SmogRank / Episodes / Spain
Canary Islands, Spain, 25 to 30 January 2024
For 6 days, from 25 to 30 January 2024, 16 cities in Spain had PM2.5 at least twice their usual for the time of year. The worst reading was La Orotava, Canary Islands, Spain: 70.6 µg/m³ on 29 January, about 14× its usual 5.2. Ended 30 January.
Few fires were detected near these cities on those days. Spreads like this usually come from still weather trapping smoke from heating, traffic and industry, or from dust.
Cities reached 16 in 1 country
Days 6 25 to 30 January 2024
Worst day 29 January 16 cities counted
Furthest above usual 14× La Orotava
Day by day
Play 29 January 16 cities at twice their usual or more
Puerto del Rosario Arrecife Arucas Ingenio Vecindario Maspalomas San Isidro Agüimes Telde Candelaria Las Palmas de Gran Canaria Granadilla de Abona San Sebastián de la Gomera Arona Lomo de Arico Santa Cruz de Tenerife Santa Cruz de la Palma La Orotava 22 Jan 23 24 25 26 27 28 29 30 31 1 Feb 2 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
San Sebastián de la… San Sebastián de la Gomera, 22 January: 7.6 µg/m³ San Sebastián de la Gomera, 23 January: 28.5 µg/m³ San Sebastián de la Gomera, 24 January: 22.7 µg/m³ San Sebastián de la Gomera, 25 January: 38.6 µg/m³, 4.3× its usual 9.0 San Sebastián de la Gomera, 26 January: 36.8 µg/m³, 4.6× its usual 8.0 San Sebastián de la Gomera, 27 January: 31.0 µg/m³, 4.1× its usual 7.5 San Sebastián de la Gomera, 28 January: 62.2 µg/m³, 8.3× its usual 7.5 San Sebastián de la Gomera, 29 January: 51.5 µg/m³, 6.9× its usual 7.5 San Sebastián de la Gomera, 30 January: 43.0 µg/m³, 5.7× its usual 7.5 San Sebastián de la Gomera, 31 January: 27.8 µg/m³ San Sebastián de la Gomera, 1 February: no reading San Sebastián de la Gomera, 2 February: 23.9 µg/m³ Maspalomas Maspalomas, 22 January: no reading Maspalomas, 23 January: no reading Maspalomas, 24 January: 28.2 µg/m³ Maspalomas, 25 January: 34.4 µg/m³, 4.0× its usual 8.6 Maspalomas, 26 January: 24.8 µg/m³ Maspalomas, 27 January: 16.8 µg/m³ Maspalomas, 28 January: 19.9 µg/m³ Maspalomas, 29 January: 37.6 µg/m³, 4.9× its usual 7.6 Maspalomas, 30 January: no reading Maspalomas, 31 January: 17.0 µg/m³ Maspalomas, 1 February: 27.2 µg/m³ Maspalomas, 2 February: 21.0 µg/m³ San Isidro San Isidro, 22 January: 11.3 µg/m³ San Isidro, 23 January: 26.0 µg/m³ San Isidro, 24 January: 24.7 µg/m³ San Isidro, 25 January: 29.4 µg/m³, 3.1× its usual 9.4 San Isidro, 26 January: 27.9 µg/m³, 3.0× its usual 9.2 San Isidro, 27 January: 25.1 µg/m³, 3.0× its usual 8.5 San Isidro, 28 January: 25.6 µg/m³, 3.0× its usual 8.6 San Isidro, 29 January: 47.9 µg/m³, 5.2× its usual 9.2 San Isidro, 30 January: 28.9 µg/m³, 3.1× its usual 9.2 San Isidro, 31 January: 19.0 µg/m³ San Isidro, 1 February: 17.0 µg/m³ San Isidro, 2 February: 22.5 µg/m³ La Orotava La Orotava, 22 January: 7.1 µg/m³ La Orotava, 23 January: 19.3 µg/m³ La Orotava, 24 January: 21.3 µg/m³ La Orotava, 25 January: 28.5 µg/m³, 5.3× its usual 5.4 La Orotava, 26 January: 43.5 µg/m³, 