deiG Hong Kong Air Quality Indices

2024-12-07 20:35 🔄

Urban core 港九市區	Whole territories 全境
80 Poor	86 Poor

	Location		AQI	Level	Dom.
HK	Central/Western	中西區	82	Poor	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 31.6 47.8 64.7 52.0 4.2 iAQI 92 44 26 25 2
	Eastern	東區	82	Poor	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 31.7 42.6 76.7 31.6 1.7 iAQI 92 39 31 15 1
	Southern	南區	78	Poor	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 29.5 40.5 80.1 36.8 6.4 iAQI 87 38 32 18 3
Kln	Sham Shui Po	深水埗	77	Poor	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 28.9 40.5 71.9 37.4 6.1 iAQI 86 38 29 18 3
	Kwun Tong	觀塘	78	Poor	PM₂₅
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 29.8 42.6 58.9 47.4 2.1 iAQI 88 39 29 19 1
New Territories	Tung Chung	東涌	84	Poor	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 32.6 46.4 81.8 44.3 2.1 iAQI 94 43 33 22 1
	Tuen Mun	屯門	106	Bad	PM₂₅
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 43.0 58.3 51.6 59.1 6.2 iAQI 119 52 25 24 3
	Yuen Long	元朗	93	Poor	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 37.0 52.2 56.4 45.6 1.5 iAQI 104 48 23 22 1
	Tsuen Wan	荃灣	87	Poor	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 34.4 46.2 62.1 46.0 1.7 iAQI 98 43 25 23 1
	Kwai Chung	葵涌	116	Bad	PM₂₅
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 47.6 58.3 69.7 48.6 1.7 iAQI 130 52 34 20 1
	North	北區	91	Poor	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 36.1 57.2 59.5 37.4 2.8 iAQI 102 52 24 18 1
	Tai Po	大埔	89	Poor	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 35.4 46.9 64.9 40.2 3.4 iAQI 100 43 26 20 2
	Sha Tin	沙田	75	Fair	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 28.2 39.1 72.5 37.4 1.4 iAQI 85 36 29 18 1
	Tseung Kwan O	將軍澳	70	Fair	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 25.0 39.5 81.8 19.4 2.2 iAQI 78 37 33 10 1
rural	Tap Mun	塔門	71	Fair	PM₂₅
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 25.9 35.4 77.8 12.6 2.5 iAQI 80 33 31 6 1
roadside	Central	中環	95	Poor	PM₂₅
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 37.7 52.2 94.0 23.0 4.1 iAQI 106 48 46 9 2
	Causeway Bay	銅鑼灣	109	Bad	PM₂₅
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 44.4 60.0 67.7 34.9 3.7 iAQI 122 53 33 14 2
	Mong Kok	旺角	86	Poor	PM₂₅
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 34.0 41.0 66.5 43.9 2.1 iAQI 97 38 33 18 1

History & Stats

Locations of Stations

Based on:

• Raw pollutant readings taken from the Environmental Protection Department's Air Quality Monitoring Network;
• The United States Environmental Protection Agency's standard, for individual pollutant scaling;
• deiG's proprietary algorithm derived from the University of Hong Kong's Hedley Environmental Index, for AQI calculation;
• Weather data from Hong Kong Observatory.

Contact: aqi@asc.hk

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