SmogRank / Episodes / Spain
Canary Islands, Spain, January 2024
For 6 days, from 25 to 30 January 2024, 13 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.
No cause named We have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached 13 in 1 country
Days 6 25 to 30 January 2024
Worst day 29 January 13 cities counted
Furthest above usual 14× La Orotava
Day by day
Play 29 January 13 cities at twice their usual or more
Puerto del Rosario Arrecife Arucas Ingenio Maspalomas Agüimes Telde Candelaria Las Palmas de Gran Canaria San Isidro Granadilla de Abona Arona 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
Las Palmas de Gran … Las Palmas de Gran Canaria, 22 January: 11.4 µg/m³, 1.5× usual Las Palmas de Gran Canaria, 23 January: 34.5 µg/m³, 4.5× usual Las Palmas de Gran Canaria, 24 January: 26.2 µg/m³, 3.4× usual Las Palmas de Gran Canaria, 25 January: 27.7 µg/m³, 3.6× usual Las Palmas de Gran Canaria, 26 January: 22.3 µg/m³, 2.9× usual Las Palmas de Gran Canaria, 27 January: 14.2 µg/m³, 1.8× usual Las Palmas de Gran Canaria, 28 January: 25.7 µg/m³, 3.3× usual Las Palmas de Gran Canaria, 29 January: 50.3 µg/m³, 6.5× usual Las Palmas de Gran Canaria, 30 January: 25.1 µg/m³, 3.3× usual Las Palmas de Gran Canaria, 31 January: 16.3 µg/m³, 2.1× usual Las Palmas de Gran Canaria, 1 February: 37.1 µg/m³, 4.8× usual Las Palmas de Gran Canaria, 2 February: 24.0 µg/m³, 3.1× usual Santa Cruz de Tener… Santa Cruz de Tenerife, 22 January: 7.9 µg/m³, 1.3× usual Santa Cruz de Tenerife, 23 January: 28.3 µg/m³, 4.5× usual Santa Cruz de Tenerife, 24 January: 23.2 µg/m³, 3.7× usual Santa Cruz de Tenerife, 25 January: 26.6 µg/m³, 4.2× usual Santa Cruz de Tenerife, 26 January: 31.1 µg/m³, 4.9× usual Santa Cruz de Tenerife, 27 January: 27.1 µg/m³, 4.3× usual Santa Cruz de Tenerife, 28 January: 44.8 µg/m³, 7.1× usual Santa Cruz de Tenerife, 29 January: 59.9 µg/m³, 9.5× usual Santa Cruz de Tenerife, 30 January: 44.8 µg/m³, 7.1× usual Santa Cruz de Tenerife, 31 January: 36.2 µg/m³, 5.7× usual Santa Cruz de Tenerife, 1 February: 25.7 µg/m³, 4.1× usual Santa Cruz de Tenerife, 2 February: 27.5 µg/m³, 4.4× usual Agüimes Agüimes, 22 January: 5.5 µg/m³, 0.9× usual Agüimes, 23 January: 26.9 µg/m³, 4.4× usual Agüimes, 24 January: 21.4 µg/m³, 3.5× usual Agüimes, 25 January: 25.5 µg/m³, 4.2× usual Agüimes, 26 January: 17.9 µg/m³, 2.9× usual Agüimes, 27 January: 10.4 µg/m³, 1.7× usual Agüimes, 28 January: 12.9 µg/m³, 2.1× usual Agüimes, 29 January: 34.3 µg/m³, 5.6× usual Agüimes, 30 January: no reading Agüimes, 31 January: 10.2 µg/m³, 1.7× usual Agüimes, 1 February: 27.5 µg/m³, 4.5× usual Agüimes, 2 February: 16.6 µg/m³, 2.7× usual Telde Telde, 22 January: 7.7 µg/m³, 1.5× usual Telde, 23 January: 26.6 µg/m³, 5.2× usual Telde, 24 January: 19.7 µg/m³, 3.9× usual Telde, 25 January: 24.0 µg/m³, 4.7× usual Telde, 26 January: 15.9 µg/m³, 3.1× usual Telde, 27 January: 11.0 µg/m³, 2.2× usual Telde, 28 January: 15.2 µg/m³, 3.0× usual Telde, 29 January: 30.3 µg/m³, 5.9× usual Telde, 30 January: 27.8 µg/m³, 5.5× usual Telde, 31 January: 10.9 µg/m³, 2.1× usual Telde, 1 February: 25.6 