8.2× its usual 5.3 La Orotava, 27 January: 35.5 µg/m³, 6.8× its usual 5.2 La Orotava, 28 January: 41.4 µg/m³, 8.0× its usual 5.2 La Orotava, 29 January: 70.6 µg/m³, 14× its usual 5.2 La Orotava, 30 January: 51.8 µg/m³, 10.0× its usual 5.2 La Orotava, 31 January: 26.0 µg/m³ La Orotava, 1 February: 18.1 µg/m³ La Orotava, 2 February: 18.3 µg/m³ Las Palmas de Gran … Las Palmas de Gran Canaria, 22 January: 11.4 µg/m³ Las Palmas de Gran Canaria, 23 January: 34.5 µg/m³ Las Palmas de Gran Canaria, 24 January: 26.2 µg/m³ Las Palmas de Gran Canaria, 25 January: 27.7 µg/m³, 3.3× its usual 8.3 Las Palmas de Gran Canaria, 26 January: 22.3 µg/m³ Las Palmas de Gran Canaria, 27 January: 14.2 µg/m³ Las Palmas de Gran Canaria, 28 January: 25.7 µg/m³, 3.4× its usual 7.6 Las Palmas de Gran Canaria, 29 January: 50.3 µg/m³, 6.5× its usual 7.7 Las Palmas de Gran Canaria, 30 January: 25.1 µg/m³, 3.2× its usual 7.8 Las Palmas de Gran Canaria, 31 January: 16.3 µg/m³ Las Palmas de Gran Canaria, 1 February: 37.1 µg/m³ Las Palmas de Gran Canaria, 2 February: 24.0 µg/m³ Santa Cruz de Tener… Santa Cruz de Tenerife, 22 January: 7.9 µg/m³ Santa Cruz de Tenerife, 23 January: 28.3 µg/m³ Santa Cruz de Tenerife, 24 January: 23.2 µg/m³ Santa Cruz de Tenerife, 25 January: 26.6 µg/m³, 3.7× its usual 7.1 Santa Cruz de Tenerife, 26 January: 31.1 µg/m³, 4.7× its usual 6.6 Santa Cruz de Tenerife, 27 January: 27.1 µg/m³, 4.2× its usual 6.5 Santa Cruz de Tenerife, 28 January: 44.8 µg/m³, 7.0× its usual 6.4 Santa Cruz de Tenerife, 29 January: 59.9 µg/m³, 9.5× its usual 6.3 Santa Cruz de Tenerife, 30 January: 44.8 µg/m³, 7.1× its usual 6.3 Santa Cruz de Tenerife, 31 January: 36.2 µg/m³ Santa Cruz de Tenerife, 1 February: 25.7 µg/m³ Santa Cruz de Tenerife, 2 February: 27.5 µg/m³ Candelaria Candelaria, 22 January: 6.6 µg/m³ Candelaria, 23 January: 21.6 µg/m³ Candelaria, 24 January: 17.3 µg/m³ Candelaria, 25 January: 26.5 µg/m³, 3.4× its usual 7.8 Candelaria, 26 January: 28.9 µg/m³, 3.7× its usual 7.8 Candelaria, 27 January: 22.5 µg/m³ Candelaria, 28 January: 23.1 µg/m³ Candelaria, 29 January: 47.6 µg/m³, 6.2× its usual 7.7 Candelaria, 30 January: 30.3 µg/m³, 3.9× its usual 7.7 Candelaria, 31 January: 21.6 µg/m³ Candelaria, 1 February: 19.8 µg/m³ Candelaria, 2 February: 18.4 µg/m³ Arona Arona, 22 January: 4.6 µg/m³ Arona, 23 January: 20.7 µg/m³ Arona, 24 January: 17.7 µg/m³ Arona, 25 January: 26.3 µg/m³, 4.1× its usual 6.4 Arona, 26 January: 24.3 µg/m³ Arona, 27 January: 21.9 µg/m³ Arona, 28 January: 22.7 µg/m³ Arona, 29 January: 44.1 µg/m³, 8.5× its usual 5.2 Arona, 30 January: 26.8 µg/m³, 5.1× its usual 5.3 Arona, 31 January: 15.6 µg/m³ Arona, 1 February: 15.5 µg/m³ Arona, 2 February: 14.7 µg/m³ Agüimes Agüimes, 22 January: 5.5 µg/m³ Agüimes, 23 January: 26.9 µg/m³ Agüimes, 24 January: 21.4 µg/m³ Agüimes, 25 January: 25.5 µg/m³, 3.8× its usual 6.8 Agüimes, 26 January: 17.9 µg/m³ Agüimes, 27 January: 10.4 µg/m³ Agüimes, 28 January: 12.9 µg/m³ Agüimes, 29 January: 34.3 µg/m³, 5.6× its usual 6.1 Agüimes, 30 