50 pages on this wiki. Oxford comma (also known as the serial comma or Harvard comma) is the name given to the optional final comma in a series. In the phrase ham, egg, and chips it's the comma between egg and and. Entirely optional-correct punctuation neither demands nor requires it.0 pages on this wiki. Oxford comma (also known as the serial comma or Harvard comma) is the name given to the optional final comma in a series. In the phrase ham, egg, and chips it's the comma between egg and and. Entirely optional-correct punctuation neither demands nor requires it.
An Ozone Action Day, which can be declared by a local municipality, county or state, is observed at certain times during the summer months, when weather conditions (such as heat, humidity, and air stagnation) run the risk of causing health problems.he ozone layer protects people from the sun's most damaging ultraviolet rays. Because the ozone layer is located high in the atmosphere, people are not directly exposed to it. Ground-level ozone, however, is a health hazard because people breathe it.
Ozone is a toxic air pollutant that is a concern for people's health when levels in outdoor are high. Ozone is the principal component of the mixture of air pollutants known as smog that is produced from the action of sunlight on air contaminants from automobile exhausts and other sources.zone levels are most likely to be elevated after noon through early evening on hot, sunny days. The United States Environmental Protection Agency (US EPA) last revised the National Ambient Air Quality Standard (NAAQS) for ozone in 2008.