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 ...

Oncology & Cancer

Increased risk for oral cancer with exposure to high PM2.5

(HealthDay)—Taiwanese men exposed to high concentrations of fine particulate matter 2.5 (PM2.5) have an increased risk for oral cancer, according to a study recently published in the Journal of Investigative Medicine.

Immunology

Study shows surprise low-level ozone impact on asthma patients

A new study led by UNC School of Medicine researchers indicates that ozone has a greater impact on asthma patients than previously thought. The study, published in the Journal of Allergy and Clinical Immunology, recruited ...

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Ozone

Ozone or trioxygen (O3) is a triatomic molecule, consisting of three oxygen atoms. It is an allotrope of oxygen that is much less stable than the diatomic O2. Ground-level ozone is an air pollutant with harmful effects on the respiratory systems of animals. The ozone layer in the upper atmosphere filters potentially damaging ultraviolet light from reaching the Earth's surface. It is present in low concentrations throughout the Earth's atmosphere. It has many industrial and consumer applications.

Ozone, the first allotrope of a chemical element to be recognized by science, was proposed as a distinct chemical compound by Christian Friedrich Schönbein in 1840, who named it after the Greek verb ozein (ὄζειν, "to smell"), from the peculiar odor in lightning storms. The formula for ozone, O3, was not determined until 1865 by Jacques-Louis Soret and confirmed by Schönbein in 1867.

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