expressed the polyoma middle-T transgene in ...
... in women after menopause has been found to enhance ... cholesterol (the “good” cholesterol) in women, according to a ... and is characterized by decreased levels of the female ... the vagina and uterus. In addition the hormone ...
Cached Medicine News:Health News:Predictors Of Wound Infection In Ventral Hernia Repair 2Health News:Impotence drug such as Viagra may cause Vision Loss 2Health News:Carnitine deficiency in children and adolescents with type 1 diabetes 2Health News:Researchers Identify Sipa 1 Gene, Responsible For Cancer Metastasis 2Health News:Testosterone Therapy can improve sexual function in postmenopausal women 2
(Date:5/4/2015)... May 4, 2015 Imprimis Pharmaceuticals, Inc. (NASDAQ: ... development and commercialization of proprietary compounded drug therapies, today ... financial results on Wednesday, May 13, 2015.  The company ... (1:30 p.m. PDT) on the same day to discuss ... The conference call and webcast will be open to ...
(Date:5/4/2015)... 4, 2015 EspeRare today announced ... Orphan Drug Designation (ODD) for rimeporide, its lead compound ... is a rare, life-threatening disease affecting boys early in ... is the most common and serious form of paediatric ... exchanger type-1 inhibitor, originally developed by Merck Serono in ...
(Date:5/1/2015)... CHAPEL HILL, N.C. , May 1, 2015 /PRNewswire/ ... from payers for its high price but manufacturer Gilead ... programs, strategic worldwide pricing, and effective public relations campaigns. ... and promise of less severe side effects propelled the ... quarter of 2014, the therapy,s first quarter on the ...
Breaking Medicine Technology:Imprimis Pharmaceuticals to Host its First Quarter 2015 Financial Report Conference Call and Webcast on May 13, 2015 at 4:30 p.m. EDT 2Imprimis Pharmaceuticals to Host its First Quarter 2015 Financial Report Conference Call and Webcast on May 13, 2015 at 4:30 p.m. EDT 3EspeRare's Investigational Compound Rimeporide Receives European Orphan Drug Designation in Duchenne Muscular Dystrophy 2New Study Examines Success Lessons of Sovaldi's and Harvoni's Blockbuster Launches 2
... Inc. (Nasdaq: STXS ) announced today financial results ... line with the preliminary results reported on October 13, 2010. ... margins, and reductions in both operating loss and net loss. ... million, compared to $13.3 million in the third quarter 2009. ...
... 2010 Cambrex Corporation (NYSE: CBM ) ... released on Wednesday, November 3, 2010 after the market ... conference call to discuss the third quarter 2010 financial ... November 4, 2010 at 8:30 a.m. Eastern Time Dial-in: ...
Cached Medicine Technology:Stereotaxis Reports Third Quarter Financial Results 2Stereotaxis Reports Third Quarter Financial Results 3Stereotaxis Reports Third Quarter Financial Results 4Stereotaxis Reports Third Quarter Financial Results 5Stereotaxis Reports Third Quarter Financial Results 6Stereotaxis Reports Third Quarter Financial Results 7
Gentamicin is a selection antibiotic used for selection of a Bac-to-Bac recombinant expression bacmid following transposition. Gentamicin is provided as a solution at a concentration of 50 mg/ml....
1.0% Tryptone, 0.5% yeast extract, 0.5% Sodium Chloride, 1.5% agarose....
1% tryptone, 0.5% yeast extract, 1.0% Sodium Chloride, 1.5% agar....
Luria bertani broth: 1.0% Tryptone, 0.5% Yeast Extract, 1.0% Sodium Chloride....
Medicine Products: