Estimation and forecasting of PM10 air pollution in Ankara via time series and harmonic regressions

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buir.contributor.authorYücel, M. Eray
dc.citation.epage3690en_US
dc.citation.issueNumber8en_US
dc.citation.spage3677en_US
dc.citation.volumeNumber17en_US
dc.contributor.authorAkdi, Y.
dc.contributor.authorOkkaoğlu, Y.
dc.contributor.authorGölveren, E.
dc.contributor.authorYücel, M. Eray
dc.date.accessioned2021-02-19T08:14:16Z
dc.date.available2021-02-19T08:14:16Z
dc.date.issued2020
dc.departmentDepartment of Economicsen_US
dc.description.abstractIn this study, monthly particulate matter (PM10) values in Ankara (39.9334° N, 32.8597° E) from January 1993 to December 2017 are examined. The PM10 are those thoracic particles whose aerodynamic diameter is less than 10 μm (micrometers), and it is of critical health importance due to the penetrability to the lower airways. As an alternative to classical unit root tests, a unit root test primarily based on periodograms is introduced owing to its advantages over alternatives. After examining the stationarity of the series through periodogram-based test as well as its standard rivals, periodic components in the series are examined and it is observed that the series has both periodic and seasonal components. These components are modeled, using the inherent dynamics of a time series alone, within a trigonometric harmonic regression setup, eventually yielding the forecast values for 2018 that turns out to be superior to those obtained by means of ARIMA (autoregressive integrated moving average). This is a striking result since the modeling framework requires no assumptions, no parameter estimations except for the variance of the white noise series, no simulations of the power of tests, no adjustments of test statistics with respect to sample size and no preliminary work as to independent variable which is simply time, i.e., the period of forecast.en_US
dc.identifier.doi10.1007/s13762-020-02705-0en_US
dc.identifier.issn1735-1472
dc.identifier.urihttp://hdl.handle.net/11693/75473
dc.language.isoEnglishen_US
dc.publisherSpringeren_US
dc.relation.isversionofhttps://dx.doi.org/10.1007/s13762-020-02705-0en_US
dc.source.titleInternational Journal of Environmental Science and Technologyen_US
dc.subjectTime series analysisen_US
dc.subjectPeriodogramen_US
dc.subjectHarmonic regressionen_US
dc.subjectAir pollutionen_US
dc.subjectPM10 concentrationen_US
dc.subjectForecastingen_US
dc.titleEstimation and forecasting of PM10 air pollution in Ankara via time series and harmonic regressionsen_US
dc.typeArticleen_US

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