CO Exposure

This indicator measures a country’s ambient ground-level concentration of carbon monoxide (CO), weighted by population to better capture the exposure levels in geographic areas with a higher human population density. A score of 100 indicates a country has among the lowest exposure in the world, and a score of 0 indicates a country is among the highest. Data come from the Copernicus Atmosphere Monitoring Service.

EPI MeasureCarbon Monoxide Exposure

Click on a country name to see that country's full results table

Table of EPI results for Carbon Monoxide Exposure
Country	Rank	EPI Score	10-Year Change	Regional Rank	Regional Average
Tonga	1	96.76	-3.24	1	58.26
Samoa	2	96.73	-3.27	2	58.26
Vanuatu	3	95.87	-0.01	3	58.26
Solomon Islands	4	93.85	-3.55	4	58.26
New Zealand	5	91.94	-1.52	1	64.42
Fiji	6	91.91	-1.98	5	58.26
Kiribati	7	91.47	-7.25	6	58.26
Mauritius	8	88.67	3.88	1	46.98
Palau	9	88.29	3.51	7	58.26
Seychelles	10	84.62	-2.73	2	46.98
Australia	11	82.52	2.54	2	64.42
Antigua & Barbuda	12	82.5	-2.19	1	63.33
Saint Kitts & Nevis	13	82.49	-2.18	2	63.33
Dominica	14	81.79	-2.68	3	63.33
Barbados	15	81.57	-3.39	4	63.33
Saint Lucia	16	81.48	-3.03	5	63.33
St. Vincent & the Gren.	17	80.75	-3.97	6	63.33
Grenada	18	79.46	-5.51	7	63.33
Papua New Guinea	19	79.33	0.34	8	58.26
Comoros	20	78.86	-3.16	3	46.98
Cabo Verde	21	78.36	-1.05	4	46.98
Bahamas	22	78.33	0.34	8	63.33
Trinidad & Tobago	23	77.14	-4.13	9	63.33
Uruguay	24	76.55	-1.98	10	63.33
Timor-Leste	25	76.17	7.73	9	58.26
Maldives	26	73.77	1.51	1	22.3
Suriname	27	72.19	-6.78	11	63.33
Iceland	28	71.78	1.85	3	64.42
Guyana	29	70.78	-8.74	12	63.33
Malta	30	69.59	1.2	4	64.42
Ireland	31	69.51	0.92	5	64.42
Mauritania	32	67.91	-2.64	5	46.98
Belize	33	67.44	-5.26	13	63.33
Nicaragua	34	66.98	-5.1	14	63.33
São Tomé & Príncipe	35	66.92	-10.09	6	46.98
Cyprus	36	66.63	1.1	1	58.46
Sweden	37	66.33	2.72	6	64.42
Jamaica	38	65.97	1.67	15	63.33
Denmark	39	65.27	3.37	7	64.42
Mongolia	40	64.91	0.27	10	58.26
Finland	41	64.85	2.42	8	64.42
United Kingdom	42	64.83	6.0	9	64.42
Panama	43	64.75	-3.73	16	63.33
Norway	44	64.55	1.01	10	64.42
Argentina	45	64.07	-4.58	17	63.33
Costa Rica	46	63.84	-5.6	18	63.33
Spain	46	63.84	1.68	11	64.42
Georgia	48	63.65	0.0	1	60.52
Kazakhstan	49	63.46	1.07	2	60.52
Moldova	50	63.27	2.9	3	60.52
Belarus	51	63.23	1.11	4	60.52
Turkmenistan	52	63.12	0.03	5	60.52
Dominican Republic	53	63.0	-1.52	19	63.33
Netherlands	54	62.96	7.22	12	64.42
Botswana	55	62.91	-4.52	7	46.98
Montenegro	56	62.63	1.3	2	58.46
Albania	57	62.46	1.36	3	58.46
Djibouti	58	62.45	-6.84	8	46.98
Azerbaijan	59	61.94	-0.13	6	60.52
Ukraine	60	61.73	1.78	7	60.52
Madagascar	61	61.0	0.34	9	46.98
Türkiye	62	60.95	1.72	4	58.46
Estonia	63	60.88	2.86	5	58.46
Greece	64	60.76	1.42	6	58.46
Kyrgyzstan	65	60.39	-1.62	8	60.52
Philippines	66	60.14	5.25	11	58.26
France	67	59.66	4.66	13	64.42
Portugal	68	59.55	-6.43	14	64.42
Germany	69	59.38	5.73	15	64.42
Namibia	70	59.32	-2.97	10	46.98
Russia	71	59.19	1.73	9	60.52
Lithuania	72	59.13	1.49	7	58.46
Mozambique	73	59.12	-0.93	11	46.98
Bosnia & Herzegovina	74	59.1	1.31	8	58.46
Belgium	75	58.98	6.92	16	64.42
Switzerland	76	58.85	7.68	17	64.42
Haiti	77	58.63	-0.41	20	63.33
Japan	78	58.61	8.85	12	58.26
Armenia	79	58.6	-0.7	10	60.52
Singapore	80	58.58	22.71	13	58.26
