Delhi NCR Air Quality Intelligence
Live observations and a 72-hour PM2.5 · PM10 · O₃ outlook for the capital region.
Simulated forecast preview
PM2.5 now · ITO
102µg/m³
Poor·64 µg/m³ over 24h
Peak PM2.5 in window
328µg/m³
at T+33h · inversion 87
Min mixing height
363m
at T+30h · wind 1.9 m/s
Upwind fire pulse hours
12/ 72 h
Satellite fire detections weighted toward ITO
Pollutant trajectory
Hourly steps, shaded bands mark upwind fire-plume hours
Live ground truth
Nearest reference monitor and upwind satellite fire activity
WAQI offline
FIRMS offline
Active alerts
- Strong nocturnal inversioncritical
Inversion index peaks at 90 with PBL compressed to 410 m — pollutant trapping likely.
T+3h → T+59h
- Upwind stubble-burning plumecritical
Wind-weighted fire signal from Punjab/Haryana intersects this station across 12 forecast hours.
T+13h → T+63h
- PM2.5 exceedance forecastcritical
Predicted PM2.5 peaks at 328 µg/m³ at T+33h, above the CPCB 'Poor' threshold.
T+4h → T+64h
Inversion ⇄ pollutant coupling
Mixing-height compression, inversion strength and the PM2.5 that feeds the next hourly step
Meteorology now
Surface state driving the forecast
- Temperature
- 22.1 °C
- Wind speed
- 1.7 m/s
- Mixing height
- 1063 m
- Inversion index
- 39
- NOx
- 52.9 µg/m³
Hourly forecast table
Values for each of the 72 forecast steps
| Hour | PM2.5 | PM10 | O₃ | NOx | PBL | Inv. | Temp | Wind | Fire |
|---|---|---|---|---|---|---|---|---|---|
| T+0h | 102.1 | 177.1 | 41.6 | 52.9 | 1063 m | 39 | 22.1°C | 1.7 m/s | — |
| T+1h | 96 | 167 | 26.4 | 57.8 | 895 m | 58 | 21.1°C | 1.8 m/s | — |
| T+2h | 96 | 163.9 | 29.2 | 54.6 | 801 m | 58 | 19°C | 1 m/s | — |
| T+3h | 105.7 | 185.7 | 27.7 | 59.2 | 610 m | 71 | 16.5°C | 1.9 m/s | — |
| T+4h | 134.5 | 231 | 20.8 | 71.6 | 511 m | 77 | 15.7°C | 1.4 m/s | — |
| T+5h | 166.1 | 251.5 | 23.7 | 68.5 | 424 m | 87 | 14.2°C | 1.5 m/s | — |
| T+6h | 187.6 | 298.7 | 17.9 | 76.3 | 434 m | 87 | 14.1°C | 1.6 m/s | — |
| T+7h | 218.4 | 349.7 | 17.2 | 66.9 | 393 m | 89 | 14.4°C | 1.9 m/s | — |
| T+8h | 230.6 | 358.5 | 17.4 | 74.2 | 410 m | 90 | 14.7°C | 1.8 m/s | — |
| T+9h | 233.7 | 419.3 | 17.4 | 66.1 | 425 m | 85 | 14.1°C | 1.9 m/s | — |
| T+10h | 216.7 | 345.7 | 20.1 | 67.2 | 528 m | 82 | 15.4°C | 1 m/s | — |
