Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Taxi Drivers Exposed to Particulate Air Pollution in Beijing Show Marked Changes in Cardiac Function

17.09.2009
A study published online ahead of print in the peer-reviewed journal Environmental Health Perspectives (EHP) evaluated the relationship between exposure to fine particulate matter (PM2.5) and heart rate variability (HRV) in taxi drivers in Beijing, China before, during and after the 2008 Beijing Olympics. The report is among the first to document health effects of the massive air cleanup effort by China prior to the 2008 Beijing Olympics.

Study participants were exposed to a wider range of PM2.5 pollution levels than participants in previous air pollution studies. Average PM2.5 levels during the Olympics were less than half the average exposure levels experienced by the drivers before and after the Games – but still were higher than those experienced by other study populations. The results showed that increases in PM2.5 pollution levels were associated with decreases in HRV in young and healthy taxi drivers. Decreased HRV is a risk factor for adverse cardiac effects such as heart attacks.

“A major strength of this study is that we evaluated the same workers during three different time periods that had markedly different PM2.5 air pollution levels, which allowed us to compare the corresponding levels of 5-minute HRV indices among different time periods,” wrote first author Shaowei Wu and colleagues. “A comparison of raw five-minute HRV indices indicated that the low PM2.5 exposure period (during the Olympic Games) was associated with relatively high HRV, while higher PM2.5 exposures (before and after the Olympic Games) were associated with relatively low HRV.”

Other authors of the paper included Furong Deng, Jie Niu, Qinsheng Huang, Youcheng Liu and Xinbiao Guo. The study was supported by grants from the National Key Technologies R&D Program of China and the National Natural Science Foundation of China.

The article is available free of charge at http://www.ehponline.org/docs/2009/0900818/abstract.html.

EHP is published by the National Institute of Environmental Health Sciences (NIEHS), part of the U.S. Department of Health and Human Services. EHP is an Open Access journal. More information is available online at http://www.ehponline.org/.

Brogan & Partners Convergence Marketing handles marketing and public relations for the publication and is responsible for creation and distribution of this press release.

Jen Betz | Newswise Science News
Further information:
http://www.ehponline.org/
http://www.ehponline.org/docs/2009/0900818/abstract.html

More articles from Ecology, The Environment and Conservation:

nachricht How does the loss of species alter ecosystems?
18.05.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

nachricht Excess diesel emissions bring global health & environmental impacts
16.05.2017 | International Institute for Applied Systems Analysis (IIASA)

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can the immune system be boosted against Staphylococcus aureus by delivery of messenger RNA?

Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.

Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

How herpesviruses win the footrace against the immune system

26.05.2017 | Life Sciences

Water forms 'spine of hydration' around DNA, group finds

26.05.2017 | Life Sciences

First Juno science results supported by University of Leicester's Jupiter 'forecast'

26.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>