https://goodairapp.com/blog/Air pollution and weather, explained.en https://goodairapp.com/blog/asia-most-polluted-cities-october-2026/https://goodairapp.com/blog/asia-most-polluted-cities-october-2026/Mon, 19 Oct 2026 05:46:00 GMTGood Air ranked 467 cities in 7 Asian countries by October 2026 PM2.5 from government monitors. The 25 most polluted are all in Indonesia; Delhi is 88th. https://goodairapp.com/blog/india-air-quality-after-monsoon-2026/https://goodairapp.com/blog/india-air-quality-after-monsoon-2026/Mon, 19 Oct 2026 05:46:00 GMTWe compared 219 Indian cities before and after the 2026 monsoon left. Maharashtra's median AQI doubled, all 34 cities worse; Delhi NCR's rose 25%. https://goodairapp.com/blog/improve-indoor-air-quality/https://goodairapp.com/blog/improve-indoor-air-quality/Sun, 18 Oct 2026 14:32:00 GMTHow to improve indoor air quality at home: cut the sources, ventilate when the outdoor AQI is low and filter the rest. Plus when to open the windows. https://goodairapp.com/blog/kalimantan-haze-october-2026/https://goodairapp.com/blog/kalimantan-haze-october-2026/Sun, 18 Oct 2026 14:32:00 GMTKalimantan haze update, 18 October 2026. Eight Indonesian cities and regencies hit hazardous ISPU, led by Kotawaringin Timur at 714. https://goodairapp.com/blog/what-is-ispu-indonesia-air-quality-index/https://goodairapp.com/blog/what-is-ispu-indonesia-air-quality-index/Sun, 18 Oct 2026 14:32:00 GMTWhat is ISPU? Indonesia's official air quality index runs from Baik to Berbahaya. The five levels, what each means, and why it reads lower than the US AQI. https://goodairapp.com/blog/southeast-asia-haze-2026/https://goodairapp.com/blog/southeast-asia-haze-2026/Wed, 14 Oct 2026 06:00:00 GMTPeat fires in Sumatra and Kalimantan pushed Singapore's PSI to its 2026 high and shut Malaysian schools. What is happening and how to stay safe. https://goodairapp.com/blog/best-time-of-day-delhi-air-pollution/https://goodairapp.com/blog/best-time-of-day-delhi-air-pollution/Sat, 17 Oct 2026 04:25:00 GMTDelhi NCR's air was cleanest from noon to 5 pm and dirtiest late at night in our hourly data for 10 to 17 October 2026. When to walk, run and open windows. https://goodairapp.com/blog/outer-banks-noreaster-hatteras-evacuation/https://goodairapp.com/blog/outer-banks-noreaster-hatteras-evacuation/Sat, 17 Oct 2026 04:25:00 GMTA nor'easter brings 50 mph gusts, waves to 14 feet and 2 to 4 feet of flooding to the Outer Banks from 17 October. Who must leave, NC 12 and the worst tides. https://goodairapp.com/blog/pollution-cough-sore-throat/https://goodairapp.com/blog/pollution-cough-sore-throat/Sat, 17 Oct 2026 04:25:00 GMTA pollution cough comes from fine particles irritating your airways. How to tell it from a cold, what actually helps, and the warning signs that need a doctor. https://goodairapp.com/blog/typhoon-champi-guam/https://goodairapp.com/blog/typhoon-champi-guam/Thu, 15 Oct 2026 16:01:00 GMTTyphoon Champi is forecast to pass just south of Guam early Sunday 18 October as a Category 3 typhoon. Warnings, COR 1, rain, surge and shelters. https://goodairapp.com/blog/santa-ana-winds-october-2026/https://goodairapp.com/blog/santa-ana-winds-october-2026/Thu, 15 Oct 2026 04:36:00 GMTSanta Ana winds in October 2026: the Norte Fire, 70,000 customers without power, red flag warnings and 95°F heat in Southern California until 17 October. https://goodairapp.com/blog/diwali-2026-air-quality-guide/https://goodairapp.com/blog/diwali-2026-air-quality-guide/Wed, 14 Oct 2026 06:00:00 GMTDiwali is on 8 November 2026. Are firecrackers allowed in Delhi NCR? The latest Supreme Court hearings, green crackers, and how to protect your family. https://goodairapp.com/blog/dhaka-air-pollution-winter-2026/https://goodairapp.com/blog/dhaka-air-pollution-winter-2026/Fri, 16 Oct 2026 04:14:00 GMTDhaka air pollution is climbing into winter 2026, with the AQI reaching 213 on 6 October. Why the smog returns each year, when it peaks and how to stay safe. https://goodairapp.com/blog/freeze-warning-vs-frost-advisory/https://goodairapp.com/blog/freeze-warning-vs-frost-advisory/Fri, 16 Oct 2026 04:14:00 GMTFreeze warning vs frost advisory: what each NWS alert means, where the first freeze hits the Plains and Midwest on 16 and 17 October, and how to protect plants. https://goodairapp.com/blog/protect-children-from-air-pollution/https://goodairapp.com/blog/protect-children-from-air-pollution/Thu, 15 Oct 2026 16:01:00 GMTHow to protect