January: no reading Agüimes, 31 January: 10.2 µg/m³ Agüimes, 1 February: 27.5 µg/m³ Agüimes, 2 February: 16.6 µg/m³ Vecindario Vecindario, 22 January: 5.5 µg/m³ Vecindario, 23 January: 26.9 µg/m³ Vecindario, 24 January: 21.4 µg/m³ Vecindario, 25 January: 25.5 µg/m³, 3.3× its usual 7.8 Vecindario, 26 January: 17.9 µg/m³ Vecindario, 27 January: 10.4 µg/m³ Vecindario, 28 January: 12.9 µg/m³ Vecindario, 29 January: 34.3 µg/m³, 4.8× its usual 7.2 Vecindario, 30 January: no reading Vecindario, 31 January: 10.2 µg/m³ Vecindario, 1 February: no reading Vecindario, 2 February: 16.6 µg/m³ Granadilla de Abona Granadilla de Abona, 22 January: 7.6 µg/m³ Granadilla de Abona, 23 January: 20.5 µg/m³ Granadilla de Abona, 24 January: 14.1 µg/m³ Granadilla de Abona, 25 January: 25.3 µg/m³, 3.4× its usual 7.4 Granadilla de Abona, 26 January: 27.9 µg/m³, 4.2× its usual 6.7 Granadilla de Abona, 27 January: 31.4 µg/m³, 4.8× its usual 6.5 Granadilla de Abona, 28 January: 39.7 µg/m³, 6.2× its usual 6.4 Granadilla de Abona, 29 January: 47.9 µg/m³, 6.9× its usual 6.9 Granadilla de Abona, 30 January: 31.2 µg/m³, 4.3× its usual 7.3 Granadilla de Abona, 31 January: 17.0 µg/m³ Granadilla de Abona, 1 February: 17.7 µg/m³ Granadilla de Abona, 2 February: 18.2 µg/m³ Santa Cruz de la Pa… Santa Cruz de la Palma, 22 January: 8.2 µg/m³ Santa Cruz de la Palma, 23 January: 18.0 µg/m³ Santa Cruz de la Palma, 24 January: 15.0 µg/m³ Santa Cruz de la Palma, 25 January: 21.9 µg/m³ Santa Cruz de la Palma, 26 January: 36.4 µg/m³, 7.0× its usual 5.2 Santa Cruz de la Palma, 27 January: 31.8 µg/m³, 6.1× its usual 5.2 Santa Cruz de la Palma, 28 January: 62.5 µg/m³, 12× its usual 5.2 Santa Cruz de la Palma, 29 January: 60.5 µg/m³, 12× its usual 5.2 Santa Cruz de la Palma, 30 January: 47.3 µg/m³, 9.1× its usual 5.2 Santa Cruz de la Palma, 31 January: 23.9 µg/m³ Santa Cruz de la Palma, 1 February: 13.6 µg/m³ Santa Cruz de la Palma, 2 February: 23.0 µg/m³ Lomo de Arico Lomo de Arico, 22 January: 5.7 µg/m³ Lomo de Arico, 23 January: 17.6 µg/m³ Lomo de Arico, 24 January: 13.6 µg/m³ Lomo de Arico, 25 January: 23.7 µg/m³ Lomo de Arico, 26 January: 24.8 µg/m³ Lomo de Arico, 27 January: 24.3 µg/m³ Lomo de Arico, 28 January: 31.5 µg/m³, 6.1× its usual 5.2 Lomo de Arico, 29 January: 47.4 µg/m³, 9.1× its usual 5.2 Lomo de Arico, 30 January: 26.1 µg/m³, 4.9× its usual 5.3 Lomo de Arico, 31 January: 14.9 µg/m³ Lomo de Arico, 1 February: no reading Lomo de Arico, 2 February: 16.5 µg/m³ Telde Telde, 22 January: 7.7 µg/m³ Telde, 23 January: 26.6 µg/m³ Telde, 24 January: 19.7 µg/m³ Telde, 25 January: 24.0 µg/m³ Telde, 26 January: 15.9 µg/m³ Telde, 27 January: 11.0 µg/m³ Telde, 28 January: 15.2 µg/m³ Telde, 29 January: 30.3 µg/m³, 5.9× its usual 5.1 Telde, 30 January: 27.8 µg/m³, 5.3× its usual 5.2 Telde, 31 January: 10.9 µg/m³ Telde, 1 February: 25.6 µg/m³ Telde, 2 February: 17.0 µg/m³ Arucas Arucas, 22 January: 7.3 µg/m³ Arucas, 23 January: 25.8 µg/m³ Arucas, 24 January: 19.3 µg/m³ Arucas, 25 January: 22.8 µg/m³ Arucas, 26 January: 