SmogRank / Episodes / Chile

Southern Chile, 11 to 14 July 2024

For 4 days, from 11 to 14 July 2024, 24 cities in Chile had PM2.5 at least twice their usual for the time of year. The worst reading was Cauquenes, Maule Region, Chile: 255.0 µg/m³ on 11 July, about 6.5× its usual 39.5.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached24in 1 country
Days411 to 14 July 2024
Worst day14 July17 cities counted
Furthest above usual6.5×Cauquenes

Day by day

14 July 17 cities at twice their usual or more
San CarlosHualquiToméConcepciónSan Pedro de la PazCoronelTalcaPuente AltoConcónPuerto VarasQuinteroOsornoLotaQuillotaQuilpuéSantiagoVillarricaViña del MarChiguayanteTalaganteValdiviaRengoNacimientoLa UniónHualpénTemucoCuranilahueCuricóLos ÁngelesChillánRancaguaTalcahuanoPuerto MonttCauquenes
8 Jul91011121314151617
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

CauquenesCauquenes, 8 July: 50.5 µg/m³Cauquenes, 9 July: 56.1 µg/m³Cauquenes, 10 July: 120.0 µg/m³Cauquenes, 11 July: 255.0 µg/m³, 6.5× its usual 39.5Cauquenes, 12 July: 50.5 µg/m³Cauquenes, 13 July: 77.6 µg/m³, 2.0× its usual 38.1Cauquenes, 14 July: 54.4 µg/m³Cauquenes, 15 July: 40.8 µg/m³Cauquenes, 16 July: 46.9 µg/m³Cauquenes, 17 July: no readingHualpénHualpén, 8 July: 98.6 µg/m³Hualpén, 9 July: 152.0 µg/m³Hualpén, 10 July: no readingHualpén, 11 July: 171.0 µg/m³, 2.7× its usual 62.7Hualpén, 12 July: 133.0 µg/m³, 2.2× its usual 61.4Hualpén, 13 July: 69.0 µg/m³Hualpén, 14 July: 105.0 µg/m³Hualpén, 15 July: 80.2 µg/m³Hualpén, 16 July: 111.0 µg/m³Hualpén, 17 July: 48.7 µg/m³TalcahuanoTalcahuano, 8 July: 52.5 µg/m³Talcahuano, 9 July: 101.1 µg/m³Talcahuano, 10 July: 161.5 µg/m³Talcahuano, 11 July: 151.5 µg/m³, 4.0× its usual 38.3Talcahuano, 12 July: 103.0 µg/m³, 2.8× its usual 36.7Talcahuano, 13 July: 46.6 µg/m³Talcahuano, 14 July: 66.3 µg/m³Talcahuano, 15 July: 60.6 µg/m³Talcahuano, 16 July: 88.0 µg/m³Talcahuano, 17 July: 36.1 µg/m³ChiguayanteChiguayante, 8 July: 50.7 µg/m³Chiguayante, 9 July: 98.5 µg/m³Chiguayante, 10 July: 71.0 µg/m³Chiguayante, 11 July: 64.1 µg/m³, 2.2× its usual 29.6Chiguayante, 12 July: 54.1 µg/m³Chiguayante, 13 July: 64.5 µg/m³, 2.2× its usual 29.2Chiguayante, 14 July: 57.4 µg/m³Chiguayante, 15 July: 37.2 µg/m³Chiguayante, 16 July: 47.9 µg/m³Chiguayante, 17 July: 42.5 µg/m³NacimientoNacimiento, 8 July: 74.2 µg/m³Nacimiento, 9 July: 61.9 µg/m³Nacimiento, 10 July: 114.1 µg/m³Nacimiento, 11 July: 70.9 µg/m³Nacimiento, 12 July: 160.7 µg/m³, 2.3× its usual 69.7Nacimiento, 13 July: 130.0 µg/m³Nacimiento, 14 July: 78.5 µg/m³Nacimiento, 15 July: no readingNacimiento, 16 July: 93.9 µg/m³Nacimiento, 17 July: 110.9 µg/m³CuranilahueCuranilahue, 8 July: 29.5 µg/m³Curanilahue, 9 July: no readingCuranilahue, 10 July: 51.1 µg/m³Curanilahue, 11 July: 54.8 µg/m³Curanilahue, 12 July: 129.0 µg/m³, 2.8× its usual 46.9Curanilahue, 13 July: 86.5 µg/m³Curanilahue, 14 July: 94.3 µg/m³, 2.1× its usual 44.3Curanilahue, 15 July: 56.3 µg/m³Curanilahue, 16 July: 98.2 µg/m³Curanilahue, 17 July: 54.3 