| T+11h | 196.2 | 358.4 | 26.6 | 62.2 | 660 m | 65 | 17.1°C | 1.5 m/s | — |
| T+12h | 173.7 | 320.4 | 29.4 | 58.1 | 739 m | 55 | 18.5°C | 1.3 m/s | — |
| T+13h | 170.2 | 298.4 | 31.7 | 54.8 | 918 m | 58 | 21.2°C | 1.1 m/s | |
| T+14h | 136.2 | 246.9 | 42.2 | 50.2 | 1033 m | 46 | 22.5°C | 1.6 m/s | — |
| T+15h | 126.7 | 231.6 | 51 | 53.8 | 1198 m | 37 | 24.8°C | 3 m/s | |
| T+16h | 100.9 | 159.7 | 53 | 44 | 1237 m | 34 | 25.7°C | 2.9 m/s | — |
| T+17h | 74.4 | 129 | 61.5 | 45.1 | 1313 m | 18 | 27.1°C | 3.4 m/s | — |
| T+18h | 60.7 | 93.9 | 67.1 | 49.4 | 1363 m | 23 | 27.3°C | 4 m/s | — |
| T+19h | 52.7 | 81.6 | 70.8 | 40.5 | 1442 m | 14 | 28.3°C | 3.7 m/s | — |
| T+20h | 43.7 | 77.6 | 67.7 | 44.1 | 1416 m | 24 | 27.2°C | 3.6 m/s | — |
| T+21h | 45.3 | 69.5 | 63.2 | 46.5 | 1314 m | 28 | 26.8°C | 3.8 m/s | — |
| T+22h | 38.9 | 67.5 | 54.1 | 47.5 | 1232 m | 33 | 26°C | 3.6 m/s | — |
| T+23h | 38.5 | 65.9 | 44.6 | 56.2 | 1163 m | 40 | 24.4°C | 2.9 m/s | — |
| T+24h | 41.1 | 72.6 | 40.5 | 55 | 997 m | 43 | 21.9°C | 1.6 m/s | — |
| T+25h | 46.9 | 76 | 28.8 | 54.1 | 902 m | 55 | 20.6°C | 1.9 m/s | — |
| T+26h | 53.4 | 94.8 | 27.9 | 53.4 | 798 m | 59 | 18.6°C | 1.9 m/s | — |
| T+27h | 66.7 | 122.2 | 29.9 | 57.8 | 654 m | 64 | 16.5°C | 1.3 m/s | — |
| T+28h | 103.9 | 178 | 27.8 | 66.9 | 518 m | 73 | 16°C | 1.6 m/s | — |
| T+29h | 138.6 | 222.7 | 24.5 | 70.6 | 464 m | 78 | 14.3°C | 1.5 m/s | — |
| T+30h | 184.8 | 307.6 | 23.2 | 69.3 | 363 m | 83 | 13.4°C | 1.9 m/s | — |
| T+31h | 202.8 | 365.8 | 25.8 | 70.7 | 382 m | 81 | 14°C | 1 m/s | — |
| T+32h | 224.7 | 365.3 | 20.9 | 71.9 | 404 m | 85 | 13.4°C | 1.1 m/s | — |
| T+33h | 327.8 | 561.5 | 19.5 | 72.2 | 451 m | 87 | 15.3°C | 1.9 m/s | |
| T+34h | 288.4 | 477.5 | 25.3 | 62.5 | 541 m | 75 | 15.5°C | 1.3 m/s | — |
| T+35h | 299.6 | 518.6 | 30.3 | 57.4 | 617 m | 65 | 17.7°C | 1.6 m/s | |
| T+36h | 276.1 | 417.7 | 33.3 | 57.8 | 777 m | 56 | 18.6°C | 1.4 m/s | |
| T+37h | 242.4 | 405.5 | 28.7 | 57 | 933 m | 51 | 20.6°C | 1.2 m/s | |
| T+38h | 214.7 | 392.8 | 40.5 | 53.1 | 992 m | 42 | 22.8°C | 2.1 m/s | |
| T+39h | 174.4 | 299.4 | 51.1 | 42.5 | 1196 m | 33 | 23.8°C | 2.6 m/s | |
| T+40h | 131.9 | 225 | 60.2 | 42.2 | 1236 m | 26 | 25.5°C | 3.6 m/s | — |
| T+41h | 101.1 | 152.3 | 63.4 | 44.4 | 1322 m | 22 | 26.4°C | 3.9 m/s | — |
