Impact of the 2021 La Palma volcanic eruption on air quality: Insights from a multidisciplinary approach

被引：25

作者：

Milford, Celia ^{[1
]}

Torres, Carlos ^{[1
]}

Vilches, Jon ^{[2
]}

Gossman, Ann-Kathrin ^{[3
]}

Weis, Frederik ^{[3
]}

Suarez-Molina, David ^{[4
]}

Garcia, Omaira E. ^{[1
]}

Prats, Natalia ^{[1
]}

Barreto, Africa ^{[1
]}

Garcia, Rosa D. ^{[1
,5
]}

Bustos, Juan J. ^{[1
]}

Marrero, Carlos L. ^{[1
]}

Ramos, Ramon ^{[1
]}

Chinea, Nayra ^{[6
]}

Boulesteix, Thomas ^{[7
]}

Taquet, Noemie ^{[7
]}

Rodriguez, Sergio ^{[7
]}

Lopez-Darias, Jessica ^{[7
,8
]}

Sicard, Michael ^{[9
,10
,11
]}

Cordoba-Jabonero, Carmen ^{[12
]}

Cuevas, Emilio ^{[1
]}

机构：

[1] State Meteorol Agcy Spain, Izana Atmospher Res Ctr, AEMET, Tenerife, Spain

[2] Canary Isl Govt, Dept Ecol Transit Fight Climate Change & Terr Pla, Las Palmas Gran Canaria, Spain

[3] Palas GmbH, Karlsruhe, Germany

[4] State Meteorol Agcy Spain, Delegat AEMET Canary Isl, DTCAN, AEMET, Madrid, Spain

[5] TRAGSATEC, Madrid, Spain

[6] Sieltec Canarias, Tenerife, Spain

[7] Inst Nat Prod & Agrobiol IPNA CSIC, Dept Life & Earth Sci, San Cristobal De La Lagu, Spain

[8] La Laguna Univ, Analyt Chem Dept, San Cristobal De La Lagu, Spain

[9] Univ Politecn Cataluna, CommSensLab, Barcelona, Spain

[10] Univ Politecn Catalunya UPC, CTE, IEEC, CRAE, Barcelona, Spain

[11] Univ Reunion, Lab Atmosphere & Cyclones LACy, St Denis, France

[12] Natl Inst Aerosp Technol, INTA, Madrid, Spain

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2023年 / 869卷

关键词：

Volcanic eruption; Air quality; La Palma eruption; SO2; PM10 andPM(2 5); Volcanic and dust aerosol; CANARY-ISLANDS; SULFUR-DIOXIDE; SAHARAN DUST; AFRICAN DUST; MT; ETNA; LAYER; LIDAR; ASH; TRANSPORT; RATIO;

D O I：

10.1016/j.scitotenv.2023.161652

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The La Palma 2021 volcanic eruption was the first subaerial eruption in a 50-year period in the Canary Islands (Spain), emitting-1.8 Tg of sulphur dioxide (SO2) into the troposphere over nearly 3 months (19 September-13 December 2021), exceeding the total anthropogenic SO2 emitted from the 27 European Union countries in 2019. We conducted a comprehensive evaluation of the impact of the 2021 volcanic eruption on air quality (SO2, PM10 and PM2.5 concen-trations) utilising a multidisciplinary approach, combining ground and satellite-based measurements with height -resolved aerosol and meteorological information. High concentrations of SO2, PM10 and PM2.5 were observed in La Palma (hourly mean SO2 up to-2600 mu g m-3 and also sporadically at-140 km distance on the island of Tenerife (> 7700 mu g m-3) in the free troposphere. PM10 and PM2.5 daily mean concentrations in La Palma peaked at-380 and 60 mu g m-3. Volcanic aerosols and desert dust both impacted the lower troposphere in a similar height range (-0-6 km) during the eruption, providing a unique opportunity to study the combined effect of both natural phenom-ena. The impact of the 2021 volcanic eruption on SO2 and PM concentrations was strongly influenced by the magni-tude of the volcanic emissions, the injection height, the vertical stratification of the atmosphere and its seasonal dynamics. Mean daily SO2 concentrations increased during the eruption, from 38 mu g m-3 (Phase I) to 92 mu g m-3 (Phase II), showing an opposite temporal trend to mean daily SO2 emissions, which decreased from 34 kt (Phase I) to 7 kt (Phase II). The results of this study are relevant for emergency preparedness in all international areas at risk of volcanic eruptions; a multidisciplinary approach is key to understand the processes by which volcanic eruptions affect air quality and to mitigate and minimise impacts on the population.

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页数：15

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