SmogRank / Cleaner or dirtier / Slovakia

Slovakia: cleaner or dirtier, 2024

In Slovakia, 19 cities have enough days in both years to compare 2024 with the same days of 2023: 17 got dirtier and 2 cleaner.

The 17 cities that got dirtier, biggest rise first

#	City	2023	2024	Change
1	NitraNitra Region, Slovakia	57	61	+2.3 µg/m³+19%
2	Vranov nad TopľouPrešov Region, Slovakia	59	63	+2.2 µg/m³+16%
3	TrenčínTrenčín Region, Slovakia	57	61	+2.0 µg/m³+16%
4	PrešovPrešov Region, Slovakia	64	68	+1.8 µg/m³+11%
5	BratislavaBratislava Region, Slovakia	55	59	+1.8 µg/m³+16%
6	ČaňaKošice Region, Slovakia	69	72	+1.7 µg/m³+9%
7	PrievidzaTrenčín Region, Slovakia	58	60	+1.4 µg/m³+11%
8	ŽilinaŽilina Region, Slovakia	62	65	+1.3 µg/m³+9%
9	SninaPrešov Region, Slovakia	52	54	+1.2 µg/m³+13%
10	HumennéPrešov Region, Slovakia	64	66	+1.1 µg/m³+7%
11	KošiceKošice Region, Slovakia	63	65	+1.1 µg/m³+7%
12	ZvolenBanská Bystrica Region, Slovakia	58	61	+1.1 µg/m³+8%
13	Žiar nad HronomBanská Bystrica Region, Slovakia	53	55	+0.6 µg/m³+6%
14	MartinŽilina Region, Slovakia	62	63	+0.4 µg/m³+3%
15	PartizánskeTrenčín Region, Slovakia	57	58	+0.4 µg/m³+3%
16	TrnavaTrnava Region, Slovakia	60	60	+0.2 µg/m³+1%
17	SenicaTrnava Region, Slovakia	59	59	+0.1 µg/m³+1%

The 2 cities that got cleaner, biggest fall first

#	City	2023	2024	Change
1	Banská BystricaBanská Bystrica Region, Slovakia	57	56	−0.6 µg/m³−5%
2	RužomberokŽilina Region, Slovakia	64	64	−0.2 µg/m³−1%

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.

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.