Summer Ozone Concentrations in Southern Ontario in Relation to Photochemical Aspects and Vegetation Damage

Cole, A. F. W.; Katz, Michael

doi:10.1080/00022470.1966.10468463

Cited by 11 publications

(4 citation statements)

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“…This led to the monitoring of surface ozone in the US and the subsequent discovery of photochemical smog in Australia (Galbally, 1971), the UK (Atkins et al, 1972;Derwent and Stewart, 1973), and Japan (Kondo and Akimoto, 1975). In Canada, ozone monitoring started in the early 1970s to investigate the cause of "Tobacco fleck" in southern Ontario (Cole and Katz, 1966).…”

Section: Available Global Surface Ozone Observationsmentioning

confidence: 99%

Tropospheric Ozone Assessment Report: Database and metrics data of global surface ozone observations

Schultz

Schröder²,

Lyapina³

et al. 2017

Elementa: Science of the Anthropocene

218

240

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In support of the first Tropospheric Ozone Assessment Report (TOAR) a relational database of global surface ozone observations has been developed and populated with hourly measurement data and enhanced metadata. A comprehensive suite of ozone data products including standard statistics, health and vegetation impact metrics, and trend information, are made available through a common data portal and a web interface. These data form the basis of the TOAR analyses focusing on human health, vegetation, and climate relevant ozone issues, which are part of this special feature.Cooperation among many data centers and individual researchers worldwide made it possible to build the world's largest collection of in-situ hourly surface ozone data covering the period from 1970 to 2015. By combining the data from almost 10,000 measurement sites around the world with global metadata information, new analyses of surface ozone have become possible, such as the first globally consistent characterisations of measurement sites as either urban or rural/remote. Exploitation of these global metadata allows for new insights into the global distribution, and seasonal and long-term changes of tropospheric ozone and they enable TOAR to perform the first, globally consistent analysis of present-day ozone concentrations and recent ozone changes with relevance to health, agriculture, and climate.Considerable effort was made to harmonize and synthesize data formats and metadata information from various networks and individual data submissions. Extensive quality control was applied to identify questionable and erroneous data, including changes in apparent instrument offsets or calibrations. Such data were excluded from TOAR data products. Limitations of a posteriori data quality assurance are discussed. As a result of the work presented here, global coverage of surface ozone data for scientific analysis has been significantly extended. Yet, large gaps remain in the surface observation network both in Schultz et al: Tropospheric Ozone Assessment Report Art. 58, page 2 of 26 terms of regions without monitoring, and in terms of regions that have monitoring programs but no public access to the data archive. Therefore future improvements to the database will require not only improved data harmonization, but also expanded data sharing and increased monitoring in data-sparse regions.

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Section: Available Global Surface Ozone Observationsmentioning

confidence: 99%

Tropospheric Ozone Assessment Report: Database and metrics data of global surface ozone observations

Schultz

Schröder²,

Lyapina³

et al. 2017

Elementa: Science of the Anthropocene

218

240

View full text Add to dashboard Cite

show abstract

“…The data of Cole and Katz, 14 who measured oxidant in dew and rainwater, supported this suspicion. We attempted to measure oxidant in water collected from the foliage of seedlings, from a polyethylene surface, and from clean glass beakers exposed to ozone, mist, and sunlight in the polyethylene chamber.…”

Section: Factors Affecting Expression Of Acute Ozone Injurymentioning

confidence: 93%

Ozone Injury to Pinus Strobus

Costonis

Sinclair

1969

Journal of the Air Pollution Control Association

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“…The typical diurnal curve shown in Fig. 7 is based on 1961 data taken at Port Burwell, Ontario (Cole and Katz, 1966). At the cathode, a thin layer of hydrogen gas is produced by a polarization current:…”

Section: B Distribution and Variationmentioning

confidence: 99%

Concentration of Ozone in Surface Air over Greater Boston in 1965

Newell¹,

Brandli²,

Widen³

1966

J. Appl. Meteor.

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Surface ozone concentrations were measured in the Greater Boston area from November, 1964 to December, 1965. Ozone was monitored continuosly using a Mast microcoulombmetric sensor. A chromium trioxide filter was fitted to the air inlet of the sensor in order to remove negatively interfering sulphur dioxide. Daily ozone concentrations near the surface varied from somewhat greater than 10 to less than 1 pphm by volume. The highest concentrations occurred in late spring while the lowest concentrations occurred in the winter. Such a seasonal variation would be expected if the ozone had arrived in the troposphere from the lower stratosphere. The concentration of ozone during the spring and early summer showed a much greater variability from day to day than was exhibited during the fall and winter months.

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Summer Ozone Concentrations in Southern Ontario in Relation to Photochemical Aspects and Vegetation Damage

Cited by 11 publications

References 0 publications

Tropospheric Ozone Assessment Report: Database and metrics data of global surface ozone observations

Tropospheric Ozone Assessment Report: Database and metrics data of global surface ozone observations

Ozone Injury to Pinus Strobus

Concentration of Ozone in Surface Air over Greater Boston in 1965

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