µg/m³TemucoTemuco, 8 July: 94.7 µg/m³Temuco, 9 July: 70.0 µg/m³Temuco, 10 July: 91.3 µg/m³Temuco, 11 July: 89.5 µg/m³Temuco, 12 July: 127.0 µg/m³, 2.8× its usual 45.2Temuco, 13 July: 92.4 µg/m³, 2.1× its usual 44.6Temuco, 14 July: 120.0 µg/m³, 2.6× its usual 45.6Temuco, 15 July: 95.5 µg/m³Temuco, 16 July: 69.2 µg/m³Temuco, 17 July: 46.7 µg/m³LotaLota, 8 July: 24.7 µg/m³Lota, 9 July: 27.1 µg/m³Lota, 10 July: 36.5 µg/m³Lota, 11 July: 31.9 µg/m³Lota, 12 July: 40.5 µg/m³, 2.1× its usual 19.0Lota, 13 July: 31.5 µg/m³Lota, 14 July: 21.5 µg/m³Lota, 15 July: 28.0 µg/m³Lota, 16 July: 39.3 µg/m³Lota, 17 July: 32.2 µg/m³CuricóCuricó, 8 July: 99.0 µg/m³Curicó, 9 July: 70.1 µg/m³Curicó, 10 July: 77.3 µg/m³Curicó, 11 July: 53.4 µg/m³Curicó, 12 July: no readingCuricó, 13 July: 150.0 µg/m³, 3.0× its usual 49.5Curicó, 14 July: 125.0 µg/m³, 2.6× its usual 49.0Curicó, 15 July: 43.1 µg/m³Curicó, 16 July: 53.0 µg/m³Curicó, 17 July: 93.3 µg/m³ChillánChillán, 8 July: 38.1 µg/m³Chillán, 9 July: 39.3 µg/m³Chillán, 10 July: 40.7 µg/m³Chillán, 11 July: 53.8 µg/m³Chillán, 12 July: 78.4 µg/m³Chillán, 13 July: 129.7 µg/m³, 3.2× its usual 40.0Chillán, 14 July: 80.0 µg/m³Chillán, 15 July: 45.5 µg/m³Chillán, 16 July: 57.5 µg/m³Chillán, 17 July: 97.1 µg/m³RancaguaRancagua, 8 July: 72.7 µg/m³Rancagua, 9 July: 106.7 µg/m³Rancagua, 10 July: 78.0 µg/m³Rancagua, 11 July: 86.8 µg/m³Rancagua, 12 July: 127.0 µg/m³Rancagua, 13 July: 127.0 µg/m³, 2.4× its usual 52.1Rancagua, 14 July: 204.0 µg/m³, 3.9× its usual 52.5Rancagua, 15 July: 116.0 µg/m³Rancagua, 16 July: 92.8 µg/m³Rancagua, 17 July: 86.0 µg/m³Los ÁngelesLos Ángeles, 8 July: 25.7 µg/m³Los Ángeles, 9 July: 29.0 µg/m³Los Ángeles, 10 July: 63.9 µg/m³Los Ángeles, 11 July: 40.8 µg/m³Los Ángeles, 12 July: 46.5 µg/m³Los Ángeles, 13 July: 95.4 µg/m³, 2.7× its usual 35.8Los Ángeles, 14 July: 112.7 µg/m³, 3.1× its usual 35.8Los Ángeles, 15 July: 61.6 µg/m³Los Ángeles, 16 July: 61.7 µg/m³Los Ángeles, 17 July: 56.5 µg/m³La UniónLa Unión, 8 July: no readingLa Unión, 9 July: no readingLa Unión, 10 July: 38.6 µg/m³La Unión, 11 July: 44.0 µg/m³La Unión, 12 July: no readingLa Unión, 13 July: 91.7 µg/m³, 2.1× its usual 42.8La Unión, 14 July: 109.0 µg/m³, 2.6× its usual 42.3La Unión, 15 July: 45.5 µg/m³La Unión, 16 July: 49.1 µg/m³La Unión, 17 July: 61.6 µg/m³ValdiviaValdivia, 8 July: 31.8 µg/m³Valdivia, 9 July: 36.0 µg/m³Valdivia, 10 July: 53.3 µg/m³Valdivia, 11 July: no readingValdivia, 12 July: no readingValdivia, 13 July: 87.5 µg/m³, 2.1× its usual 40.9Valdivia, 14 July: 95.0 µg/m³, 2.3× its usual 41.0Valdivia, 15 July: 50.8 µg/m³Valdivia, 16 July: 76.0 µg/m³Valdivia, 17 July: 68.2 µg/m³QuilpuéQuilpué, 8 July: 50.2 µg/m³Quilpué, 9 July: 56.0 µg/m³Quilpué, 10 July: 27.0 µg/m³Quilpué, 11 July: 33.8 µg/m³Quilpué, 12 July: 58.4 µg/m³Quilpué, 13 July: 74.0 µg/m³, 2.1× its usual 35.9Quilpué, 14 July: 75.8 µg/m³, 2.1× its usual 36.0Quilpué, 15 July: 60.8 µg/m³Quilpué, 16 July: 72.3 µg/m³Quilpué, 17 July: 61.6 µg/m³Puerto MonttPuerto Montt, 8 July: 54.9 µg/m³Puerto