Daily report · most polluted
Vietnam air quality on 19 October 2026
Hanoi Hà Nội96
ModerateUS AQI
Hanoi had the most polluted air of 12 Vietnamese cities
Updated · CEM
At 3:00 pm ICT on 19 October 2026, 12 Vietnamese cities were reporting. Hanoi had the most polluted air at US AQI 96 (Moderate), followed by Ho Chi Minh City (80) and Haiphong (70). The median across all cities was 58, up from 57 the day before. 0 cities were at Unhealthy or worse (0 the day before). Thừa Thiên Huế had the cleanest air at 21.
The biggest deterioration was in Hanoi, from 57 to 96. Bắc Ninh improved most, from 76 to 66.
- Good 3
- Moderate 9
10 most polluted cities
| # | City | Province | US AQI | Change |
|---|---|---|---|---|
| 1 | Hanoi | Hà Nội | 96Moderate | ▲ 39 |
| 2 | Ho Chi Minh City | Hồ Chí Minh | 80Moderate | ▲ 29 |
| 3 | Haiphong | Hải Phòng | 70Moderate | ▲ 12 |
| 4 | Bắc Ninh | Bắc Ninh | 66Moderate | ▼ 10 |
| 5 | Quảng Ninh | Quảng Ninh | 62Moderate | ▲ 10 |
| 6 | Nam Định | Nam Định | 58Moderate | ▼ 4 |
| 7 | Ninh Bình | Ninh Bình | 58Moderate | ▼ 9 |
| 8 | Da Nang | Đà Nẵng | 57Moderate | 0 |
| 9 | Quảng Ngãi | Quảng Ngãi | 57Moderate | ▼ 4 |
| 10 | Hà Tĩnh | Hà Tĩnh | 46Good | ▲ 2 |
10 cleanest cities
| # | City | Province | US AQI | Change |
|---|---|---|---|---|
| 1 | Thừa Thiên Huế | Thừa Thiên Huế | 21Good | ▼ 1 |
| 2 | Lâm Đồng | Lâm Đồng | 26Good | ▲ 8 |
| 3 | Hà Tĩnh | Hà Tĩnh | 46Good | ▲ 2 |
| 4 | Quảng Ngãi | Quảng Ngãi | 57Moderate | ▼ 4 |
| 5 | Da Nang | Đà Nẵng | 57Moderate | 0 |
| 6 | Ninh Bình | Ninh Bình | 58Moderate | ▼ 9 |
| 7 | Nam Định | Nam Định | 58Moderate | ▼ 4 |
| 8 | Quảng Ninh | Quảng Ninh | 62Moderate | ▲ 10 |
| 9 | Bắc Ninh | Bắc Ninh | 66Moderate | ▼ 10 |
| 10 | Haiphong | Hải Phòng | 70Moderate | ▲ 12 |
Biggest rises
All 12 cities on 19 October 2026
| # | City | Province | US AQI | Change |
|---|---|---|---|---|
| 1 | Hanoi | Hà Nội | 96Moderate | ▲ 39 |
| 2 | Ho Chi Minh City | Hồ Chí Minh | 80Moderate | ▲ 29 |
| 3 | Haiphong | Hải Phòng | 70Moderate | ▲ 12 |
| 4 | Bắc Ninh | Bắc Ninh | 66Moderate | ▼ 10 |
| 5 | Quảng Ninh | Quảng Ninh | 62Moderate | ▲ 10 |
| 6 | Nam Định | Nam Định | 58Moderate | ▼ 4 |
| 7 | Ninh Bình | Ninh Bình | 58Moderate | ▼ 9 |
| 8 | Da Nang | Đà Nẵng | 57Moderate | 0 |
| 9 | Quảng Ngãi | Quảng Ngãi | 57Moderate | ▼ 4 |
| 10 | Hà Tĩnh | Hà Tĩnh | 46Good | ▲ 2 |
| 11 | Lâm Đồng | Lâm Đồng | 26Good | ▲ 8 |
| 12 | Thừa Thiên Huế | Thừa Thiên Huế | 21Good | ▼ 1 |
Snapshot taken at 3:00 pm ICT from Center for Environmental Monitoring (CEM) · Envisoft. Values are the latest hourly readings at that time, not daily averages. Cities with no reading are left out.