Assessing the effectiveness of low-cost air quality monitors for identifying volcanic SO2 and PM downwind from Masaya volcano, Nicaragua

被引：3

作者：

Whitty, Rachel C. W. ^{[1
]}

Pfeffer, Melissa A. ^{[2
]}

Ilyinskaya, Evgenia ^{[1
]}

Roberts, Tjarda J. ^{[3
]}

Schmidt, Anja ^{[4
,5
]}

Barsotti, Sara ^{[2
]}

Strauch, Wilfried ^{[6
]}

Crilley, Leigh R. ^{[7
]}

Pope, Francis D. ^{[8
]}

Bellanger, Harold ^{[9
]}

Mendoza, Elvis ^{[6
]}

Mather, Tamsin A. ^{[10
]}

Liu, Emma J. ^{[11
]}

Peters, Nial ^{[12
]}

Taylor, Isabelle A. ^{[13
]}

Francis, Hilary ^{[14
]}

Leiva, Xochilt Hernandez ^{[18
,19
]}

Lynch, Dave ^{[15
]}

Nobert, Sebastien ^{[9
,16
]}

Baxter, Peter ^{[17
]}

机构：

[1] Univ Leeds, Inst Geophys & Tecton, Sch Earth & Environm, Leeds, England

[2] Iceland Meteorol Off, Reykjavik, Iceland

[3] Univ Orleans, CNRS, UMR7328, Lab Phys & Chim Environm & Espace, Orleans, France

[4] Univ Cambridge, Dept Geog, Cambridge, England

[5] Univ Cambridge, Dept Chem, Cambridge, England

[6] Inst Nicaraguense Estudios Terr INETER, Managua, Nicaragua

[7] York Univ, Dept Chem, Toronto, ON, Canada

[8] Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham, England

[9] Univ Quebec, Dept Geog, Montreal, PQ, Canada

[10] Univ Oxford, Dept Earth Sci, Oxford, England

[11] UCL, Dept Earth Sci, London, England

[12] UCL, Dept Elect & Elect Engn, London, England

[13] Univ Oxford, COMET, Atmospher Ocean & Planetary Phys, Oxford, England

[14] Univ Northumbria, Dept Humanities, Newcastle, England

[15] Univ Leeds, Cultural Inst, Leeds, England

[16] Univ Leeds, Sustainabil Res Inst, Leeds, England

[17] Univ Cambridge, Dept Publ Hlth & Primary Care, Cambridge, England

[18] Univ Amer, Managua, Nicaragua

[19] Univ Cambridge, Fac Educ, Cambridge, England

来源：

VOLCANICA | 2022年 / 5卷 / 01期

关键词：

SO2; PM; Masaya; Volcano; Low-cost; Air-quality; SULFUR-DIOXIDE; HYGROSCOPIC GROWTH; AEROSOL-PARTICLES; KILAUEA-VOLCANO; CALDERA COMPLEX; PERFORMANCE; POLLUTION; SENSORS; HEALTH; PLUME;

D O I：

10.30909/vol.05.01.3359

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Gas and particulate matter (PM) emissions from Masaya volcano, Nicaragua, cause substantial regional volcanic air pollution (VAP). We evaluate the suitability of low-cost SO2 2 and PM sensors for a continuous air-quality network. The network was deployed for six months in five populated areas (4-16 km from crater). The SO2 2 sensors failed and recorded erroneous values on multiple occasions, likely due to corrosion, requiring significant maintenance commitment. The PM sensors were found to be robust but data required correction for humidity. SO2 2 measurements could not be used as stand-alone tools to detect occurrence of VAP episodes (VAPE), but an SO2/PM 2 /PM correlation reliably achieved this at near-field stations, as confirmed by meteorological forecasts and satellite imagery. Above- background PM concentrations reliably identified VAPE at both near-field and far-field stations. We suggest that a continuous network can be built from a combination of low-cost PM and SO2 2 sensors with a greater number of PM-only sensors.

引用

页码：33 / 59

页数：27

共 18 条

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