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Air quality · Bihar

Patna AQI today पटना

Updated 3 Nov, 17:21 IST.

67 Satisfactory

Live estimate · modelled (CPCB stations offline)

India’s National AQI (CPCB)16:30 IST, 3 Nov Main pollutant: PM10

Minor breathing discomfort to sensitive people.

Official CPCB bulletin (4 PM today): 109 · Moderate · PM10 ↗

Same day last year (2025, CPCB): 146 · Moderate

On the US EPA scale: 79 (Moderate)

What to do today

  • Long walk or run outside OK
  • Kids playing outside OK
  • Airing the house Open
  • Mask outdoors Not needed

Based on CPCB’s health statement: “Minor breathing discomfort to sensitive people.” General guidance, not medical advice.

Last 24 hours

17:00 · 70 18:00 · 64 19:00 · 56 20:00 · 48 21:00 · 41 22:00 · 39 23:00 · 39 00:00 · 38 01:00 · 38 02:00 · 41 03:00 · 40 04:00 · 40 05:00 · 39 06:00 · 39 07:00 · 39 08:00 · 39 09:00 · 39 10:00 · 39 11:00 · 41 12:00 · 49 13:00 · 59 14:00 · 68 15:00 · 67 16:00 · 67 Now

Each bar is the city estimate at that hour. Like CPCB, it is a 24-hour average (8 hours for CO and O₃), so the bars move slowly.

Show as a table
TimeAQI
Mon 17:0070
Mon 18:0064
Mon 19:0056
Mon 20:0048
Mon 21:0041
Mon 22:0039
Mon 23:0039
Tue 00:0038
Tue 01:0038
Tue 02:0041
Tue 03:0040
Tue 04:0040
Tue 05:0039
Tue 06:0039
Tue 07:0039
Tue 08:0039
Tue 09:0039
Tue 10:0039
Tue 11:0041
Tue 12:0049
Tue 13:0059
Tue 14:0068
Tue 15:0067
Tue 16:00 · Now67

Pollutants

  • PM2.5 24.4 µg/m³ 41
  • PM10 24.7 µg/m³ 25
  • NO₂ 9.1 µg/m³ 11
  • O₃ 67.4 µg/m³ 67
  • CO 0.19 mg/m³ 9
  • SO₂ 6.5 µg/m³ 8

Modelled for the city (CAMS), not measured: 24-hour averages, 8-hour for CO and O₃, corrected to match CPCB’s recent bulletins.

Last 30 days (official)

Worst: 146 (27 Oct) · Best: 59 (1 Nov)

Last 30 days (official)
6 Oct105 Moderate
7 Oct84 Satisfactory
8 Oct71 Satisfactory
9 Oct69 Satisfactory
10 Oct76 Satisfactory
11 Oct69 Satisfactory
12 Oct82 Satisfactory
13 Oct91 Satisfactory
14 Oct106 Moderate
15 Oct119 Moderate
16 Oct91 Satisfactory
17 Oct96 Satisfactory
18 Oct86 Satisfactory
19 Oct94 Satisfactory
20 Oct95 Satisfactory
21 Oct104 Moderate
22 Oct104 Moderate
23 Oct90 Satisfactory
24 Oct93 Satisfactory
25 Oct85 Satisfactory
26 Oct97 Satisfactory
27 Oct146 Moderate
28 Oct119 Moderate
29 Oct75 Satisfactory
30 Oct63 Satisfactory
31 Oct63 Satisfactory
1 Nov59 Satisfactory
2 Nov77 Satisfactory
3 Nov109 Moderate

CPCB’s official daily AQI (the 4 PM bulletin, a 24-hour average). CPCB ↗

Where this number comes from

CPCB stopped publishing hourly station data in September 2026, so the live estimate is modelled: CAMS forecast concentrations, averaged over CPCB’s own windows, scored with CPCB’s sub-index and scaled to match this city’s recent bulletins. The 4 PM figure is still CPCB’s own measurement.

Full methodology · Population: Patna

Nearby cities

City AQI
Varanasi Uttar Pradesh 99
Lucknow Uttar Pradesh 162
Kolkata West Bengal 92
Kanpur Uttar Pradesh 182
Agra Uttar Pradesh 136
Nagpur Maharashtra 108
  • Good 0–50
  • Satisfactory 51–100
  • Moderate 101–200
  • Poor 201–300
  • Very poor 301–400
  • Severe 401–500

Questions

What is Patna's AQI right now?
Patna's live estimate is 67 (Satisfactory) at 16:30 IST, 3 Nov, modelled while CPCB’s stations are offline. CPCB's official bulletin (4 PM today) was 109 (Moderate).

What is the main pollutant in Patna today?
PM10, according to CPCB's official bulletin (4 PM today).

Is it OK to go for a walk in Patna today?
OK. CPCB's health statement for “Satisfactory”: Minor breathing discomfort to sensitive people. General guidance, not medical advice.

Why do other apps show a different AQI for Patna?
Many apps use the US EPA scale, on which the same air scores 79 (Moderate). India's National AQI uses different breakpoints, so the two numbers differ even for identical air.