Potential Impacts of the Introduction of Low-Sulfur Fuel on PM𝟐.𝟓 Concentrations at Breathing Level in a Subarctic City
The effects of using low-sulfur fuel for oil-heating and oil-burning facilities on the PM2.5 concentrations at breathing level in an Alaska city surrounded by vast areas were examined with the Weather Research and Forecasting model coupled with chemistry packages that was modified for the subarctic....
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2012/427078 |
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| author | Ketsiri Leelasakultum Nicole Mölders Huy N. Q. Tran Georg A. Grell |
| author_facet | Ketsiri Leelasakultum Nicole Mölders Huy N. Q. Tran Georg A. Grell |
| author_sort | Ketsiri Leelasakultum |
| collection | DOAJ |
| description | The effects of using low-sulfur fuel for oil-heating and oil-burning facilities on the PM2.5 concentrations at breathing level in an Alaska city surrounded by vast areas were examined with the Weather Research and Forecasting model coupled with chemistry packages that was modified for the subarctic. Simulations were performed in forecast mode for a cold season using the National Emission Inventory 2008 and alternatively emissions that represent the use of low-sulfur fuel for oil-heating and oil-burning facilities while keeping the emissions of other sources the same as in the reference simulation. The simulations suggest that introducing low-sulfur fuel would decrease the monthly mean 24 h-averaged PM2.5 concentrations over the city’s PM2.5 nonattainment area by 4%, 9%, 8%, 6%, 5%, and 7% in October, November, December, January, February, and March, respectively. The quarterly mean relative response factors for PM2.5 of 0.96 indicate that with a design value of 44.7 μg/m3 introducing low-sulfur fuel would lead to a new design value of 42.9 μg/m3 that still exceeds the US National Ambient Air Quality Standard of 35 μg/m3. The magnitude of the relation between the relative response of sulfate and nitrate changes differs with temperature. The simulations suggest that, in the city, PM2.5 concentrations would decrease stronger on days with low atmospheric boundary layer heights, low hydrometeor mixing ratio, low downward shortwave radiation, and low temperatures. |
| format | Article |
| id | doaj-art-d3033fca51294a4ebafb998c699f3681 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-d3033fca51294a4ebafb998c699f36812025-08-20T03:24:07ZengWileyAdvances in Meteorology1687-93091687-93172012-01-01201210.1155/2012/427078427078Potential Impacts of the Introduction of Low-Sulfur Fuel on PM𝟐.𝟓 Concentrations at Breathing Level in a Subarctic CityKetsiri Leelasakultum0Nicole Mölders1Huy N. Q. Tran2Georg A. Grell3Department of Atmospheric Sciences, College of Natural Science and Mathematics and Geophysical Institute, University of Alaska Fairbanks, 903 Koyukuk Drive, Fairbanks, AK 99775, USADepartment of Atmospheric Sciences, College of Natural Science and Mathematics and Geophysical Institute, University of Alaska Fairbanks, 903 Koyukuk Drive, Fairbanks, AK 99775, USADepartment of Atmospheric Sciences, College of Natural Science and Mathematics and Geophysical Institute, University of Alaska Fairbanks, 903 Koyukuk Drive, Fairbanks, AK 99775, USANOAA/Earth System Research Laboratory, 325 Broadway, Boulder, CO 80305-3337, USAThe effects of using low-sulfur fuel for oil-heating and oil-burning facilities on the PM2.5 concentrations at breathing level in an Alaska city surrounded by vast areas were examined with the Weather Research and Forecasting model coupled with chemistry packages that was modified for the subarctic. Simulations were performed in forecast mode for a cold season using the National Emission Inventory 2008 and alternatively emissions that represent the use of low-sulfur fuel for oil-heating and oil-burning facilities while keeping the emissions of other sources the same as in the reference simulation. The simulations suggest that introducing low-sulfur fuel would decrease the monthly mean 24 h-averaged PM2.5 concentrations over the city’s PM2.5 nonattainment area by 4%, 9%, 8%, 6%, 5%, and 7% in October, November, December, January, February, and March, respectively. The quarterly mean relative response factors for PM2.5 of 0.96 indicate that with a design value of 44.7 μg/m3 introducing low-sulfur fuel would lead to a new design value of 42.9 μg/m3 that still exceeds the US National Ambient Air Quality Standard of 35 μg/m3. The magnitude of the relation between the relative response of sulfate and nitrate changes differs with temperature. The simulations suggest that, in the city, PM2.5 concentrations would decrease stronger on days with low atmospheric boundary layer heights, low hydrometeor mixing ratio, low downward shortwave radiation, and low temperatures.http://dx.doi.org/10.1155/2012/427078 |
| spellingShingle | Ketsiri Leelasakultum Nicole Mölders Huy N. Q. Tran Georg A. Grell Potential Impacts of the Introduction of Low-Sulfur Fuel on PM𝟐.𝟓 Concentrations at Breathing Level in a Subarctic City Advances in Meteorology |
| title | Potential Impacts of the Introduction of Low-Sulfur Fuel on PM𝟐.𝟓 Concentrations at Breathing Level in a Subarctic City |
| title_full | Potential Impacts of the Introduction of Low-Sulfur Fuel on PM𝟐.𝟓 Concentrations at Breathing Level in a Subarctic City |
| title_fullStr | Potential Impacts of the Introduction of Low-Sulfur Fuel on PM𝟐.𝟓 Concentrations at Breathing Level in a Subarctic City |
| title_full_unstemmed | Potential Impacts of the Introduction of Low-Sulfur Fuel on PM𝟐.𝟓 Concentrations at Breathing Level in a Subarctic City |
| title_short | Potential Impacts of the Introduction of Low-Sulfur Fuel on PM𝟐.𝟓 Concentrations at Breathing Level in a Subarctic City |
| title_sort | potential impacts of the introduction of low sulfur fuel on pm𝟐 𝟓 concentrations at breathing level in a subarctic city |
| url | http://dx.doi.org/10.1155/2012/427078 |
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