Antofagasta air quality status updated May 19

Chile’s air-quality update for Antofagasta on May 19, 2026, showed conditions classified as “Bueno,” according to an Infobae advisory that cited the day’s pollution status. The report listed PM2.5 at 12 micrograms per cubic meter and PM10 at 37 micrograms per cubic meter, with ICAP readings of 24 and 28, respectively. The update said the day’s measures in force were tied to that classification. Chile’s Environment Ministry also operates the SINCA monitoring network, which lists an Antofagasta station reporting particulate matter and sulfur dioxide data. ### What did the May 19 advisory say about Antofagasta’s air that day? Infobae’s May 19 advisory said Antofagasta’s air quality was rated “Bueno” on that date. The outlet published the update at 04:16 a.m. PST and presented the result as the day’s official status for the city. The same advisory listed the pollutant readings behind that label: PM2.5 at 12 µg/m3 and PM10 at 37 µg/m3N. (infobae.com) It also gave ICAP values of 24 for PM2.5 and 28 for PM10. ### Which restrictions were listed alongside that “Bueno” status? Infobae’s text paired the Antofagasta reading with a set of restrictions and precautions that it described as applying under a “bueno” state. (infobae.com) Those included a ban on wood-burning heaters, except pellet units, in Santiago province and the communes of San Bernardo and Puente Alto, plus controls on visible smoke from heaters. The same list included permanent vehicle restrictions inside the Américo Vespucio ring road for vehicles without a green seal, four-digit restrictions outside the ring road on weekdays, and two-digit restrictions for green-seal vehicles registered before Sept. 1, 2011. It also listed weekday restrictions for motorcycles registered before Sept. 1, 2010, cargo-transport limits for trucks without a green seal, and an agricultural burning ban in the Metropolitan Region between March 15 and Sept. 30. (infobae.com) ### Were those measures specific to Antofagasta? The restrictions listed in the Infobae item referred to Santiago province, San Bernardo, Puente Alto, the Américo Vespucio ring road and the Metropolitan Region, not to the city of Antofagasta. The article did not identify a municipal Antofagasta decree in the text visible on the page, even though it framed the piece as an Antofagasta air-quality update. (infobae.com) Chile’s Aire Chile portal, operated by the Environment Ministry, publishes daily air-condition notices and measures for multiple cities, but the result visible in the ministry page snapshot reviewed here did not show Antofagasta among the listed urban areas for May 19, 2026. That means the ministry portal confirms the broader national system for daily air-condition reporting, but not a separate Antofagasta-specific restriction set in the material reviewed for this story. (infobae.com) ### What official monitoring source exists for Antofagasta itself? SINCA, Chile’s National Air Quality Information System, lists an “Estación Antofagasta” in the Region of Antofagasta. The station is owned by the Environment Ministry and operated by Algoritmos y Mediciones Ambientales SpA, according to the station page. The SINCA page says the Antofagasta station has reported MP10 and MP2.5 data since 2013 and sulfur dioxide data since 2018. (airechile.mma.gob.cl) The page reviewed on May 20 showed the latest listed records through May 18 for particulate matter and May 16 for sulfur dioxide. ### Where should residents look for the next update? The Environment Ministry’s SINCA platform says it provides online records from monitoring stations, including Antofagasta. (sinca.mma.gob.cl) Aire Chile also says residents can review “medidas y recomendaciones” for cities covered by the ministry’s daily air-condition system. The next concrete step is the next daily publication through those official channels: SINCA for station data and Aire Chile for any city-level measures the ministry posts. (sinca.mma.gob.cl) Infobae’s May 19 item said residents should follow the guidance associated with the day’s air-quality status. (infobae.com) (sinca.mma.gob.cl)