SmogRank / Episodes / Spain
Canary Islands, Spain, December 2024
For 2 days, from 17 to 18 December 2024, 15 cities in Spain had PM2.5 at least twice their usual for the time of year. The worst reading was Maspalomas, Canary Islands, Spain: 152.0 µg/m³ on 17 December, about 19× its usual 8.2.
No cause named We have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached 15 in 1 country
Days 2 17 to 18 December 2024
Worst day 17 December 15 cities counted
Furthest above usual 19× Ingenio
Day by day
Play 17 December 15 cities at twice their usual or more
Arucas Arrecife La Orotava Santa Cruz de la Palma Candelaria Santa Cruz de Tenerife Granadilla de Abona San Isidro Puerto del Rosario Las Palmas de Gran Canaria Arona Telde Agüimes Maspalomas Ingenio 14 Dec 15 16 17 18 19 20 21 Every measured city in the area, coloured by its PM2.5 that day; a dark ring marks a city at twice its usual or more. Bars: cities counted each day, coloured by their median level. Choose a day or press play; without JavaScript, the days link to that day's world ranking.
How it spread
Puerto del Rosario Puerto del Rosario, 14 December: 5.8 µg/m³, 0.8× usual Puerto del Rosario, 15 December: 7.7 µg/m³, 1.0× usual Puerto del Rosario, 16 December: 54.4 µg/m³, 7.4× usual Puerto del Rosario, 17 December: 89.6 µg/m³, 12× usual Puerto del Rosario, 18 December: 16.4 µg/m³, 2.2× usual Puerto del Rosario, 19 December: 10.3 µg/m³, 1.4× usual Puerto del Rosario, 20 December: 20.1 µg/m³, 2.7× usual Puerto del Rosario, 21 December: 4.0 µg/m³, 0.5× usual Arrecife Arrecife, 14 December: 2.9 µg/m³, 0.4× usual Arrecife, 15 December: 4.7 µg/m³, 0.7× usual Arrecife, 16 December: 39.7 µg/m³, 5.7× usual Arrecife, 17 December: 46.5 µg/m³, 6.6× usual Arrecife, 18 December: 9.1 µg/m³, 1.3× usual Arrecife, 19 December: 15.7 µg/m³, 2.2× usual Arrecife, 20 December: 15.3 µg/m³, 2.2× usual Arrecife, 21 December: 2.5 µg/m³, 0.4× usual Maspalomas Maspalomas, 14 December: 2.9 µg/m³, 0.4× usual Maspalomas, 15 December: 11.7 µg/m³, 1.4× usual Maspalomas, 16 December: 17.4 µg/m³, 2.1× usual Maspalomas, 17 December: 152.0 µg/m³, 19× usual Maspalomas, 18 December: 58.4 µg/m³, 7.1× usual Maspalomas, 19 December: 14.3 µg/m³, 1.7× usual Maspalomas, 20 December: 23.1 µg/m³, 2.8× usual Maspalomas, 21 December: 8.7 µg/m³, 1.1× usual Agüimes Agüimes, 14 December: 5.0 µg/m³, 0.7× usual Agüimes, 15 December: 13.8 µg/m³, 1.8× usual Agüimes, 16 December: 18.1 µg/m³, 2.4× usual Agüimes, 17 December: 126.0 µg/m³, 17× usual Agüimes, 18 December: 49.0 µg/m³, 6.5× usual Agüimes, 19 December: 14.4 µg/m³, 1.9× usual Agüimes, 20 December: 23.7 µg/m³, 3.2× usual Agüimes, 21 December: 5.6 µg/m³, 0.7× usual Ingenio Ingenio, 14 December: 6.0 µg/m³, 1.0× usual Ingenio, 15 December: 13.7 µg/m³, 2.2× usual Ingenio, 16 December: 20.3 µg/m³, 3.2× usual Ingenio, 17 December: 121.0 µg/m³, 19× usual Ingenio, 18 December: 47.6 µg/m³, 7.6× usual Ingenio, 19 December: 13.2 µg/m³, 2.1× usual Ingenio, 20 December: 22.6 µg/m³, 3.6× usual Ingenio, 21 December: 5.8 µg/m³, 0.9× usual Las Palmas de Gran … Las Palmas de Gran Canaria, 14 December: 4.7 µg/m³, 0.7× usual Las Palmas de Gran Canaria, 15 December: 9.1 µg/m³, 1.3× usual Las Palmas de Gran Canaria, 16 December: 16.5 µg/m³, 2.4× usual Las Palmas de Gran Canaria, 17 December: 89.2 µg/m³, 13× usual Las Palmas de Gran Canaria, 18 December: 35.7 µg/m³, 