Navigation Links
Indoor air pollution increases asthma symptoms
Date:2/19/2009

A study by researchers at the Johns Hopkins University found an association between increasing levels of indoor particulate matter pollution and the severity of asthma symptoms among children. The study, which followed a group of asthmatic children in Baltimore, Md., is among the first to examine the effects of indoor particulate matter pollution. The results are published in the February 2009 edition of the journal Environmental Health Perspectives.

Particulate matter is an airborne mixture of solid particles and liquid droplets. The solid particles come in numerous shapes and sizes and may be composed of different chemical components. Fine particles measure 2.5 microns or less in size (approximately 1/30th the diameter of a human hair) and can penetrate deep into the body's respiratory system. Coarse particles fall between 2.5 and 10 microns in diameter. These larger particles can also enter the respiratory system and can be produced indoors through activities such as cooking and dusting. The U.S. Environmental Protection Agency (EPA) regulates outdoor levels of fine particle pollution, but does not have a standard for coarse particle pollution. There are no regulations for indoor pollution.

For the study, researchers from the Center for Childhood Asthma in the Urban Environmenta joint center of the Johns Hopkins Bloomberg School of Public Health and the Johns Hopkins School of Medicinefollowed 150 asthmatic children, ages 2 to 6, for six months. Environmental monitoring equipment was used to measure the air in the child's bedroom for over three three-day intervals. Air measurements were taken at the beginning of the study, after 3 months and again after 6 months. Ninety-one percent of the children who participated in the study were African-American, from lower socioeconomic backgrounds, and spent most of their time indoors.

"We found that substantial increases in asthma symptoms were associated both with higher indoor concen
'/>"/>

Contact: Tim Parsons
tmparson@jhsph.edu
410-955-7619
Johns Hopkins University Bloomberg School of Public Health
Source:Eurekalert

Page: 1 2

Related biology news :