children from air pollution on smog and haze days: when to keep them in, safe AQI levels for play, clean air at home, masks and school rules. https://goodairapp.com/blog/el-nino-winter-2026/https://goodairapp.com/blog/el-nino-winter-2026/Thu, 15 Oct 2026 04:36:00 GMTEl Nino is heading for a strong to very strong peak this winter 2026-27, possibly the strongest since 1950. What it means for rain, heat and haze worldwide. https://goodairapp.com/blog/northeast-monsoon-2026-tamil-nadu/https://goodairapp.com/blog/northeast-monsoon-2026-tamil-nadu/Thu, 15 Oct 2026 04:36:00 GMTThe northeast monsoon 2026 is setting in over Tamil Nadu from 15 October. IMD expects normal October to December rain. Forecast, warnings and Chennai outlook. https://goodairapp.com/blog/delhi-rain-hailstorm-air-quality/https://goodairapp.com/blog/delhi-rain-hailstorm-air-quality/Thu, 15 Oct 2026 04:20:00 GMTRain and hail on 14 and 15 October 2026 should briefly reduce Delhi pollution, but IMD expects dry weather from 16 October, and the smog usually returns. https://goodairapp.com/blog/lahore-smog-season-2026/https://goodairapp.com/blog/lahore-smog-season-2026/Thu, 15 Oct 2026 04:20:00 GMTLahore's smog season runs from October to February and peaks in November. Where the air stands on 15 October 2026 and what Punjab is doing about it. https://goodairapp.com/blog/pm25-vs-pm10/https://goodairapp.com/blog/pm25-vs-pm10/Thu, 15 Oct 2026 04:20:00 GMTPM10 is coarse dust up to 10 micrometres; PM2.5 is fine smoke and soot up to 2.5. PM2.5 vs PM10 explained, with safe levels and today's examples. https://goodairapp.com/blog/air-purifier-room-size-cadr/https://goodairapp.com/blog/air-purifier-room-size-cadr/Wed, 14 Oct 2026 17:55:00 GMTMatch an air purifier's CADR to your room: at least two-thirds of the floor area in sq ft, or equal to it for heavy smoke. Worked examples for Indian homes. https://goodairapp.com/blog/hanoi-pollution-season-2026/https://goodairapp.com/blog/hanoi-pollution-season-2026/Wed, 14 Oct 2026 17:55:00 GMTHanoi's air reached US AQI 221 on 14 October 2026 as the smog season began. What causes it, how long it lasts, and what to do on bad days. https://goodairapp.com/blog/n95-vs-kn95-vs-ffp2-mask-pollution/https://goodairapp.com/blog/n95-vs-kn95-vs-ffp2-mask-pollution/Wed, 14 Oct 2026 05:06:00 GMTN95, KN95 and FFP2 masks all filter at least 94 to 95% of fine particles. For pollution, fit and a genuine label matter far more than which one you buy. https://goodairapp.com/blog/malaysia-haze-school-closures/https://goodairapp.com/blog/malaysia-haze-school-closures/Wed, 14 Oct 2026 05:05:00 GMTAll schools in Johor, Melaka and Negeri Sembilan were shut by haze on 14 October, plus nine districts. Who decides closures, and how to check. https://goodairapp.com/blog/grap-stages-explained/https://goodairapp.com/blog/grap-stages-explained/Wed, 14 Oct 2026 06:00:00 GMTWhat Delhi NCR's Graded Response Action Plan does at each stage, from dust control at Stage 1 to truck bans at Stage 4, and what changed in 2026. https://goodairapp.com/blog/is-it-safe-to-exercise-outside-aqi/https://goodairapp.com/blog/is-it-safe-to-exercise-outside-aqi/Wed, 14 Oct 2026 06:00:00 GMTExercise makes you breathe in far more air, and more pollution with it. When to train outdoors, when to move inside, and how to time your run on smoggy days. https://goodairapp.com/blog/stubble-burning-explained/https://goodairapp.com/blog/stubble-burning-explained/Wed, 14 Oct 2026 06:00:00 GMTWhy farmers in Punjab and Haryana burn paddy straw each autumn, how much it adds to Delhi's smog, the alternatives, and 2026 farm fire data. https://goodairapp.com/blog/us-aqi-vs-india-naqi/https://goodairapp.com/blog/us-aqi-vs-india-naqi/Wed, 14 Oct 2026 06:00:00 GMTThe US AQI is stricter in cleaner air; India's NAQI climbs faster in heavy smog. Why the same air gets two numbers, with a conversion table. https://goodairapp.com/blog/why-delhi-air-pollution-winter/https://goodairapp.com/blog/why-delhi-air-pollution-winter/Wed, 14 Oct 2026 06:00:00 GMTCold, still air traps vehicle exhaust, dust and smoke over North India every winter. The causes, 2026 farm fire data and Delhi's action plan. https://goodairapp.com/blog/wildfire-smoke-safety-guide/https://goodairapp.com/blog/wildfire-smoke-safety-guide/Wed, 14 Oct 2026 06:00:00 GMTHow to read the AQI during wildfire smoke, which masks work, how to make a clean room at home, and when to keep kids and pets inside.