Ambient Carbon Monoxide And Its Fate in the Atmosphere

Jaffe, Louis S.

doi:10.1080/00022470.1968.10469168

Cited by 75 publications

(44 citation statements)

References 5 publications

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“…Carbon monoxide is not affected by the light that normally reaches the earth's surface; it reacts indetectably slowly with ozone or oxygen atoms at normal temperatures and is not known to react with N02• In fact, the one major problem in the aero chemistry of CO is determining what becomes of it (33,58). Carbon monoxide is not affected by the light that normally reaches the earth's surface; it reacts indetectably slowly with ozone or oxygen atoms at normal temperatures and is not known to react with N02• In fact, the one major problem in the aero chemistry of CO is determining what becomes of it (33,58).…”

Section: (113 Million Tons/year) Production Of Co By Volcanic Actiomentioning

confidence: 99%

Aerochemistry of Air Pollution

Berry¹,

Lehman²

1971

Annu. Rev. Phys. Chem.

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Section: (113 Million Tons/year) Production Of Co By Volcanic Actiomentioning

confidence: 99%

Aerochemistry of Air Pollution

Berry¹,

Lehman²

1971

Annu. Rev. Phys. Chem.

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“…CO is produced by chemical reactions in the atmosphere between the hydroxyl radical macro-meteorological factors, the depth through which effective mixing occurs and the wind speed through that depth. Mixing depth and wind speed determine the effective rate at which "fresh air" (or at least, less polluted) is transported into the city [19].…”

Section: Introductionmentioning

confidence: 99%

Variations of Carbon Monoxide Concentrations in the Megacity of São Paulo from 2000 to 2015 in Different Time Scales

Rozante

Alvim

et al. 2017

Atmosphere

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Air pollution is an important public health issue. High levels of carbon monoxide in the atmosphere are hazardous to human health. Studies regarding the concentration of this and other gases in the atmosphere allow political actions to manage and reduce the emission of pollutants. In this context, this paper studied the annual, seasonal, weekly and daily variations of carbon monoxide (CO) concentration for the Metropolitan Region of São Paulo (MRSP). We studied three sites in the MRSP, two of them are located in areas under the influence of heavy vehicle traffic (Osasco and Congonhas) and the third one in a city park (Ibirapuera Park). The results showed high influence of gasoline vehicles on CO emission. In the annual scale, CO concentration decreased due to improvements in emission technology, despite the increasing number of vehicles. CO emission showed a seasonal, weekly and diurnal cycle associated to meteorological conditions and emission patterns. The highest values of mean concentration were observed in June/July for Osasco (2.20 ppm), Congonhas (2.04 ppm) and Ibirapuera (1.04 ppm), during the morning, due to weak dispersion of the polluting gases and higher emission from the rush hours.

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“…CO is a non‐reactive pollutant that dissipates relatively quickly, and its ambient concentrations generally follow the spatial and temporal distributions of vehicular traffic. This is true in Quito (CORPAIRE , p. 54) as well as elsewhere (Jaffe , Schmitz , Tiao et al. ).…”

Section: Introductionmentioning

confidence: 67%

“…A number of the RAUTO stations also monitor meteorological variables. Given the varied topography of the city and its surroundings, data on local meteorological conditions are important, because factors such as wind speed have a strong influence on the relationship between vehicle emissions and ambient pollution concentrations (e.g., see Jaffe 1968;Tiao et al 1975;National Research Council 2003, chapter 2). Meteorological data are collected at Belisario, Carapungo and El Camal but not at Centro and Guamani.…”

Section: Air Quality Monitoringmentioning

confidence: 99%

Driving restrictions that work? Quito's Pico y Placa Program

Carrillo

Malik

Yoo

2016

Canadian J of Economics

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Programs to reduce traffic congestion and air pollution by restricting use of motor vehicles on working days have generally not met with success, given existing studies of such programs. We conduct the first study of Quito, Ecuador's four‐year‐old Pico y Placa program and find that it has reduced ambient concentrations of carbon monoxide (CO), a pollutant primarily emitted by vehicles, by 9% to 11% during peak traffic hours. Given that ambient concentrations of CO generally track the spatial and temporal distributions of traffic, these reductions in pollution suggest similar reductions in vehicle flows. We find no significant evidence that traffic has shifted to other times of the day or week, or to other locations.

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Ambient Carbon Monoxide And Its Fate in the Atmosphere

Cited by 75 publications

References 5 publications

Aerochemistry of Air Pollution

Aerochemistry of Air Pollution

Variations of Carbon Monoxide Concentrations in the Megacity of São Paulo from 2000 to 2015 in Different Time Scales

Driving restrictions that work? Quito's Pico y Placa Program

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