The relationships between meteorological parameters and air pollutants in an urban environment
Meteorological parameters play a significant role in affecting ambient air quality of an urban environment. As Dhaka, the capital city of Bangladesh, is one of the air pollution hotspot among the megacities in the world, however the potential meteorological influences on criteria air pollutants for...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
GJESM Publisher
2019-07-01
|
| Series: | Global Journal of Environmental Science and Management |
| Subjects: | |
| Online Access: | https://www.gjesm.net/article_34908_d1e5b96b2bf28ec07434b13e00b661b8.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832557762919268352 |
|---|---|
| author | I. Kayes S.A. Shahriar K. Hasan M. Akhter M.M. Kabir M.A. Salam |
| author_facet | I. Kayes S.A. Shahriar K. Hasan M. Akhter M.M. Kabir M.A. Salam |
| author_sort | I. Kayes |
| collection | DOAJ |
| description | Meteorological parameters play a significant role in affecting ambient air quality of an urban environment. As Dhaka, the capital city of Bangladesh, is one of the air pollution hotspot among the megacities in the world, however the potential meteorological influences on criteria air pollutants for this megacity are remained less studied. The objectives of this research were to examine the relationships between meteorological parameters such as daily mean temperature (<sup>o </sup>C), relative humidity (%) and rainfall (mm) and, the concentration of criteria air pollutants (SO<sub>2</sub>, CO, NOx, O<sub>3</sub>, PM<sub>2.5</sub> and PM<sub>10</sub>) from January, 2013 to December, 2017. This study also focused on the trend analysis of the air pollutants concentration over the period. Spearman correlation was applied to illustrate the relationships between air pollutants concentration and temperature, relative humidity and rainfall. Multiple linear and non-linear regressions were compared to explore potential role of meteorological parameters on air pollutants' concentrations. Trend analysis resulted that concentration of SO<sub>2</sub> is increasing in the air of Dhaka while others are decreasing. Most of the pollutants resulted negative correlation with atmospheric temperature and relative humidity, however, they showed variable response to seasonal variation of meteorological parameters. Regression analysis resulted that both the multiple non-linear and linear model performed similar for predicting concentrations of particulate matters but for gaseous pollutants both model performances were poor. This research is expected to contribute in improving the forecast accuracy of air pollution under variable meteorological parameters considering seasonal fluctuations. |
| format | Article |
| id | doaj-art-3554403e31ca41d4a83c3299eebab5e7 |
| institution | Kabale University |
| issn | 2383-3572 2383-3866 |
| language | English |
| publishDate | 2019-07-01 |
| publisher | GJESM Publisher |
| record_format | Article |
| series | Global Journal of Environmental Science and Management |
| spelling | doaj-art-3554403e31ca41d4a83c3299eebab5e72025-02-03T02:28:20ZengGJESM PublisherGlobal Journal of Environmental Science and Management2383-35722383-38662019-07-015326527810.22034/GJESM.2019.03.0134908The relationships between meteorological parameters and air pollutants in an urban environmentI. Kayes0S.A. Shahriar1K. Hasan2M. Akhter3M.M. Kabir4M.A. Salam5Department of Environmental Science and Disaster Management, Faculty of Science, Noakhali Science and Technology University, Noakhali-3814, BangladeshDepartment of Environmental Science and Disaster Management, Faculty of Science, Noakhali Science and Technology University, Noakhali-3814, BangladeshDepartment of Environmental Science and Disaster Management, Faculty of Science, Noakhali Science and Technology University, Noakhali-3814, BangladeshDepartment of Environmental Science and Disaster Management, Faculty of Science, Noakhali Science and Technology University, Noakhali-3814, BangladeshDepartment of Environmental Science and Disaster Management, Faculty of Science, Noakhali Science and Technology University, Noakhali-3814, BangladeshDepartment of Environmental Science and Disaster Management, Faculty of Science, Noakhali Science and Technology University, Noakhali-3814, BangladeshMeteorological parameters play a significant role in affecting ambient air quality of an urban environment. As Dhaka, the capital city of Bangladesh, is one of the air pollution hotspot among the megacities in the world, however the potential meteorological influences on criteria air pollutants for this megacity are remained less studied. The objectives of this research were to examine the relationships between meteorological parameters such as daily mean temperature (<sup>o </sup>C), relative humidity (%) and rainfall (mm) and, the concentration of criteria air pollutants (SO<sub>2</sub>, CO, NOx, O<sub>3</sub>, PM<sub>2.5</sub> and PM<sub>10</sub>) from January, 2013 to December, 2017. This study also focused on the trend analysis of the air pollutants concentration over the period. Spearman correlation was applied to illustrate the relationships between air pollutants concentration and temperature, relative humidity and rainfall. Multiple linear and non-linear regressions were compared to explore potential role of meteorological parameters on air pollutants' concentrations. Trend analysis resulted that concentration of SO<sub>2</sub> is increasing in the air of Dhaka while others are decreasing. Most of the pollutants resulted negative correlation with atmospheric temperature and relative humidity, however, they showed variable response to seasonal variation of meteorological parameters. Regression analysis resulted that both the multiple non-linear and linear model performed similar for predicting concentrations of particulate matters but for gaseous pollutants both model performances were poor. This research is expected to contribute in improving the forecast accuracy of air pollution under variable meteorological parameters considering seasonal fluctuations.https://www.gjesm.net/article_34908_d1e5b96b2bf28ec07434b13e00b661b8.pdfAir pollutionHumidityPM2.5 and PM10Regression AnalysisTemperature |
| spellingShingle | I. Kayes S.A. Shahriar K. Hasan M. Akhter M.M. Kabir M.A. Salam The relationships between meteorological parameters and air pollutants in an urban environment Global Journal of Environmental Science and Management Air pollution Humidity PM2.5 and PM10 Regression Analysis Temperature |
| title | The relationships between meteorological parameters and air pollutants in an urban environment |
| title_full | The relationships between meteorological parameters and air pollutants in an urban environment |
| title_fullStr | The relationships between meteorological parameters and air pollutants in an urban environment |
| title_full_unstemmed | The relationships between meteorological parameters and air pollutants in an urban environment |
| title_short | The relationships between meteorological parameters and air pollutants in an urban environment |
| title_sort | relationships between meteorological parameters and air pollutants in an urban environment |
| topic | Air pollution Humidity PM2.5 and PM10 Regression Analysis Temperature |
| url | https://www.gjesm.net/article_34908_d1e5b96b2bf28ec07434b13e00b661b8.pdf |
| work_keys_str_mv | AT ikayes therelationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment AT sashahriar therelationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment AT khasan therelationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment AT makhter therelationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment AT mmkabir therelationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment AT masalam therelationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment AT ikayes relationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment AT sashahriar relationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment AT khasan relationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment AT makhter relationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment AT mmkabir relationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment AT masalam relationshipsbetweenmeteorologicalparametersandairpollutantsinanurbanenvironment |