1. The Clorox Companys new indoor allergen product reduces common indoor allergens up to 90 percent
2. e-Science points to pollution solutions
3. Groundbreaking Canada-US study proves link between emissions and mercury pollution in fish
4. Groundbreaking Canada-US study proves link between emissions and mercury pollution in fish
5. Nutrient pollution drives frog deformities by ramping up infections, says CU-Boulder study
6. RIT to study air pollution and greenhouse gas emissions in the Great Lakes region
7. Time spent in car drives up air pollution exposure
8. Pollution from marine vessels linked to heart and lung disease
9. Local sources major cause of US near-ground aerosol pollution
10. ASU researchers use NASA satellites to improve pollution modeling
11. Fighting pollution the poplar way: Trees to clean up Indiana site
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/19/2014)... MA -- MIT chemical engineers have devised a new ... are released slowly over a few weeks. When applied ... the body to rapidly form new bone that looks ... type of coated scaffold could offer a dramatic improvement ... involves transplanting bone from another part of the patient,s ...
(Date:8/19/2014)... born with neonatal abstinence syndrome (NAS) secondary to ... going through withdrawal than others, but the underlying ... epigenetic (when genes are turned on or off) ... researchers at Boston University School of Medicine (BUSM) ... of its kind study to identify some of ...
(Date:8/19/2014)... seas during warm phases and became extinct during cold ... a link between marine crocodilian diversity and the evolution ... 140 million years. , The research, led by ... and formerly from the University of Bristol, UK is ... crocodiles are ,cold-blooded, animals that mainly live in fresh ...
Breaking Biology News(10 mins):Engineering new bone growth 2Engineering new bone growth 3In-utero methadone, Subutex exposure could alter gene expression, cause severe Neonatal Abstience Syndrome 2Evolution of marine crocodilians constrained by ocean temperatures 2
... , WALL, N.J., Dec. 21 BIO-key International, ... biometric identification solutions, today announced the appointment of Cecilia ... Ceci replaces Tom Colatosti, BIO-key,s Chairman, who had been ... http://www.newscom.com/cgi-bin/prnh/20050509/BIOKEYLOGO ) , Ceci joined BIO-key in 2007 and ...
... Biometric Society has chosen Springer as the co-publisher of ... (JABES). The quarterly journal will start publication ... 2010. Backfiles to 2001 will be available on ... Journal of Agricultural, Biological, and Environmental Statistics publishes ...
... field, researchers from The University of Western Ontario are studying ... Why is this important? Because the common fruit fly ( ... survive freezing and the little creature just so happens to ... finding a way to freeze them for research purposes is ...
Cached Biology News:BIO-key(R) Appoints Cecilia Welch as Chief Financial Officer 2BIO-key(R) Appoints Cecilia Welch as Chief Financial Officer 3International Biometric Society co-publishes journal with Springer 2The how and why of freezing the common fruit fly 2
(Date:8/18/2014)... 18, 2014 BioElectronics Corporation (OTC ... medical devices said that its EVP Dr. ... CEOLIVE.TV as part of its Executive Interview ... available at http://ceolive.tv/bioelectronics-corp-otc-biel/biel-videos/2282-ceolive-tv-interview-bioelectronics-corp-otcqb-biel ... investors the unique advantages of BioElectronics patented ...
(Date:8/18/2014)... with unprecedented efficiency and data storage may ... built-in electric polarizations to read and write ... popular data-driven technology. But ferroelectrics must first ... a curious habit of "forgetting" stored data. ... Department of Energy,s Brookhaven National Laboratory have ...
(Date:8/18/2014)... According to a new ... Science Reagents Market(Products- PCR Reagent Kits, Cell and ... Reagents and Others; End Users- Commercial and Contract ... Forensic Laboratories)- Global Industry Analysis, Size, Share, Growth, ... life science reagents market was valued at USD ...
(Date:8/18/2014)... Fla. , Aug. 18, 2014 TNI ... biotechnology company pioneering the manufacturing and marketing of innovative ... that the Company is providing a second notice of ... In making the announcement, Noreen Griffin , ... you in advance for your participation in the Annual ...
Breaking Biology Technology:BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 2BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 3Promising ferroelectric materials suffer from unexpected electric polarizations 2Promising ferroelectric materials suffer from unexpected electric polarizations 3Promising ferroelectric materials suffer from unexpected electric polarizations 4Global Life Science Reagents Market Expected to Reach USD 25.7 Billion in 2019: Transparency Market Research 2Global Life Science Reagents Market Expected to Reach USD 25.7 Billion in 2019: Transparency Market Research 3Global Life Science Reagents Market Expected to Reach USD 25.7 Billion in 2019: Transparency Market Research 4Global Life Science Reagents Market Expected to Reach USD 25.7 Billion in 2019: Transparency Market Research 5TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 2TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 3TNI BioTech Inc., provides 2nd Notice of Annual Meeting September 4, 2014 4
... , , FLAGSTAFF, Ariz., July 24 ... Australia, New Zealand, Great Britain, Myanmar, the Philippines and Indonesia are ... Radisson Woodlands Hotel to share research findings that will determine the ... , On Sunday morning, Mayor Sara Presler will ...
... ... spaces leased to biotech, pharma and medical devices tenants are faring better in some markets ... ... recession, the credit crunch, pharmaceuticals industry mergers and an overall slump in the commercial property ...
... , , ... PROLOR Biotech, Inc. (OTC Bulletin Board: PBTH), formerly Modigene Inc., today announced ... up to $10 million of the company,s newly issued 10% cumulative convertible preferred ... agreements, the company closed on the issuance of one million preferred shares for ...
Cached Biology Technology:World Renowned Scientists Gather to Share Latest Information on Answer to Wildlife Reproductive Fertility Control 2Life Sciences Real Estate Outperforming Other Sectors 2Life Sciences Real Estate Outperforming Other Sectors 3PROLOR Biotech Announces $10 Million Preferred Stock Line From Members of The Frost Group 2PROLOR Biotech Announces $10 Million Preferred Stock Line From Members of The Frost Group 3PROLOR Biotech Announces $10 Million Preferred Stock Line From Members of The Frost Group 4
Biotin-OSu is used to label proteins, immunological agents, DNA and synthetic oligonucleotides. Biotin labeling is detected through enzymatically labeled avidin or streptavidin proteins that conforma...
RAT ANTI MOUSE JAM-2 Immunogen: Recombinant soluble JAM-2...
...
...
Biology Products: