SmogRank / Cleaner or dirtier / Latvia

Latvia: cleaner or dirtier, 2024

In Latvia, 2 cities have enough days in both years to compare 2024 with the same days of 2023: 0 got dirtier and 2 cleaner.

Every city's change from 2023 to 2024, one column each, biggest rise on the left, coloured by its 2024 level. Above the line: dirtier. Below: cleaner.

The 2 cities that got cleaner, biggest fall first

#City20232024Change
1VentspilsLatvia4543−0.4 µg/m³−5%
2RigaLatvia4847−0.2 µg/m³−2%

Means in US AQI over the days a city was measured in both years, the same calendar days each year; a city needs 55% of the days paired, and at least 30. The change is in µg/m³ and per cent. How we compare.

Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Updated 2026-10-07 12:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.