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...

instance, methane is emitted by the digestion of food by cattle, causing ground-level ozone. Practices like slash-and-burn in forests like the Amazon cause large...

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...

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

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...

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...

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

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

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...

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...

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

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

study of ground-level ozone for the Royal Society, which concluded "that existing emission controls will not be sufficient to reduce ozone concentrations...

1999 Gothenburg Protocol to Abate Acidification, Eutrophication and Ground-level Ozone (known as the Multi-effect Protocol or the Gothenburg Protocol) is...

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

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...

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

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...

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

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...

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

pollutant or class of pollutants." Ground level ozone (O3): Ozone found on the surface-level, also known as tropospheric ozone is also regulated by the NAAQS...

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...

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

that form secondary pollutants such as fine particulate matter and ground level ozone. Downwind effects in airsheds are responsible for the spread of those...

Tropospheric or ground-level ozone (O3) is the ozone present in the lowest portion of the atmosphere (up to 10–15 km above the ground). It is responsible...

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

air pollutants in their exhaust such as NOx, particulate matter and ground-level ozone (indirectly). Additionally, as car tires wear down, they shed the...

Quality Standards (CAAQS) for fine particulate matter (PM2.5) and ground-level ozone. Fuel production causes majority of the air pollution in New Brunswick...