Characterization of hourly-collected airborne particulate matters from an automated sampling unit of the atmospheric environmental regional observation system by in-air micro-PIXE analysis

被引：4

作者：

Usui, Koki ^{[1
]}

Kikuchi, Ryota ^{[1
]}

Nakatsu, Sota ^{[1
]}

Imayoshi, Takahiro ^{[1
]}

Kumagai, Kimiyo ^{[2
]}

Tago, Hiroshi ^{[2
]}

Satoh, Takahiro ^{[3
]}

Ishii, Yasuyuki ^{[3
]}

Kada, Wataru ^{[1
]}

机构：

[1] Gunma Univ, Fac Sci & Technol, 1-5-1 Tenjin Cho, Kiryu, Gunma 3768515, Japan

[2] Gunma Prefectural Inst Publ Hlth & Environm Sci, 378 Kamioki, Maebashi, Gunma 3710052, Japan

[3] Natl Inst Quantum & Radiol Sci & Technol QST, Takasaki Adv Radiat Res Inst TARRI, Quantum Beam Sci Res Directorate, 1233 Watanuki, Takasaki, Gunma 3701292, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2023年 / 544卷

关键词：

Micro-PIXE; Particulate matters(PM); AEROS; Outliers; Elemental agglomerations; SOURCE APPORTIONMENT; RISK-ASSESSMENT; AEROSOLS; INSIGHTS; JAPANESE; IMPACT; CITIES; PM2.5; KOREA;

D O I：

10.1016/j.nimb.2023.165106

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We investigated element composition ratios in two sets of sequentially collected airborne particulate matter (PM) samples obtained through the automatic sampler of the Atmospheric Environmental Regional Observation System (AEROS). A series of micro-PIXE analyses and imaging were performed on a PTFE (Polytetrafluoroethylene) membrane tape filter corresponding to two hourly time slots through a high-concentration air pollution event from 26th to 27th March 2020 sampled at Ota, Japan (36.290 degrees N, 139.381 degrees E) by utilizing an external 3 MeV proton microprobe. Latent variables of sequentially collected PM samples were analyzed by the non-linear least square method and classified by those clustering driven by house-made data analysis software. Micro-PIXE imaging effectively confirmed the presence of large elemental agglomerations on the PTFE membrane tape filter of AEROS that often appeared as outliners in data analysis.

引用

页数：7

共 1 条

[1] In-air micro-particle-induced X-ray emission imaging and spectroscopy of air-borne particles collected hourly from an automated sampling unit of the atmospheric environmental regional observation system
Kada, W.
Nakatsu, S.
Imayoshi, T.
Kumagai, K.
Tago, H.
Satoh, T.
Koka, M.
Miura, K.
Hanaizumi, O.
Kamiya, T.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2020, 477 (477): : 133 - 137

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