SmogRank / Episodes / Chile

Southern Chile, 30 June to 1 July 2024

For 2 days, from 30 June to 1 July 2024, 8 cities in Chile had PM2.5 at least twice their usual for the time of year. The worst reading was San Carlos, Ñuble, Chile: 195.0 µg/m³ on 30 June, about 4.6× its usual 42.6. Ended 1 July.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached8in 1 country
Days230 June to 1 July 2024
Worst day30 June6 cities counted
Furthest above usual4.6×San Carlos

Day by day

30 June 6 cities at twice their usual or more
CauquenesToméHualquiConcepciónChiguayanteTalcahuanoHualpénSan Pedro de la PazNacimientoCoronelCuricóCuranilahueRengoTemucoPuente AltoSantiagoTalcaLotaTalaganteRancaguaVillarricaChillánLos ÁngelesSan Carlos
27 Jun2829301 Jul234
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 CarlosSan Carlos, 27 June: 43.8 µg/m³San Carlos, 28 June: 35.8 µg/m³San Carlos, 29 June: 46.0 µg/m³San Carlos, 30 June: 195.0 µg/m³, 4.6× its usual 42.6San Carlos, 1 July: 137.0 µg/m³, 3.2× its usual 42.9San Carlos, 2 July: 144.0 µg/m³San Carlos, 3 July: 49.7 µg/m³San Carlos, 4 July: 32.0 µg/m³VillarricaVillarrica, 27 June: 30.6 µg/m³Villarrica, 28 June: 75.0 µg/m³Villarrica, 29 June: 105.0 µg/m³Villarrica, 30 June: 161.0 µg/m³, 2.9× its usual 55.7Villarrica, 1 July: 66.9 µg/m³Villarrica, 2 July: 42.5 µg/m³Villarrica, 3 July: 101.0 µg/m³Villarrica, 4 July: 96.4 µg/m³Los ÁngelesLos Ángeles, 27 June: 20.7 µg/m³Los Ángeles, 28 June: 39.5 µg/m³Los Ángeles, 29 June: 41.6 µg/m³Los Ángeles, 30 June: 155.0 µg/m³, 4.1× its usual 37.9Los Ángeles, 1 July: 38.9 µg/m³Los Ángeles, 2 July: 22.0 µg/m³Los Ángeles, 3 July: 34.2 µg/m³Los Ángeles, 4 July: 57.8 µg/m³ChillánChillán, 27 June: 47.3 µg/m³Chillán, 28 June: 31.2 µg/m³Chillán, 29 June: 42.9 µg/m³Chillán, 30 June: 124.6 µg/m³, 3.1× its usual 40.6Chillán, 1 July: 100.0 µg/m³, 2.5× its usual 40.7Chillán, 2 July: 69.4 µg/m³Chillán, 3 July: 39.3 µg/m³Chillán, 4 July: 32.6 µg/m³RancaguaRancagua, 27 June: 104.4 µg/m³Rancagua, 28 June: 60.3 µg/m³Rancagua, 29 June: 72.1 µg/m³Rancagua, 30 June: 117.0 µg/m³, 2.2× its usual 52.9Rancagua, 1 July: 65.0 µg/m³Rancagua, 2 July: 53.0 µg/m³Rancagua, 3 July: 70.7 µg/m³Rancagua, 4 July: 41.3 µg/m³TalaganteTalagante, 27 June: 68.2 µg/m³Talagante, 28 June: 40.8 µg/m³Talagante, 29 June: 58.1 µg/m³Talagante, 30 June: 104.0 µg/m³, 2.1× its usual 50.5Talagante, 1 July: 65.1 µg/m³Talagante, 2 July: no readingTalagante, 3 July: 52.9 µg/m³Talagante, 4 July: 39.0 µg/m³TalcaTalca, 27 June: 69.3 µg/m³Talca, 28 June: 35.5 µg/m³Talca, 29 June: 22.7 µg/m³Talca, 30 June: 50.7 µg/m³Talca, 1 July: 83.7 µg/m³, 2.0× its usual 41.8Talca, 2 July: 75.2 µg/m³Talca, 3 July: 42.8 µg/m³Talca, 4 July: 23.3 µg/m³LotaLota, 27 June: no readingLota, 28 June: no readingLota, 29 June: no readingLota, 30 June: 24.1 µg/m³Lota, 1 July: 39.9 µg/m³, 2.1× its usual 19.3Lota, 2 July: 20.5 µg/m³Lota, 3 July: 27.6 µg/m³Lota, 4 July: no reading27 Jun2829301 Jul234
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
San CarlosÑuble, Chile2 195.030 June42.64.6×
Los ÁngelesBiobio, Chile1 155.030 June37.94.1×
ChillánÑuble, Chile2 124.630 June40.63.1×
VillarricaAraucania, Chile1 161.030 June55.72.9×
RancaguaO'Higgins Region, Chile1 117.030 June52.92.2×
TalaganteSantiago Metropolitan, Chile1 104.030 June50.52.1×
LotaBiobio, Chile1 39.91 July19.32.1×
TalcaMaule Region, Chile1 83.71 July41.82.0×

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

Number 29 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, 30 June to 1 July 2024: 8 cities with PM2.5 at twice their usual or more, 30 June to 1 July 2024, smogrank.com/episodes/2024-06-30-southern-chile (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.