Ground-level ozone (O3), also known as surface-level ozone and tropospheric ozone, is a trace gas in the troposphere (the lowest level of the Earth's atmosphere)...

ozone a potent respiratory hazard and pollutant near ground level, a higher concentration in the ozone layer (from two to eight ppm) is beneficial, preventing...

creation of NO2 is the critical step leading to low level ozone formation, it also increases this ozone in another, somewhat mutually exclusive way, by reducing...

instance, methane is emitted by the digestion of food by cattle, causing ground-level ozone. Agriculture is also a major source of ammonia, which can form fine...

containing Ground level Altitude above ground level, in aviation Ground (disambiguation) Ground-level ozone Ground-level power supply, in rapid transit Level (disambiguation)...

is based on the observed relationship of nitrogen dioxide (NO2), ground-level ozone (O3) and fine particulate matter (PM2.5) with mortality from an analysis...

Houston has excessive ozone levels and is routinely ranked among the most ozone-polluted cities in the United States. Ground-level ozone, or smog, is Houston's...

present at significant levels in Earth's atmosphere and also known as dioxygen or triplet oxygen. Another is the highly reactive ozone (O3). Others are: Atomic...

The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains a high concentration...

paints and paint thinners and other uses. Ozone is beneficial in the upper atmosphere, but at ground level ozone irritates the respiratory system, causing...

Ozone depletion consists of two related events observed since the late 1970s: a lowered total amount of ozone in Earth's upper atmosphere, and a much...

of sunlight. Ground-level ozone is harmful to human health and the environment. Though the same chemical substance, ground-level ozone should not be...

contaminants do not have an associated AQI. Many countries monitor ground-level ozone, particulates, sulfur dioxide, carbon monoxide and nitrogen dioxide...

gives smog its brown coloration and catalyzes production of toxic ground-level ozone (O3). Molecular oxygen (O2) also serves as a photoinitiator in the...

through undamaged skin and lungs. It contributes to the formation of ground-level ozone, which is toxic in low concentrations. Butanone is listed as a Table...

of ozone pollution in urban areas worse. This raises heat-related mortality during heat waves. During heat waves in urban areas, ground level ozone pollution...

The National Ambient Air Quality Standards (NAAQS) govern how much ground-level ozone (O3), carbon monoxide (CO), particulate matter (PM10, PM2.5), lead...

and the ground level ozone created by NO. NO and NO 2 are not greenhouse gases, whereas N 2O is. NO 2 is a precursor to ground-level ozone. In October...

organic compounds (VOC). Studies show they are likely to facilitate ground level ozone formation and increase photo-chemical smog. In aquatic bodies, they...

(VOCs), a group of chemicals that contribute to the formation of ground-level ozone (smog). The combustion of fossil fuels produces greenhouse gases and...

referred to as the ozone season, when ground-level ozone concentrations are highest. In March 2008, EPA again strengthened the 8-hour ozone standard to 0.075...

ammonia, moisture, and other compounds to form the noxious vapors, ground level ozone, and particles that comprise smog. Photochemical smog, often referred...

health in multiple ways, including being involved in the formation of ground level ozone." "Oil and Gas Exploration/Production". Alaska Business. No. Power...

the exterior radiator surface which converts up to 75 percent of ground level ozone in the radiator cooling air into oxygen, while the Interior Air Quality...

air quality through the formation of secondary pollutants such as ground level ozone and secondary organic aerosol. The emissions from solid fuels are...

country where these events already occur. Effects on air quality – Ground level ozone (the main component of smog) can induce chest pain, coughing, throat...

matter, carbon monoxide, sulfur dioxide, nitrogen dioxide, asbestos, ground-level ozone, lead (from aircraft fuel, mining, and industrial processes) The EPA...

pollutants, also called "criteria pollutants": particulates; smog and ground-level ozone; carbon monoxide; sulfur oxides; nitrogen oxides; and lead. The National...

ideal for that purpose. The only pollutant recorded was ground-level ozone, compared to levels of SO2, NO2, and PM10s at a site next to the A1. Historic...

or males. However, there have been studies which suggest that high levels of ozone pollution, often a problem in the summer months, exert an effect on...