µg/m³, 5.0× usual Telde, 2 February: 17.0 µg/m³, 3.3× usual Arucas Arucas, 22 January: 7.3 µg/m³, 0.8× usual Arucas, 23 January: 25.8 µg/m³, 2.8× usual Arucas, 24 January: 19.3 µg/m³, 2.1× usual Arucas, 25 January: 22.8 µg/m³, 2.5× usual Arucas, 26 January: 16.6 µg/m³, 1.8× usual Arucas, 27 January: 16.2 µg/m³, 1.8× usual Arucas, 28 January: 19.0 µg/m³, 2.1× usual Arucas, 29 January: 29.0 µg/m³, 3.2× usual Arucas, 30 January: 19.3 µg/m³, 2.1× usual Arucas, 31 January: 13.8 µg/m³, 1.5× usual Arucas, 1 February: 20.8 µg/m³, 2.3× usual Arucas, 2 February: 18.5 µg/m³, 2.0× usual Maspalomas Maspalomas, 22 January: no reading Maspalomas, 23 January: no reading Maspalomas, 24 January: 28.2 µg/m³, 3.7× usual Maspalomas, 25 January: 34.4 µg/m³, 4.5× usual Maspalomas, 26 January: 24.8 µg/m³, 3.3× usual Maspalomas, 27 January: 16.8 µg/m³, 2.2× usual Maspalomas, 28 January: 19.9 µg/m³, 2.6× usual Maspalomas, 29 January: 37.6 µg/m³, 4.9× usual Maspalomas, 30 January: no reading Maspalomas, 31 January: 17.0 µg/m³, 2.2× usual Maspalomas, 1 February: 27.2 µg/m³, 3.6× usual Maspalomas, 2 February: 21.0 µg/m³, 2.8× usual La Orotava La Orotava, 22 January: 7.1 µg/m³, 1.4× usual La Orotava, 23 January: 19.3 µg/m³, 3.7× usual La Orotava, 24 January: 21.3 µg/m³, 4.1× usual La Orotava, 25 January: 28.5 µg/m³, 5.5× usual La Orotava, 26 January: 43.5 µg/m³, 8.4× usual La Orotava, 27 January: 35.5 µg/m³, 6.8× usual La Orotava, 28 January: 41.4 µg/m³, 8.0× usual La Orotava, 29 January: 70.6 µg/m³, 14× usual La Orotava, 30 January: 51.8 µg/m³, 10.0× usual La Orotava, 31 January: 26.0 µg/m³, 5.0× usual La Orotava, 1 February: 18.1 µg/m³, 3.5× usual La Orotava, 2 February: 18.3 µg/m³, 3.5× usual Candelaria Candelaria, 22 January: 6.6 µg/m³, 0.9× usual Candelaria, 23 January: 21.6 µg/m³, 2.8× usual Candelaria, 24 January: 17.3 µg/m³, 2.2× usual Candelaria, 25 January: 26.5 µg/m³, 3.4× usual Candelaria, 26 January: 28.9 µg/m³, 3.8× usual Candelaria, 27 January: 22.5 µg/m³, 2.9× usual Candelaria, 28 January: 23.1 µg/m³, 3.0× usual Candelaria, 29 January: 47.6 µg/m³, 6.2× usual Candelaria, 30 January: 30.3 µg/m³, 3.9× usual Candelaria, 31 January: 21.6 µg/m³, 2.8× usual Candelaria, 1 February: 19.8 µg/m³, 2.6× usual Candelaria, 2 February: 18.4 µg/m³, 2.4× usual Arona Arona, 22 January: 4.6 µg/m³, 0.9× usual Arona, 23 January: 20.7 µg/m³, 4.0× usual Arona, 24 January: 17.7 µg/m³, 3.4× usual Arona, 25 January: 26.3 µg/m³, 5.1× usual Arona, 26 January: 24.3 µg/m³, 4.7× usual Arona, 27 January: 21.9 µg/m³, 4.2× usual Arona, 28 January: 22.7 µg/m³, 4.4× usual Arona, 29 January: 44.1 µg/m³, 8.5× usual Arona, 30 January: 26.8 µg/m³, 5.2× usual Arona, 31 January: 15.6 µg/m³, 3.0× usual Arona, 1 February: 15.5 µg/m³, 3.0× usual Arona, 2 February: 14.7 µg/m³, 2.8× usual San Isidro San Isidro, 22 January: 8.4 µg/m³, 1.2× usual San Isidro, 23 January: 23.1 µg/m³, 3.2× usual San Isidro, 24 January: 20.7 µg/m³, 2.9× usual San Isidro, 25 January: 26.2 µg/m³, 3.6× usual San Isidro, 26 January: 25.9 µg/m³, 3.6× usual San Isidro, 27 January: 23.2 µg/m³, 3.2× usual San Isidro, 28 January: 24.1 