deiG Hong Kong Air Quality Indices
| 2025-04-03 15:55 🔄 |
 |
 |
| Urban core 港九市區 | Whole territories 全境 |
45 Good |
60 Fair |
| Location | AQI | Level | Dom. | |||
|---|---|---|---|---|---|---|
| HK | Central/Western | 中西區 | 47 | Good | PM₂₅ | |
PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 11.0 104.9 23.2 42.2 1.3 iAQI 46 43 21 21 1 | ||||||
| Eastern | 東區 | 46 | Good | O₃ | ||
O₃ PM₂₅ NO₂ PM₁₀ SO₂ μg/m³ 109.3 9.9 47.1 24.2 1.5 iAQI 45 41 24 22 1 | ||||||
| Southern | 南區 | 54 | Fair | O₃ | ||
O₃ PM₂₅ PM₁₀ NO₂ SO₂ μg/m³ 134.5 11.5 20.8 17.2 5.4 iAQI 55 48 19 9 3 | ||||||
| Kln | Sham Shui Po | 深水埗 | 50 | Good | PM₂₅ | |
PM₂₅ NO₂ O₃ PM₁₀ SO₂ μg/m³ 13.2 72.6 78.1 27.1 3.5 iAQI 53 36 32 25 2 | ||||||
| Kwun Tong | 觀塘 | 39 | Good | PM₂₅ | ||
PM₂₅ O₃ NO₂ PM₁₀ SO₂ μg/m³ 8.4 84.7 58.8 16.8 1.6 iAQI 35 35 29 16 1 | ||||||
| New Territories | Tung Chung | 東涌 | 91 | Poor | PM₂₅ | |
PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 35.5 136.4 52.9 61.6 6.4 iAQI 100 56 49 31 3 | ||||||
| Tuen Mun | 屯門 | 79 | Poor | PM₂₅ | ||
PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 29.1 51.2 114.6 55.7 8.2 iAQI 87 47 47 28 4 | ||||||
| Yuen Long | 元朗 | 75 | Fair | PM₂₅ | ||
PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 27.2 48.2 101.9 68.2 4.4 iAQI 82 45 42 34 2 | ||||||
| Tsuen Wan | 荃灣 | 62 | Fair | PM₂₅ | ||
PM₂₅ NO₂ O₃ PM₁₀ SO₂ μg/m³ 20.4 76.4 75.8 33.5 4.9 iAQI 68 38 31 31 3 | ||||||
| Kwai Chung | 葵涌 | 63 | Fair | PM₂₅ | ||
PM₂₅ NO₂ PM₁₀ O₃ SO₂ μg/m³ 18.7 108.2 33.7 59.5 9.6 iAQI 64 55 31 24 5 | ||||||
| North | 北區 | 72 | Fair | PM₂₅ | ||
PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 23.7 142.4 34.3 23.8 3.1 iAQI 75 58 32 12 2 | ||||||
| Tai Po | 大埔 | 63 | Fair | O₃ | ||
O₃ PM₂₅ PM₁₀ NO₂ SO₂ μg/m³ 147.9 16.2 26.9 18.6 4.6 iAQI 61 59 25 9 3 | ||||||
| Sha Tin | 沙田 | 51 | Fair | O₃ | ||
O₃ PM₂₅ PM₁₀ NO₂ SO₂ μg/m³ 135.4 8.2 16.1 14.8 3.6 iAQI 56 34 15 7 2 | ||||||
| Tseung Kwan O | 將軍澳 | 53 | Fair | O₃ | ||
O₃ PM₂₅ PM₁₀ NO₂ SO₂ μg/m³ 135.3 10.5 25.8 13.9 5.1 iAQI 55 44 24 7 3 | ||||||
| rural | Tap Mun | 塔門 | -- | N/A | ||
NO₂ O₃ SO₂ PM₁₀ PM₂₅ μg/m³ -- -- -- -- -- iAQI -- -- -- -- -- | ||||||
| roadside | Central | 中環 | 55 | Fair | PM₂₅ | |
PM₂₅ NO₂ PM₁₀ O₃ SO₂ μg/m³ 14.1 99.6 24.8 47.8 4.2 iAQI 54 50 23 20 2 | ||||||
| Causeway Bay | 銅鑼灣 | 58 | Fair | PM₂₅ | ||
PM₂₅ NO₂ PM₁₀ O₃ SO₂ μg/m³ 16.5 94.8 37.4 45.3 3.0 iAQI 60 47 35 19 2 | ||||||
| Mong Kok | 旺角 | 61 | Fair | NO₂ | ||
NO₂ PM₂₅ PM₁₀ O₃ SO₂ μg/m³ 118.6 14.6 28.9 38.8 4.1 iAQI 61 56 27 16 2 | ||||||
History & Stats
Locations of Stations
the Environmental Protection Department's Air Quality Monitoring Network;
The United States Environmental Protection Agency's standard, for individual pollutant scaling;
deiG
the University of Hong Kong's