<b>Evaluation of Organic Gas Adsorption during Collection of </b><b>Atmospheric Ultrafine Particles Using an Inertial Filter Sampler </b>
-
- SAKURAI Kenji
- Graduate School of Science and Engineering, Saitama University
-
- SEKIGUCHI Kazuhiko
- Graduate School of Science and Engineering, Saitama University
-
- WANG Qingyue
- Graduate School of Science and Engineering, Saitama University
-
- FURUUCHI Masami
- Graduate School of Natural Science and Technology, Kanazawa University
-
- HATA Mitsuhiko
- Graduate School of Natural Science and Technology, Kanazawa University
Bibliographic Information
- Other Title
-
- <b>慣性フィルターサンプラーを用いた大気中超微小粒子捕集時にお </b><b>ける有機ガス吸着量の評価 </b>
- 慣性フィルターサンプラーを用いた大気中超微小粒子捕集時における有機ガス吸着量の評価
- カンセイ フィルターサンプラー オ モチイタ タイキ チュウ チョウビショウリュウシホシュウジ ニ オケル ユウキ ガス キュウチャクリョウ ノ ヒョウカ
Search this article
Abstract
An inertial filter (INF) sampler can collect ultrafine particles (UFP) uniformly onto a 47 mmφ quartz filter with a low pressure drop (20–30 kPa) at 40 L/min. However, gas adsorption may influence chemical composition of UFP as a positive artifact during sampling period owing to very low mass concentration of UFP. In this study, we evaluated organic gas adsorption onto the quartz filter settled in the INF sampler during collection of atmospheric UFP in summer and winter to elucidate the influence of seasonal temperature and relative humidity. The filter samples collected by the INF sampler were analyzed for organic carbon (OC), elemental carbon (EC) by a thermal/optical carbon analyzer following the IMPROVE method.<br>As a result, the artifacts of OC ranged from 33.0±11.7% in summer to 27.8±12.0% in winter, a large difference in the OC concentration was not observed between the seasons. The artifacts for each OC fraction showed that OC1 and OC4 were almost not adsorbed onto the filter but OC2 and OC3 were adsorbed about 40%, indicating that high boiling point components were adsorbed onto the filter at the high flow rate condition. From these results, it was thought that the gas adsorption was relatively low for the mass concentration of UFP and the INF sampler can be a useful device for UFP collection.
Journal
-
- Earozoru Kenkyu
-
Earozoru Kenkyu 29 (2), 119-123, 2014
Japan Association of Aerosol Science and Technology
- Tweet
Details 詳細情報について
-
- CRID
- 1390282679320465024
-
- NII Article ID
- 130004837986
-
- NII Book ID
- AN10041511
-
- ISSN
- 1881543X
- 09122834
-
- NDL BIB ID
- 025614101
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- CiNii Articles
- KAKEN
-
- Abstract License Flag
- Disallowed