Montt, 9 July: 78.0 µg/m³Puerto Montt, 10 July: 41.0 µg/m³Puerto Montt, 11 July: 34.6 µg/m³Puerto Montt, 12 July: 43.8 µg/m³Puerto Montt, 13 July: 54.3 µg/m³Puerto Montt, 14 July: 162.5 µg/m³, 4.4× its usual 37.3Puerto Montt, 15 July: 52.5 µg/m³Puerto Montt, 16 July: 46.3 µg/m³Puerto Montt, 17 July: 51.1 µg/m³VillarricaVillarrica, 8 July: 31.9 µg/m³Villarrica, 9 July: 32.5 µg/m³Villarrica, 10 July: 49.7 µg/m³Villarrica, 11 July: 95.0 µg/m³Villarrica, 12 July: 53.2 µg/m³Villarrica, 13 July: 68.9 µg/m³Villarrica, 14 July: 127.0 µg/m³, 2.1× its usual 60.3Villarrica, 15 July: 127.0 µg/m³Villarrica, 16 July: 111.0 µg/m³Villarrica, 17 July: 72.2 µg/m³RengoRengo, 8 July: 67.0 µg/m³Rengo, 9 July: 70.0 µg/m³Rengo, 10 July: 73.3 µg/m³Rengo, 11 July: 83.4 µg/m³Rengo, 12 July: no readingRengo, 13 July: 106.0 µg/m³Rengo, 14 July: 125.0 µg/m³, 2.3× its usual 54.7Rengo, 15 July: 82.5 µg/m³Rengo, 16 July: 87.9 µg/m³Rengo, 17 July: 87.5 µg/m³OsornoOsorno, 8 July: 49.8 µg/m³Osorno, 9 July: 27.6 µg/m³Osorno, 10 July: 29.6 µg/m³Osorno, 11 July: 41.3 µg/m³Osorno, 12 July: 39.7 µg/m³Osorno, 13 July: 71.2 µg/m³Osorno, 14 July: 117.5 µg/m³, 2.0× its usual 58.0Osorno, 15 July: 64.4 µg/m³Osorno, 16 July: 94.8 µg/m³Osorno, 17 July: 108.0 µg/m³TalaganteTalagante, 8 July: 75.2 µg/m³Talagante, 9 July: no readingTalagante, 10 July: 36.6 µg/m³Talagante, 11 July: 66.3 µg/m³Talagante, 12 July: 78.8 µg/m³Talagante, 13 July: 70.8 µg/m³Talagante, 14 July: 107.0 µg/m³, 2.2× its usual 49.3Talagante, 15 July: 79.3 µg/m³Talagante, 16 July: 89.2 µg/m³Talagante, 17 July: 78.3 µg/m³SantiagoSantiago, 8 July: 71.4 µg/m³Santiago, 9 July: 78.6 µg/m³Santiago, 10 July: 39.8 µg/m³Santiago, 11 July: 63.1 µg/m³Santiago, 12 July: 76.0 µg/m³Santiago, 13 July: 86.6 µg/m³Santiago, 14 July: 105.4 µg/m³, 2.1× its usual 50.4Santiago, 15 July: 92.6 µg/m³Santiago, 16 July: 80.1 µg/m³Santiago, 17 July: 64.2 µg/m³QuillotaQuillota, 8 July: 59.6 µg/m³Quillota, 9 July: 65.5 µg/m³Quillota, 10 July: 47.1 µg/m³Quillota, 11 July: 43.1 µg/m³Quillota, 12 July: 59.8 µg/m³Quillota, 13 July: 65.8 µg/m³Quillota, 14 July: 73.1 µg/m³, 2.1× its usual 34.1Quillota, 15 July: 64.8 µg/m³Quillota, 16 July: 66.1 µg/m³Quillota, 17 July: 56.7 µg/m³QuinteroQuintero, 8 July: 40.9 µg/m³Quintero, 9 July: 38.5 µg/m³Quintero, 10 July: 29.7 µg/m³Quintero, 11 July: 30.7 µg/m³Quintero, 12 July: no readingQuintero, 13 July: 44.1 µg/m³Quintero, 14 July: 53.8 µg/m³, 2.0× its usual 26.8Quintero, 15 July: 48.1 µg/m³Quintero, 16 July: 46.4 µg/m³Quintero, 17 July: 40.1 µg/m³Viña del MarViña del Mar, 8 July: 35.1 µg/m³Viña del Mar, 9 July: 37.9 µg/m³Viña del Mar, 10 July: 23.6 µg/m³Viña del Mar, 11 July: no readingViña del Mar, 12 July: no readingViña del Mar, 13 July: no readingViña del Mar, 14 July: 52.3 µg/m³, 2.2× its usual 23.4Viña del Mar, 15 July: 42.3 µg/m³Viña del Mar, 16 July: 58.9 µg/m³Viña del Mar, 17 July: 46.7 µg/m³8 Jul91011121314151617
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.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