North Macedonia	81	58.54	2.0	9	58.46
Romania	82	58.48	3.43	10	58.46
Serbia	83	58.15	3.12	11	58.46
Luxembourg	84	57.99	5.42	18	64.42
Sudan	85	57.96	-2.45	1	39.07
Poland	86	57.91	4.25	12	58.46
Bulgaria	87	57.86	1.89	13	58.46
Canada	88	57.65	0.65	19	64.42
Latvia	89	57.43	2.73	14	58.46
United States	90	57.4	3.29	20	64.42
Hungary	91	56.45	2.77	15	58.46
Slovakia	92	56.08	3.39	16	58.46
Austria	93	55.95	3.43	21	64.42
Honduras	94	55.78	-3.13	21	63.33
Saudi Arabia	95	55.06	-4.65	2	39.07
Uzbekistan	96	54.94	-0.94	11	60.52
Tanzania	97	54.52	-4.01	12	46.98
Peru	98	54.06	-12.23	22	63.33
Mali	99	53.92	-1.5	13	46.98
Croatia	100	53.81	1.23	17	58.46
Italy	101	53.77	7.28	22	64.42
Senegal	102	53.75	-6.53	14	46.98
Chad	103	53.47	0.04	15	46.98
Brazil	104	53.43	-7.55	23	63.33
Czechia	105	53.32	4.76	18	58.46
Tajikistan	106	52.72	-0.69	12	60.52
Equatorial Guinea	107	52.28	-7.44	16	46.98
Oman	108	52.0	-8.91	3	39.07
Burkina Faso	109	50.69	-2.05	17	46.98
Niger	110	50.58	-1.65	18	46.98
Paraguay	111	50.41	-11.05	24	63.33
Slovenia	112	50.25	1.53	19	58.46
Zimbabwe	113	50.02	-1.01	19	46.98
Guinea-Bissau	114	49.91	-3.55	20	46.98
Gambia	115	49.9	-7.67	21	46.98
Afghanistan	116	49.72	-2.86	2	22.3
Zambia	117	49.61	1.13	22	46.98
Morocco	118	49.49	-7.04	4	39.07
Ecuador	119	49.46	-6.9	25	63.33
Lesotho	120	48.3	-3.53	23	46.98
Tunisia	121	48.28	-1.95	5	39.07
El Salvador	122	46.99	-0.95	26	63.33
Gabon	123	46.91	-7.22	24	46.98
Côte d'Ivoire	124	46.72	-6.46	25	46.98
Malaysia	125	45.84	21.95	14	58.26
Cambodia	126	45.77	4.27	15	58.26
Colombia	127	45.7	-5.43	27	63.33
Liberia	128	45.56	-6.86	26	46.98
Algeria	129	44.5	-6.05	6	39.07
Bolivia	130	43.37	-19.7	28	63.33
Malawi	131	42.93	-0.92	27	46.98
Indonesia	132	40.77	22.43	16	58.26
Taiwan	133	40.59	5.96	17	58.26
Ghana	134	40.31	-6.72	28	46.98
Togo	135	40.23	-4.57	29	46.98
Bahrain	136	39.99	-5.86	7	39.07
Guatemala	137	39.78	-4.07	29	63.33
Mexico	138	39.56	-3.56	30	63.33
Qatar	139	39.19	-6.59	8	39.07
Sri Lanka	140	38.75	-2.63	3	22.3
Angola	141	38.66	-2.51	30	46.98
Benin	142	38.33	-5.93	31	46.98
Cameroon	143	38.2	-4.87	32	46.98
Eswatini	144	37.74	-3.43	33	46.98
Guinea	145	36.92	2.98	34	46.98
Brunei Darussalam	146	36.8	-9.24	18	58.26
United Arab Emirates	147	36.24	-6.69	9	39.07
Myanmar	148	35.1	3.21	19	58.26
Sierra Leone	149	34.99	9.24	35	46.98
Ethiopia	150	34.57	-2.23	36	46.98
Central African Rep.	151	32.9	2.08	37	46.98
Lebanon	152	32.77	1.35	10	39.07
Iraq	153	32.12	-5.0	11	39.07
Kuwait	154	32.1	-2.34	12	39.07
Thailand	155	32.05	2.9	20	58.26
Republic of Congo	156	31.34	-5.57	38	46.98
Jordan	157	31.18	-4.92	13	39.07
Uganda	158	27.2	-1.35	39	46.98
Dem. Rep. Congo	159	25.89	-0.42	40	46.98
Egypt	160	25.73	-3.13	14	39.07
Viet Nam	161	25.5	3.5	21	58.26
Israel	162	25.28	-0.71	15	39.07
Chile	163	24.88	-0.06	31	63.33
Laos	164	24.07	6.33	22	58.26
Kenya	165	23.88	-4.78	41	46.98
Iran	166	23.29	-8.36	16	39.07
Nigeria	167	19.99	-7.07	42	46.98
Burundi	168	19.53	-0.83	43	46.98
Bhutan	169	15.31	0.9	4	22.3
South Korea	170	14.63	7.03	23	58.26
South Africa	171	13.33	-8.26	44	46.98
Rwanda	172	10.97	-0.97	45	46.98
China	173	4.56	1.84	24	58.26
Bangladesh	174	0.82	-1.8	5	22.3
India	175	0.0	-2.88	6	22.3
Nepal	175	0.0	0.0	6	22.3
Pakistan	175	0.0	-2.64	6	22.3
Environmental Performance Index 2026	EPI Measurement		Carbon Monoxide Exposure