Hong Kong AQI Analytics

OpenAQ-derived PM2.5 and PM10 history for 11 cities, mapped to AQI Now city pages and normalized to the US EPA AQI scale.

Search city analytics

City

The highest average AQI in this pilot slice is Hong Kong, with an EPA AQI average of 79 and PM2.5 around 24.1 ug/m3. Its worst month is December.

Source: OpenAQ local parquet plus raw CSV coordinate recovery. Build 2026-05-12T00:27:56.105574+00:00.

Country average

US EPA scale

PM2.5 16.1 ug/m3 · PM10 25.5 ug/m3

Rank cities side by side using OpenAQ PM2.5 and PM10 history normalized to US EPA AQI.

11 eligible cities

Compare yearly air-quality direction, best years, worst years, and trend deltas.

11 eligible cities

Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.

11 eligible cities

Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.

11 eligible cities

City	Avg AQI	PM2.5	Worst month	Trend	Coverage
Hong Kong Hong Kong, Hong Kong	79	24.1 ug/m3	December	n/a	364 days · 1 locations
Tin Shui Wai Hong Kong, Hong Kong	67	18.5 ug/m3	December	n/a	365 days · 2 locations
Sham Shui Po Hong Kong, Hong Kong	62	16.3 ug/m3	December	n/a	365 days · 2 locations
Wan Tau Tong Hong Kong, Hong Kong	61	15.9 ug/m3	December	n/a	365 days · 2 locations
San Tung Chung Hang Hong Kong, Hong Kong	61	16.3 ug/m3	December	n/a	364 days · 1 locations
Shek Wai Kok Hong Kong, Hong Kong	60	15.5 ug/m3	December	n/a	363 days · 1 locations
Kwai Chung Hong Kong, Hong Kong	60	15.2 ug/m3	December	n/a	364 days · 1 locations
Central District Hong Kong, Hong Kong	57	13.9 ug/m3	December	n/a	363 days · 1 locations
Lam Tin Hong Kong, Hong Kong	57	14.0 ug/m3	December	n/a	364 days · 1 locations
Sai Wan Ho Hong Kong, Hong Kong	56	14.4 ug/m3	December	n/a	364 days · 1 locations
Sha Tin Hong Kong, Hong Kong	53	13.0 ug/m3	December	n/a	364 days · 1 locations