5.2× usual Las Palmas de Gran Canaria, 19 December: 16.1 µg/m³, 2.3× usual Las Palmas de Gran Canaria, 20 December: 20.0 µg/m³, 2.9× usual Las Palmas de Gran Canaria, 21 December: 5.5 µg/m³, 0.8× usual Santa Cruz de Tener… Santa Cruz de Tenerife, 14 December: 4.4 µg/m³, 0.6× usual Santa Cruz de Tenerife, 15 December: 7.0 µg/m³, 0.9× usual Santa Cruz de Tenerife, 16 December: 10.5 µg/m³, 1.4× usual Santa Cruz de Tenerife, 17 December: 82.2 µg/m³, 11× usual Santa Cruz de Tenerife, 18 December: 52.1 µg/m³, 6.9× usual Santa Cruz de Tenerife, 19 December: 25.4 µg/m³, 3.3× usual Santa Cruz de Tenerife, 20 December: 23.2 µg/m³, 3.1× usual Santa Cruz de Tenerife, 21 December: 5.9 µg/m³, 0.8× usual Telde Telde, 14 December: 3.5 µg/m³, 0.7× usual Telde, 15 December: 8.1 µg/m³, 1.6× usual Telde, 16 December: 12.1 µg/m³, 2.4× usual Telde, 17 December: 80.0 µg/m³, 16× usual Telde, 18 December: 31.2 µg/m³, 6.2× usual Telde, 19 December: 11.0 µg/m³, 2.2× usual Telde, 20 December: 16.0 µg/m³, 3.2× usual Telde, 21 December: 5.9 µg/m³, 1.2× usual San Isidro San Isidro, 14 December: 4.1 µg/m³, 0.6× usual San Isidro, 15 December: 6.2 µg/m³, 0.9× usual San Isidro, 16 December: 13.5 µg/m³, 2.0× usual San Isidro, 17 December: 78.2 µg/m³, 12× usual San Isidro, 18 December: 42.9 µg/m³, 6.4× usual San Isidro, 19 December: 21.3 µg/m³, 3.2× usual San Isidro, 20 December: 16.9 µg/m³, 2.5× usual San Isidro, 21 December: 6.3 µg/m³, 0.9× usual Arona Arona, 14 December: 1.9 µg/m³, 0.4× usual Arona, 15 December: 5.5 µg/m³, 1.1× usual Arona, 16 December: 12.3 µg/m³, 2.5× usual Arona, 17 December: 77.8 µg/m³, 16× usual Arona, 18 December: 43.9 µg/m³, 8.8× usual Arona, 19 December: 15.0 µg/m³, 3.0× usual Arona, 20 December: 12.4 µg/m³, 2.5× usual Arona, 21 December: 5.6 µg/m³, 1.1× usual Candelaria Candelaria, 14 December: 5.3 µg/m³, 0.8× usual Candelaria, 15 December: 11.5 µg/m³, 1.8× usual Candelaria, 16 December: 11.8 µg/m³, 1.8× usual Candelaria, 17 December: 64.2 µg/m³, 9.9× usual Candelaria, 18 December: 32.3 µg/m³, 5.0× usual Candelaria, 19 December: 20.8 µg/m³, 3.2× usual Candelaria, 20 December: 16.3 µg/m³, 2.5× usual Candelaria, 21 December: 7.7 µg/m³, 1.2× usual Granadilla de Abona Granadilla de Abona, 14 December: 4.5 µg/m³, 0.9× usual Granadilla de Abona, 15 December: 7.6 µg/m³, 1.5× usual Granadilla de Abona, 16 December: 9.1 µg/m³, 1.7× usual Granadilla de Abona, 17 December: 59.6 µg/m³, 11× usual Granadilla de Abona, 18 December: 38.1 µg/m³, 7.3× usual Granadilla de Abona, 19 December: 11.9 µg/m³, 2.3× usual Granadilla de Abona, 20 December: 13.3 µg/m³, 2.6× usual Granadilla de Abona, 21 December: 9.1 µg/m³, 1.7× usual Santa Cruz de la Pa… Santa Cruz de la Palma, 14 December: 3.9 µg/m³, 0.7× usual Santa Cruz de la Palma, 15 December: 6.7 µg/m³, 1.1× usual Santa Cruz de la Palma, 16 December: 8.2 µg/m³, 1.4× usual Santa Cruz de la Palma, 17 December: 51.4 µg/m³, 8.7× usual Santa Cruz de la Palma, 18 December: 30.0 µg/m³, 5.1× usual Santa Cruz de la Palma, 19 December: 21.4 µg/m³, 3.6× usual Santa Cruz de la Palma, 20 December: 11.7 µg/m³, 2.0× usual Santa Cruz de la Palma, 21 December: 5.4 µg/m³, 0.9× usual Arucas Arucas, 14 December: 4.0 µg/m³, 0.5× usual Arucas, 15 December: 6.0 µg/m³, 0.7× usual Arucas, 16 December: 7.7 µg/m³, 0.9× usual Arucas, 17 December: 47.2 µg/m³, 5.4× usual Arucas, 18 December: 28.5 µg/m³, 