µg/m³, 3.3× usual San Isidro, 29 January: 46.5 µg/m³, 6.5× usual San Isidro, 30 January: 25.1 µg/m³, 3.5× usual San Isidro, 31 January: 16.7 µg/m³, 2.3× usual San Isidro, 1 February: 17.0 µg/m³, 2.4× usual San Isidro, 2 February: 19.8 µg/m³, 2.8× usual Santa Cruz de la Pa… Santa Cruz de la Palma, 22 January: 8.2 µg/m³, 1.6× usual Santa Cruz de la Palma, 23 January: 18.0 µg/m³, 3.5× usual Santa Cruz de la Palma, 24 January: 15.0 µg/m³, 2.9× usual Santa Cruz de la Palma, 25 January: 21.9 µg/m³, 4.2× usual Santa Cruz de la Palma, 26 January: 36.4 µg/m³, 7.0× usual Santa Cruz de la Palma, 27 January: 31.8 µg/m³, 6.1× usual Santa Cruz de la Palma, 28 January: 62.5 µg/m³, 12× usual Santa Cruz de la Palma, 29 January: 60.5 µg/m³, 12× usual Santa Cruz de la Palma, 30 January: 47.3 µg/m³, 9.1× usual Santa Cruz de la Palma, 31 January: 23.9 µg/m³, 4.6× usual Santa Cruz de la Palma, 1 February: 13.6 µg/m³, 2.6× usual Santa Cruz de la Palma, 2 February: 23.0 µg/m³, 4.4× usual Granadilla de Abona Granadilla de Abona, 22 January: 7.4 µg/m³, 1.1× usual Granadilla de Abona, 23 January: 18.7 µg/m³, 2.9× usual Granadilla de Abona, 24 January: 10.6 µg/m³, 1.6× usual Granadilla de Abona, 25 January: 24.5 µg/m³, 3.8× usual Granadilla de Abona, 26 January: 27.3 µg/m³, 4.2× usual Granadilla de Abona, 27 January: 31.1 µg/m³, 4.8× usual Granadilla de Abona, 28 January: 40.3 µg/m³, 6.2× usual Granadilla de Abona, 29 January: 49.8 µg/m³, 7.7× usual Granadilla de Abona, 30 January: 31.0 µg/m³, 4.8× usual Granadilla de Abona, 31 January: 16.7 µg/m³, 2.6× usual Granadilla de Abona, 1 February: 17.7 µg/m³, 2.7× usual Granadilla de Abona, 2 February: 17.6 µg/m³, 2.7× usual Ingenio Ingenio, 22 January: 2.0 µg/m³, 0.3× usual Ingenio, 23 January: 21.9 µg/m³, 3.1× usual Ingenio, 24 January: 17.2 µg/m³, 2.4× usual Ingenio, 25 January: 22.7 µg/m³, 3.2× usual Ingenio, 26 January: 13.8 µg/m³, 1.9× usual Ingenio, 27 January: 10.0 µg/m³, 1.4× usual Ingenio, 28 January: 18.1 µg/m³, 2.5× usual Ingenio, 29 January: 26.5 µg/m³, 3.7× usual Ingenio, 30 January: no reading Ingenio, 31 January: 7.2 µg/m³, 1.0× usual Ingenio, 1 February: 18.8 µg/m³, 2.6× usual Ingenio, 2 February: 12.7 µg/m³, 1.8× usual 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× Arona Canary Islands, Spain 3 29 January 5.2 8.5× Granadilla de Abona Canary Islands, Spain 5 29 January 6.5 7.7× Las Palmas de Gran Canaria Canary Islands, Spain 4 29 January 7.7 6.5× San Isidro Canary Islands, Spain 4 29 January 7.2 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× Maspalomas Canary Islands, Spain 2 29 January 7.6 4.9× 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. 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 19 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 Canary Islands, Spain, January 2024 13 Bars: cities reached; colour: the level of the episode's highest daily reading. All 34 .
Use this page SmogRank, Canary Islands, Spain, January 2024: 13 cities with PM2.5 at twice their usual or more, 25 to 30 January 2024, smogrank.com/episodes/2024-01-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.
