Cardiology

Counties with dirtier air have more stroke deaths

In a nationwide study, counties with dirtier air had higher rates of stroke deaths and shorter life expectancies, according to preliminary research to be presented in Honolulu at the American Stroke Association's International ...

Health

Air pollution increases ER visits for breathing problems

As levels of ozone and fine particulate pollution (PM2.5) rise, more patients end up in the ER with breathing problems, according to the largest U.S. study of air pollution and respiratory emergency room visits of patients ...

Medical research

As the oceans rise, so do your risks of breast cancer

It is encouraging to see greater attention in the media to the issue of climate change and its effects on the life-support systems of the planet. The link between breast cancer and the environment, however, is being overlooked.

Inflammatory disorders

PM2.5 exposure linked to asthma rescue medication use

(HealthDay)—For individuals with asthma, increased fine particulate matter (PM2.5) exposure is associated with increased weekly rescue inhaler use, according to a study published online Nov. 26 in the Proceedings of the ...

Diseases, Conditions, Syndromes

Rural residence, poverty are risk factors for COPD

(HealthDay)—Rural residence and poverty are risk factors for chronic obstructive pulmonary disease (COPD), according to a study recently published in the American Journal of Respiratory and Critical Care Medicine.

Health

Light pollution may cause insomnia in older adults

A new study is the first population-based investigation to report a significant association between artificial, outdoor light exposure at night and insomnia, as indicated by older adults' use of hypnotic drugs.

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Pollution

Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms . Pollution can take the form of chemical substances, or energy, such as noise, heat, or light energy. Pollutants, the elements of pollution, can be foreign substances or energies, or naturally occurring; when naturally occurring, they are considered contaminants when they exceed natural levels. Pollution is often classed as point source or nonpoint source pollution. The Blacksmith Institute issues annually a list of the world's worst polluted places. In the 2007 issues the ten top nominees are located in Azerbaijan, China, India, Peru, Russia, Ukraine and Zambia.

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