3.2× usual Arucas, 19 December: 7.8 µg/m³, 0.9× usual Arucas, 20 December: 13.3 µg/m³, 1.5× usual Arucas, 21 December: 5.4 µg/m³, 0.6× usual La Orotava La Orotava, 14 December: no reading La Orotava, 15 December: 6.3 µg/m³, 1.2× usual La Orotava, 16 December: 5.8 µg/m³, 1.1× usual La Orotava, 17 December: 25.9 µg/m³, 4.9× usual La Orotava, 18 December: 39.1 µg/m³, 7.4× usual La Orotava, 19 December: 19.9 µg/m³, 3.8× usual La Orotava, 20 December: 13.0 µg/m³, 2.5× usual La Orotava, 21 December: 5.1 µg/m³, 1.0× usual 14 Dec 15 16 17 18 19 20 21 Every counted city, in the order the episode reached them, 3 days before to 3 after. Each square is a day, coloured by that day's PM2.5; outlined: at twice the city's usual or more. Good 0–50
Moderate 51–100
Sensitive groups 101–150
Unhealthy 151–200
Very unhealthy 201–300
Hazardous 301+
Every city it reached
City Days Highest Usual Above usual
Ingenio Canary Islands, Spain 2 17 December 6.3 19× Maspalomas Canary Islands, Spain 2 17 December 8.2 19× Agüimes Canary Islands, Spain 2 17 December 7.5 17× Telde Canary Islands, Spain 2 17 December 4.9 16× Arona Canary Islands, Spain 2 17 December 4.2 16× Las Palmas de Gran Canaria Canary Islands, Spain 2 17 December 6.9 13× Puerto del Rosario Canary Islands, Spain 1 17 December 7.4 12× San Isidro Canary Islands, Spain 2 17 December 6.7 12× Granadilla de Abona Canary Islands, Spain 2 17 December 5.2 11× Santa Cruz de Tenerife Canary Islands, Spain 2 17 December 7.6 11× Candelaria Canary Islands, Spain 2 17 December 6.5 9.9× Santa Cruz de la Palma Canary Islands, Spain 2 17 December 5.9 8.7× La Orotava Canary Islands, Spain 2 18 December 5.3 7.4× Arrecife Canary Islands, Spain 1 17 December 7.0 6.6× Arucas Canary Islands, Spain 2 17 December 8.8 5.4×
Daily means in µg/m³. Usual: the city's median for this time of year (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that.
Against other episodes in Spain
Number 9 of 34 episodes in Spain since our records began, by cities reached.
North-eastern Spain and France, February 2023 72 North-eastern Spain, August 2025 44 North-eastern Spain and France, December 2023 to January 2024 44 South-western Europe, February 2024 37 North-eastern Spain and France, January and February 2024 33 North-eastern Spain, October 2024 23 North-eastern Spain, April 2024 20 Canary Islands, Spain, November 2025 15 Canary Islands, Spain, December 2024 15 Canary Islands, Spain, February 2024 15 Canary Islands, Spain, December 2023 15 Canary Islands, Spain, December 2023 15 Bars: cities reached; colour: the level of the episode's highest daily reading. All 34 .
Use this page SmogRank, Canary Islands, Spain, December 2024: 15 cities with PM2.5 at twice their usual or more, 17 to 18 December 2024, smogrank.com/episodes/2024-12-canary-islands-spain (accessed 3 October 2026).
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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms .
An episode is a run of days when many cities close to each other (four or more within 350 km on a day, 8 or more in all) each had a daily PM2.5 mean of at least 25 µg/m³ and at least 2 times their usual for that time of year. Found in our own measurements, not picked by hand. How we find episodes . Values are each city's daily mean of its own monitors; causes are the usual kinds for a pattern like this, not a confirmed source.