16.6 µg/m³ Arucas, 27 January: 16.2 µg/m³ Arucas, 28 January: 19.0 µg/m³ Arucas, 29 January: 29.0 µg/m³, 3.2× its usual 9.1 Arucas, 30 January: 19.3 µg/m³ Arucas, 31 January: 13.8 µg/m³ Arucas, 1 February: 20.8 µg/m³ Arucas, 2 February: 18.5 µg/m³ Ingenio Ingenio, 22 January: 2.0 µg/m³ Ingenio, 23 January: 21.9 µg/m³ Ingenio, 24 January: 17.2 µg/m³ Ingenio, 25 January: 22.7 µg/m³ Ingenio, 26 January: 13.8 µg/m³ Ingenio, 27 January: 10.0 µg/m³ Ingenio, 28 January: 18.1 µg/m³ Ingenio, 29 January: 26.5 µg/m³, 3.7× its usual 7.1 Ingenio, 30 January: no reading Ingenio, 31 January: 7.2 µg/m³ Ingenio, 1 February: 18.8 µg/m³ Ingenio, 2 February: 12.7 µg/m³ 22 Jan 24 26 28 30 1 Feb 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
La Orotava Canary Islands, Spain 6 29 January 5.2 14× Santa Cruz de la Palma Canary Islands, Spain 5 28 January 5.2 12× Santa Cruz de Tenerife Canary Islands, Spain 6 29 January 6.3 9.5× Lomo de Arico Canary Islands, Spain 3 29 January 5.2 9.1× Arona Canary Islands, Spain 3 29 January 5.2 8.5× San Sebastián de la Gomera Canary Islands, Spain 6 28 January 7.5 8.3× Granadilla de Abona Canary Islands, Spain 6 29 January 6.9 6.9× Las Palmas de Gran Canaria Canary Islands, Spain 4 29 January 7.7 6.5× Candelaria Canary Islands, Spain 4 29 January 7.7 6.2× Telde Canary Islands, Spain 2 29 January 5.1 5.9× Agüimes Canary Islands, Spain 2 29 January 6.1 5.6× San Isidro Canary Islands, Spain 6 29 January 9.2 5.2× Maspalomas Canary Islands, Spain 2 29 January 7.6 4.9× Vecindario Canary Islands, Spain 2 29 January 7.2 4.8× Ingenio Canary Islands, Spain 1 29 January 7.1 3.7× Arucas Canary Islands, Spain 1 29 January 9.1 3.2×
Daily means in µg/m³, over the days each city counted in this episode. Highest: its highest of those days. Usual: the city's median for the time of year of that day (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that, with a usual under 5 µg/m³ taken as 5.
Against other episodes in Spain
Number 16 of 41 episodes in Spain since our records began, by cities reached.
Spain, France and Portugal, February 2023 72 Spain, Portugal and Andorra, August 2025 57 Southern Europe, February 2024 53 Spain, France and 2 more countries, December 2023 to January 2024 48 Northern Spain, October 2024 29 Spain, April 2024 25 Spain, Portugal and France, February 2024 20 Canary Islands, Spain, November 2025 18 Canary Islands, Spain, December 2024 18 Canary Islands, Spain, 8 to 9 February 2024 18 Canary Islands, Spain, 16 to 17 December 2023 18 Canary Islands, Spain, 11 to 13 December 2023 18 Canary Islands, Spain, 25 to 30 January 2024 16 Bars: cities reached; colour: the level of the episode's highest daily reading. All 41 .
Use this page SmogRank, Canary Islands, Spain, 25 to 30 January 2024: 16 cities with PM2.5 at twice their usual or more, 25 to 30 January 2024, smogrank.com/episodes/2024-01-25-canary-islands-spain (accessed 5 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. Fire detections from NASA FIRMS; smoke maps from NOAA HMS.
