{"city":{"id":"kolkata","name":{"en":"Kolkata","ur":"کولکاتہ","hi":"कोलकाता"},"country":"IN","lat":22.5726,"lon":88.3639,"page":"https://hamarihawa.org/air/kolkata/"},"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":121,"wind_kmh":12,"upwind_24h":0,"within_250km_24h":24,"within_250km_7d":978,"upwind_districts":[],"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,0,1,0,1,2,0,0,0,2,1,1,2,0,1,3,1,0,1,1,1,1,2,0,1,3,3,0,0,0],"within_250km":[null,164,125,166,163,169,168,52,83,164,170,189,180,6,211,200,162,169,121,189,186,184,196,184,178,234,201,109,7,3],"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":[1201,1273,1049,1553,1765,1050,1664,2107],"gaps":{"2026":["2026-10-13"]},"missing":{}},"no2":{"m":3.88,"r":2.2,"cov":1,"peak":[2.79,"plant","Southern CESC power station",9,22.502,88.319],"rank":20,"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":1,"kg_h":1191,"pk":0,"in":1,"top":[["Dhapa Landfill",1191,21,88,"2026-08-21","IN",8,"South 24 Parganas",10]],"of":58},"co2":{"n":2,"t_h":795,"pk":0,"in":2,"top":[["Pujali","power",521,"IN",26],["Bandel Thermal Power Station","coal",274,"IN",47]]},"fossil":{"n":3,"coal":2,"gas":0,"oil":1,"top":[["Bandel Thermal Power Station","coal",450,47],["Southern CESC power station","coal",135,8],["ONGC Ashoknagar","oil",null,38]]},"industry":{"n":358},"hot":{"n":1,"pk":0,"in":1,"top":[["Kulgachi",20,"IN",39]]},"kilns":{"n":0,"survey":false,"pk":0,"in":0,"zigzag":null,"est":0,"pm25_t_day":null},"rank":{"ch4":16,"co2":3,"hot":13,"industry":10,"kilns":null,"fossil":12},"ranked":{"ch4":34,"co2":22,"hot":23,"industry":58,"kilns":34,"fossil":35}},"sources_built":"2026-10-26","live_ranks":{"upwind_24h":null,"within_250km_24h":42,"within_250km_7d":32},"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"}