Optical Method for Measuring Deposition Amount of Black Carbon Particles on Foliar Surface
To perform quick measurements of black carbon (BC) particles deposited on foliar surfaces of forest tree species, we investigated an optical method for measuring the amount of BC extracted from foliar surfaces and collected on quartz fiber filters. The seedlings of Fagus crenata, Castanopsis siebold...
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| Format: | Article |
| Language: | English |
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Springer
2012-12-01
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| Series: | Asian Journal of Atmospheric Environment |
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| Online Access: | http://asianjae.org/_common/do.php?a=full&b=11&bidx=1576&aidx=19876 |
| _version_ | 1797720568445796352 |
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| author | Masahiro Yamaguchi Kenta Takeda Yoko Otani Naoto Murao Hiroyuki Sase I. Wuled Lenggoro Kenichi Yazaki Kyotaro Noguchi Atsushi Ishida Takeshi Izuta |
| author_facet | Masahiro Yamaguchi Kenta Takeda Yoko Otani Naoto Murao Hiroyuki Sase I. Wuled Lenggoro Kenichi Yazaki Kyotaro Noguchi Atsushi Ishida Takeshi Izuta |
| author_sort | Masahiro Yamaguchi |
| collection | DOAJ |
| description | To perform quick measurements of black carbon (BC) particles deposited on foliar surfaces of forest tree species, we investigated an optical method for measuring the amount of BC extracted from foliar surfaces and collected on quartz fiber filters. The seedlings of Fagus crenata, Castanopsis sieboldii, Larix kaempferi and Cryptomeria japonica were exposed to submicron BC particles for one growing season (1 June to 7 December 2009). At the end of the growing season, the leaves or needles of the seedlings were harvested and washed with deionized water followed by washing with chloroform to extract the BC particles deposited on the foliar surfaces. The extracted BC particles were collected on a quartz fiber filter. The absorption spectrum of the filters was measured by spectrophotometer with an integrating sphere. To obtain the relationship between the absorbance of the filter and the amount of BC particles on the filter, the amount of BC particles on the filter was determined as that of elemental carbon (EC) measured by a thermal optical method. At wavelengths below 450 nm, the absorption spectrum of the filter showed absorption by biological substances, such as epicuticular wax, resulting in the low coefficient of determination (R2) in the relationship between the amount of EC on the filter (MEC, μg C cm-2 filter area) and the absorbance of the filter. The intercept of the regression line between MEC and the absorbance of the filter at 580 nm (A580) was closest to 0. There was a significant linear relationship between the A580 and MEC (R2 =0.917, p<0.001), suggesting that the amount of BC particles collected on the filter can be predicted from the absorbance. This optical method might serve as a simple, fast and cost-effective technique for measuring the amount of BC on foliar surfaces. |
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| institution | Directory Open Access Journal |
| issn | 1976-6912 2287-1160 |
| language | English |
| last_indexed | 2024-03-12T09:21:25Z |
| publishDate | 2012-12-01 |
| publisher | Springer |
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| series | Asian Journal of Atmospheric Environment |
| spelling | doaj.art-99533bcdb4e74e1ca5750e7a5aa809442023-09-02T14:29:31ZengSpringerAsian Journal of Atmospheric Environment1976-69122287-11602012-12-016426827410.5572/ajae.2012.6.4.268Optical Method for Measuring Deposition Amount of Black Carbon Particles on Foliar SurfaceMasahiro Yamaguchi 0Kenta Takeda1Yoko Otani2Naoto Murao3Hiroyuki Sase4I. Wuled Lenggoro5Kenichi Yazaki6Kyotaro Noguchi7Atsushi Ishida8Takeshi Izuta9Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, JapanGraduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, JapanGraduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, JapanGraduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, JapanAsia Center for Air Pollution Research, 1182 Sowa Nishi-ku, Niigata-shi, Niigata 950-2144, JapanInstitute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, JapanForestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki 305-8687, JapanShikoku Research Center, Forestry and Forest Products Research Institute, Kochi, Kochi 780-8077, JapanCenter for Ecological Research, Kyoto University, 509-3, 2-chome, Hirano, Otsu, Shiga 520-2113, JapanInstitute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, JapanTo perform quick measurements of black carbon (BC) particles deposited on foliar surfaces of forest tree species, we investigated an optical method for measuring the amount of BC extracted from foliar surfaces and collected on quartz fiber filters. The seedlings of Fagus crenata, Castanopsis sieboldii, Larix kaempferi and Cryptomeria japonica were exposed to submicron BC particles for one growing season (1 June to 7 December 2009). At the end of the growing season, the leaves or needles of the seedlings were harvested and washed with deionized water followed by washing with chloroform to extract the BC particles deposited on the foliar surfaces. The extracted BC particles were collected on a quartz fiber filter. The absorption spectrum of the filters was measured by spectrophotometer with an integrating sphere. To obtain the relationship between the absorbance of the filter and the amount of BC particles on the filter, the amount of BC particles on the filter was determined as that of elemental carbon (EC) measured by a thermal optical method. At wavelengths below 450 nm, the absorption spectrum of the filter showed absorption by biological substances, such as epicuticular wax, resulting in the low coefficient of determination (R2) in the relationship between the amount of EC on the filter (MEC, μg C cm-2 filter area) and the absorbance of the filter. The intercept of the regression line between MEC and the absorbance of the filter at 580 nm (A580) was closest to 0. There was a significant linear relationship between the A580 and MEC (R2 =0.917, p<0.001), suggesting that the amount of BC particles collected on the filter can be predicted from the absorbance. This optical method might serve as a simple, fast and cost-effective technique for measuring the amount of BC on foliar surfaces.http://asianjae.org/_common/do.php?a=full&b=11&bidx=1576&aidx=19876black carbon particlesintegrating sphere spectrophotometerthermal optical methodforest tree speciesfoliar surface |
| spellingShingle | Masahiro Yamaguchi Kenta Takeda Yoko Otani Naoto Murao Hiroyuki Sase I. Wuled Lenggoro Kenichi Yazaki Kyotaro Noguchi Atsushi Ishida Takeshi Izuta Optical Method for Measuring Deposition Amount of Black Carbon Particles on Foliar Surface Asian Journal of Atmospheric Environment black carbon particles integrating sphere spectrophotometer thermal optical method forest tree species foliar surface |
| title | Optical Method for Measuring Deposition Amount of Black Carbon Particles on Foliar Surface |
| title_full | Optical Method for Measuring Deposition Amount of Black Carbon Particles on Foliar Surface |
| title_fullStr | Optical Method for Measuring Deposition Amount of Black Carbon Particles on Foliar Surface |
| title_full_unstemmed | Optical Method for Measuring Deposition Amount of Black Carbon Particles on Foliar Surface |
| title_short | Optical Method for Measuring Deposition Amount of Black Carbon Particles on Foliar Surface |
| title_sort | optical method for measuring deposition amount of black carbon particles on foliar surface |
| topic | black carbon particles integrating sphere spectrophotometer thermal optical method forest tree species foliar surface |
| url | http://asianjae.org/_common/do.php?a=full&b=11&bidx=1576&aidx=19876 |
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