{"city":{"id":"dehradun","name":{"en":"Dehradun","ur":"دہرادون","hi":"देहरादून"},"country":"IN","lat":30.3165,"lon":78.0322,"page":"https://hamarihawa.org/air/dehradun/"},"note":"Measurements around the city, not shares of what is in its air. Live air quality is not included: the pages fetch it in the browser from Open-Meteo (Copernicus CAMS model).","fires_now":{"wind_from_deg":104,"wind_kmh":8,"upwind_24h":25,"within_250km_24h":76,"within_250km_7d":1059,"upwind_districts":[{"name":"Udham Singh Nagar","state":"Uttarakhand","cc":"IN","slug":"udham-singh-nagar","spots":22,"km":217},{"name":"Rampur","state":"Uttar Pradesh","cc":"IN","slug":"rampur","spots":2,"km":198},{"name":"Bareilly","state":"Uttar Pradesh","cc":"IN","slug":"bareilly","spots":1,"km":212}],"unit":"distinct fire spots (one per fire, however many satellites saw it)"},"fires_daily":{"dates":["2026-09-30","2026-10-01","2026-10-02","2026-10-03","2026-10-04","2026-10-05","2026-10-06","2026-10-07","2026-10-08","2026-10-09","2026-10-10","2026-10-11","2026-10-12","2026-10-13","2026-10-14","2026-10-15","2026-10-16","2026-10-17","2026-10-18","2026-10-19","2026-10-20","2026-10-21","2026-10-22","2026-10-23","2026-10-24","2026-10-25","2026-10-26","2026-10-27","2026-10-28","2026-10-29"],"within_50km":[null,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,13,0,0,0,8,0,1,1,2,2,0],"within_250km":[null,29,30,23,28,19,26,23,27,28,21,19,13,4,54,14,6,47,80,120,88,73,76,117,129,162,156,127,208,91],"unit":"fire spots per Pakistan-time day, all satellites"},"seasons":{"from":"10-01","to":"10-29","years":[2019,2020,2021,2022,2023,2024,2025,2026],"suomi_npp_within_250km":[8486,9568,5454,6171,3299,1732,922,559],"gaps":{"2026":["2026-10-13"]},"missing":{}},"no2":{"m":1.96,"r":1.37,"cov":1,"peak":[1.66,"traffic","Dehradun",3,30.307,78.058],"rank":44,"prev":null,"prevEnd":"2026-10-14","window":["2026-10-15","2026-10-28"],"unit":"1e15 molecules/cm2 (approximate)","ranked_cities":58,"fields":{"m":"mean within 15 km","r":"ratio to the surrounding baseline","cov":"share of the 15 km disc with data","peak":["smoothed ratio","kind","named after","km from the city","lat","lon"],"hist":"window end -> {city: [m, r]}"}},"sources_within_50km":{"ch4":{"n":0,"kg_h":0,"pk":0,"in":0,"top":[],"of":58},"co2":{"n":0,"t_h":0,"pk":0,"in":0,"top":[]},"fossil":{"n":0,"coal":0,"gas":0,"oil":0,"top":[]},"industry":{"n":95},"hot":{"n":0,"pk":0,"in":0,"top":[]},"kilns":{"n":16,"survey":true,"pk":0,"in":16,"zigzag":25,"est":0,"pm25_t_day":null},"rank":{"ch4":null,"co2":null,"hot":null,"industry":29,"kilns":32,"fossil":null},"ranked":{"ch4":34,"co2":22,"hot":23,"industry":58,"kilns":34,"fossil":35}},"sources_built":"2026-10-26","live_ranks":{"upwind_24h":6,"within_250km_24h":21,"within_250km_7d":29},"sources":{"fires":"NASA FIRMS (VIIRS, MODIS)","no2":"Sentinel-5P TROPOMI via NASA GIBS","methane_co2":"Carbon Mapper","maps":"OpenStreetMap (ODbL)","kilns":"SentinelKilnDB and Pakistan kiln surveys (CC BY-NC)"},"generated":"2026-10-29T22:48:00.000Z"}