Every city it reached

CityDaysHighestUsualAbove usual
CauquenesMaule Region, Chile2 255.011 July39.56.5×
Puerto MonttLos Lagos Region, Chile1 162.514 July37.34.4×
TalcahuanoBiobio, Chile2 151.511 July38.34.0×
RancaguaO'Higgins Region, Chile2 204.014 July52.53.9×
ChillánÑuble, Chile1 129.713 July40.03.2×
Los ÁngelesBiobio, Chile2 112.714 July35.83.1×
CuricóMaule Region, Chile2 150.013 July49.53.0×
CuranilahueBiobio, Chile2 129.012 July46.92.8×
TemucoAraucania, Chile3 127.012 July45.22.8×
HualpénBiobio, Chile2 171.011 July62.72.7×
La UniónLos Ríos Region, Chile2 109.014 July42.32.6×
NacimientoBiobio, Chile1 160.712 July69.72.3×
RengoO'Higgins Region, Chile1 125.014 July54.72.3×
ValdiviaLos Ríos Region, Chile2 95.014 July41.02.3×
TalaganteSantiago Metropolitan, Chile1 107.014 July49.32.2×
ChiguayanteBiobio, Chile2 64.513 July29.22.2×
Viña del MarValparaiso, Chile1 52.314 July23.42.2×
VillarricaAraucania, Chile1 127.014 July60.32.1×
SantiagoSantiago Metropolitan, Chile1 105.414 July50.42.1×
QuilpuéValparaiso, Chile2 75.814 July36.02.1×
QuillotaValparaiso, Chile1 73.114 July34.12.1×
LotaBiobio, Chile1 40.512 July19.02.1×
OsornoLos Lagos Region, Chile1 117.514 July58.02.0×
QuinteroValparaiso, Chile1 53.814 July26.82.0×

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 Chile

The largest of 30 episodes in Chile since our records began, by cities reached.

Bars: cities reached; colour: the level of the episode's highest daily reading. All 30.

Use this page

SmogRank, Southern Chile, 11 to 14 July 2024: 24 cities with PM2.5 at twice their usual or more, 11 to 14 July 2024, smogrank.com/episodes/2024-07-11-southern-chile (accessed 4 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.