O3

(redirected from Tropospheric ozone)
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AcronymDefinition
O3Ozone
O3Out of Office (various organizations)
O3Out Of Order
O3Tropospheric Ozone
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References in periodicals archive ?
Pitts, "Atmospheric chemistry of tropospheric ozone formation: scientific and regulatory implications," Air and Waste, vol.
Tropospheric ozone changes, radiative forcing and attribution to emissions in the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP).
Numerous studies indicate that exposure to an elevated concentration of tropospheric ozone is a potential human health hazard [1],[2],[3] and affects vegetation adversely.
Increased tropospheric ozone concentrations are currently a matter of great concern since background ozone concentrations have more than doubled during the last decades (STAEHELIN et al., 1994).
In spite of progress since the adoption of the first EU laws on air pollution and air quality in the 1980s, around 90% of European city dwellers are still exposed to high levels of pollution from particulate matter and tropospheric ozone. These levels are well above those recommended by the World Health Organisation (WHO), notes the European Environment Agency (EEA) in a report published on 15 October(1).
Such radicals may contribute to a variety of atmospheric processes, such as the formation of tropospheric ozone or NOx.
Third, while C[O.sub.2] is at the heart of any long-term strategy to abate climate change, the mitigation of short-lived climate forcers such as black carbon, methane, and tropospheric ozone could bring substantial short-term climate benefits.
The tropospheric ozone ([O.sub.3]) concentration has increased considerably since preindustrial times (Runeckles and Krupa 1994).
According to the company, the EPA based its decision on the propellant's low photochemical reactivity and negligible contribution to the generation of tropospheric ozone. The classification will help aerosol formulators develop products that meet federal VOC regulations, adding another key environmental benefit to the product's very low global warming potential.
They found that the models underestimated the observed expansion by a factor of about a third but when they included either black carbon aerosols (produced by the combustion of biomass and fossil fuels) or tropospheric ozone (produced when sunlight reacts with volatile organic compounds) or both in the simulations, they mimicked observations better, suggesting that the pollutants were playing a role in the Northern Hemisphere tropical expansion.