Statistical trend analysis and forecast modeling of air pollutants
The study provides a statistical trend analysis of different air pollutants using Mann-Kendall and Sen’s slope estimator approach on past pollutants statistics from air quality index station of Varanasi, India. Further, using autoregressive integrated moving average model, future values of air pollu...
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GJESM Publisher
2018-10-01
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| Series: | Global Journal of Environmental Science and Management |
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| Online Access: | http://www.gjesm.net/article_32677_5f963b8fd6d5ed08e88b7f101833d35e.pdf |
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| author | A. Jaiswal C. Samuel V.M. Kadabgaon |
| author_facet | A. Jaiswal C. Samuel V.M. Kadabgaon |
| author_sort | A. Jaiswal |
| collection | DOAJ |
| description | The study provides a statistical trend analysis of different air pollutants using Mann-Kendall and Sen’s slope estimator approach on past pollutants statistics from air quality index station of Varanasi, India. Further, using autoregressive integrated moving average model, future values of air pollutant levels are predicted. Carbon monoxide, nitrogen dioxide<sub>, </sub>sulphur dioxide, particulate matter particles as PM2.5 and PM10 are the pollutants on which the study focuses. Mann-Kendall and Sen’s slope estimator tests are used on summer (February-May), monsoon (June-September) and winter (October-January) seasonal data from year 2013 to 2016 and trend results and power of the slopes are estimated. For predictive analysis, different autoregressive integrated moving average models are compared with goodness of fit statistics, and the observed results stated autoregressive integrated moving average (1,1,1) as the best-suited for forecast modeling of different pollutants in Varanasi. Autoregressive integrated moving average model (1,1,1) is also used on the annual concentration levels to predict forthcoming year's annual pollutants value. Study reveals that PM 10 shows a rising trend with predicted approximate annual concentration of 273 µg/m<sup>3</sup> and PM2.5, carbon monoxide, nitrogen dioxide and<sub> </sub>sulphur dioxide show a reducing trend with approximate annual concentration of 139 µg/m<sup>3</sup>, 1.37 mg/ m<sup>3</sup>, 38 µg/m<sup>3 </sup>and 17 µg/m<sup>3</sup>, respectively, by the year 2030. The study predicted carbon monoxide, nitrogen dioxide andsulphur dioxide concentrations are lower and PM10 and PM2.5 concentrations are much higher to the standard permissible limits in future years also, and specific measures are required to control emissions of these pollutants in Varanasi. |
| format | Article |
| id | doaj-art-c0edf7f546844b84b53e4d1174a31c5f |
| institution | Kabale University |
| issn | 2383-3572 2383-3866 |
| language | English |
| publishDate | 2018-10-01 |
| publisher | GJESM Publisher |
| record_format | Article |
| series | Global Journal of Environmental Science and Management |
| spelling | doaj-art-c0edf7f546844b84b53e4d1174a31c5f2025-02-02T16:50:55ZengGJESM PublisherGlobal Journal of Environmental Science and Management2383-35722383-38662018-10-014442743810.22034/gjesm.2018.04.00432677Statistical trend analysis and forecast modeling of air pollutantsA. Jaiswal0C. Samuel1V.M. Kadabgaon2Department of Mechanical Engineering, Indian Institute of Technology, Varanasi, IndiaDepartment of Mechanical Engineering, Indian Institute of Technology, Varanasi, IndiaDepartment of Mechanical Engineering, Brahmdevdata Mane Institute of Technology, Solapur, IndiaThe study provides a statistical trend analysis of different air pollutants using Mann-Kendall and Sen’s slope estimator approach on past pollutants statistics from air quality index station of Varanasi, India. Further, using autoregressive integrated moving average model, future values of air pollutant levels are predicted. Carbon monoxide, nitrogen dioxide<sub>, </sub>sulphur dioxide, particulate matter particles as PM2.5 and PM10 are the pollutants on which the study focuses. Mann-Kendall and Sen’s slope estimator tests are used on summer (February-May), monsoon (June-September) and winter (October-January) seasonal data from year 2013 to 2016 and trend results and power of the slopes are estimated. For predictive analysis, different autoregressive integrated moving average models are compared with goodness of fit statistics, and the observed results stated autoregressive integrated moving average (1,1,1) as the best-suited for forecast modeling of different pollutants in Varanasi. Autoregressive integrated moving average model (1,1,1) is also used on the annual concentration levels to predict forthcoming year's annual pollutants value. Study reveals that PM 10 shows a rising trend with predicted approximate annual concentration of 273 µg/m<sup>3</sup> and PM2.5, carbon monoxide, nitrogen dioxide and<sub> </sub>sulphur dioxide show a reducing trend with approximate annual concentration of 139 µg/m<sup>3</sup>, 1.37 mg/ m<sup>3</sup>, 38 µg/m<sup>3 </sup>and 17 µg/m<sup>3</sup>, respectively, by the year 2030. The study predicted carbon monoxide, nitrogen dioxide andsulphur dioxide concentrations are lower and PM10 and PM2.5 concentrations are much higher to the standard permissible limits in future years also, and specific measures are required to control emissions of these pollutants in Varanasi.http://www.gjesm.net/article_32677_5f963b8fd6d5ed08e88b7f101833d35e.pdfAir pollutantsAutoregressive integrated moving average (ARIMA)ForecastMann-KendallSen’s slope estimator |
| spellingShingle | A. Jaiswal C. Samuel V.M. Kadabgaon Statistical trend analysis and forecast modeling of air pollutants Global Journal of Environmental Science and Management Air pollutants Autoregressive integrated moving average (ARIMA) Forecast Mann-Kendall Sen’s slope estimator |
| title | Statistical trend analysis and forecast modeling of air pollutants |
| title_full | Statistical trend analysis and forecast modeling of air pollutants |
| title_fullStr | Statistical trend analysis and forecast modeling of air pollutants |
| title_full_unstemmed | Statistical trend analysis and forecast modeling of air pollutants |
| title_short | Statistical trend analysis and forecast modeling of air pollutants |
| title_sort | statistical trend analysis and forecast modeling of air pollutants |
| topic | Air pollutants Autoregressive integrated moving average (ARIMA) Forecast Mann-Kendall Sen’s slope estimator |
| url | http://www.gjesm.net/article_32677_5f963b8fd6d5ed08e88b7f101833d35e.pdf |
| work_keys_str_mv | AT ajaiswal statisticaltrendanalysisandforecastmodelingofairpollutants AT csamuel statisticaltrendanalysisandforecastmodelingofairpollutants AT vmkadabgaon statisticaltrendanalysisandforecastmodelingofairpollutants |