deiG Hong Kong Air Quality Indices

A service of  deiG Cloud
2023-12-09 20:33

Urban core 港九市區	Whole territories 全境
77 Poor	71 Fair

	Location		AQI	Level	Dominant
HK	Central/Western	中西區	77	Poor	PM₂₅	O₃
	PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 28.4 103.1 42.5 55.7 1.9 iAQI 85 42 39 28 1
	Eastern	東區	69	Fair	PM₂₅	O₃
	PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 23.6 113.2 43.2 47.0 1.8 iAQI 75 46 40 23 1
	Southern	南區	65	Fair	PM₂₅	O₃
	PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 20.4 124.6 39.5 37.3 4.4 iAQI 68 51 37 19 2
Kln	Sham Shui Po	深水埗	90	Poor	PM₂₅	PM₁₀
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 35.4 60.3 69.3 80.7 2.6 iAQI 100 53 34 33 1
	Kwun Tong	觀塘	72	Fair	PM₂₅	O₃
	PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 25.1 116.8 46.4 44.8 3.4 iAQI 78 48 43 22 2
New Territories	Tung Chung	東涌	42	Good	PM₂₅	O₃
	PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 10.5 86.9 20.4 15.0 7.1 iAQI 44 35 19 7 4
	Tuen Mun	屯門	76	Poor	PM₂₅	PM₁₀
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 27.1 55.8 88.2 35.6 7.4 iAQI 82 51 44 15 4
	Yuen Long	元朗	65	Fair	PM₂₅	PM₁₀
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 22.7 37.1 74.9 48.5 7.1 iAQI 73 34 31 24 4
	Tsuen Wan	荃灣	69	Fair	PM₂₅	PM₁₀
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 24.5 40.2 56.6 68.4 5.2 iAQI 77 37 28 28 3
	Kwai Chung	葵涌	62	Fair	PM₂₅	PM₁₀
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 20.9 37.9 79.9 55.2 10.9 iAQI 69 35 33 27 6
	North	北區	115	Bad	PM₂₅	PM₁₀
	PM₂₅ PM₁₀ O₃ NO₂ SO₂ μg/m³ 46.5 75.4 126.1 20.3 2.5 iAQI 128 61 51 10 1
	Tai Po	大埔	67	Fair	PM₂₅	O₃
	PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 21.4 124.1 40.6 23.0 2.5 iAQI 70 51 38 11 1
	Sha Tin	沙田	62	Fair	PM₂₅	O₃
	PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 18.5 127.2 34.6 13.1 2.1 iAQI 64 52 32 7 1
	Tseung Kwan O	將軍澳	69	Fair	PM₂₅	O₃
	PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 22.3 134.3 34.0 20.1 3.7 iAQI 72 55 31 10 2
rural	Tap Mun	塔門	58	Fair	PM₂₅	O₃
	PM₂₅ O₃ PM₁₀ NO₂ SO₂ μg/m³ 15.8 125.3 25.4 7.8 1.6 iAQI 58 51 24 4 1
roadside	Central	中環	88	Poor	PM₂₅	PM₁₀
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 34.5 56.0 69.0 84.1 4.4 iAQI 98 51 34 34 2
	Causeway Bay	銅鑼灣	106	Bad	PM₂₅	PM₁₀
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 42.7 70.3 94.3 66.2 5.2 iAQI 118 58 47 27 3
	Mong Kok	旺角	110	Bad	PM₂₅	PM₁₀
	PM₂₅ PM₁₀ NO₂ O₃ SO₂ μg/m³ 44.6 68.2 108.5 63.1 5.2 iAQI 123 57 55 26 3

 Historical Data  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