| T+42h | 72.8 | 133.8 | 66.9 | 36.9 | 1439 m | 13 | 27.3°C | 4.1 m/s | — |
| T+43h | 56.3 | 88.8 | 64.1 | 38.7 | 1394 m | 19 | 27.1°C | 4.3 m/s | — |
| T+44h | 38.5 | 62.2 | 66.1 | 41.9 | 1431 m | 16 | 26.9°C | 3.6 m/s | — |
| T+45h | 37.8 | 58.2 | 66 | 46.4 | 1394 m | 25 | 27.1°C | 4 m/s | — |
| T+46h | 33.1 | 58.7 | 55.1 | 44 | 1279 m | 24 | 26.1°C | 3.2 m/s | — |
| T+47h | 31 | 53.3 | 47.7 | 43.1 | 1166 m | 36 | 24.6°C | 3 m/s | — |
| T+48h | 43.7 | 69 | 38 | 55.3 | 1014 m | 45 | 22.7°C | 1.7 m/s | — |
| T+49h | 47.8 | 76.8 | 32.8 | 58.8 | 929 m | 49 | 21°C | 1.3 m/s | — |
| T+50h | 65.2 | 98 | 25.1 | 58.6 | 737 m | 60 | 19.6°C | 1.8 m/s | — |
| T+51h | 76.8 | 139.4 | 24.8 | 59.4 | 669 m | 66 | 16.8°C | 1.8 m/s | — |
| T+52h | 101 | 165.9 | 27.6 | 64.6 | 541 m | 75 | 16.5°C | 1.1 m/s | — |
| T+53h | 137.9 | 249.6 | 24.8 | 63.2 | 408 m | 81 | 14.5°C | 1.3 m/s | — |
| T+54h | 169.8 | 268.5 | 22.5 | 63 | 428 m | 79 | 13.9°C | 1 m/s | — |
| T+55h | 190.2 | 288.6 | 20.3 | 70.2 | 402 m | 85 | 13.2°C | 1.7 m/s | — |
| T+56h | 205.7 | 336.4 | 25.8 | 69.6 | 415 m | 80 | 14.2°C | 1.9 m/s | — |
| T+57h | 287.2 | 512.5 | 26.1 | 64.8 | 431 m | 76 | 15.2°C | 1.6 m/s | |
| T+58h | 255.7 | 454.6 | 21 | 60.9 | 535 m | 73 | 15.7°C | 1 m/s | — |
| T+59h | 285.5 | 507.5 | 24.8 | 62.4 | 621 m | 74 | 16.9°C | 1.9 m/s | |
| T+60h | 232.9 | 395.9 | 28.2 | 64.2 | 728 m | 64 | 18.8°C | 1.8 m/s | — |
| T+61h | 190.2 | 317.6 | 30.1 | 61.3 | 863 m | 57 | 21.4°C | 1.6 m/s | — |
| T+62h | 169.6 | 279.3 | 41.3 | 51.4 | 1034 m | 45 | 22.4°C | 1.7 m/s | |
| T+63h | 153.4 | 263.8 | 52.2 | 54.5 | 1141 m | 35 | 23.6°C | 2.7 m/s | |
| T+64h | 122.8 | 224.2 | 56.5 | 48.8 | 1296 m | 25 | 26.3°C | 2.9 m/s | — |
| T+65h | 90.5 | 146.9 | 64.8 | 35.7 | 1350 m | 18 | 26.6°C | 3.5 m/s | — |
| T+66h | 65.8 | 106.8 | 68.7 | 38.7 | 1422 m | 25 | 28°C | 3.7 m/s | — |
| T+67h | 46.9 | 84.4 | 64.2 | 41.7 | 1444 m | 23 | 27.1°C | 3.9 m/s | — |
| T+68h | 44.5 | 80.2 | 62.4 | 49.1 | 1360 m | 24 | 27.8°C | 4.3 m/s | — |
| T+69h | 45.6 | 82.4 | 59.4 | 43.6 | 1359 m | 29 | 27°C | 3.8 m/s | — |
| T+70h | 46.8 | 72.6 | 54.8 | 48.6 | 1256 m | 30 | 25.4°C | 3.2 m/s | — |
| T+71h | 42.3 | 74.4 | 48.7 | 49.8 | 1190 m | 37 | 23.7°C | 2.5 m/s | — |