World's Most Polluted Cities in 2019 - PM2.5 Ranking

Rank	City	2019 AVG	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC	2018 AVG	2017 AVG
1	Coyhaique, Chile	41.5	6.2	11.3	20.3	39.9	55.6	84.4	104.9	62.7	40.3	22.4	12.3	10.4	34.2	39.3
2	Osorno, Chile	32.8	-	-	9.5	40.7	53.3	62	63.6	40.5	21.7	16.6	9.4	6	38.2	30.8
3	Padre las Casas, Chile	32.5	5.8	10.3	13	35.6	63	48.5	59.4	60	34.9	23.2	11.5	6.7	43.3	38.8
4	Providencia, Chile	29.5	-	12.1	20.6	37.8	33	44.4	61.6	38.3	24.1	17.5	12.2	9.1	-	-
5	Santiago, Chile	27.7	21.1	19.2	17.7	31.7	33.5	45.4	56.6	35.8	19	17.3	14.6	14.6	29.4	23.1
6	Linares, Chile	27.6	7.4	9.5	14.6	36.7	56.8	46.1	59.2	39.6	18.8	9.8	8.7	8.5	25.5	27.1
7	Pudahuel, Chile	27.6	17.6	17.3	14.9	22.1	30.6	48	59.8	36.7	18.8	16.8	15.2	14.9	-	-
8	Rancagua, Chile	26.9	9.6	13.9	16.5	27.9	39.9	50.5	62	34.9	18.2	13	11	12.1	22.9	23.3
9	Puerto Montt, Chile	26.4	8	12	16.1	27.9	37.2	53.2	46.2	38.8	23.4	16	14.8	9.5	22.6	29.6
10	Los Cerrillos, Chile	26.2	17	15.9	15.9	29.4	31.9	44.7	55.5	33.3	17.3	17.1	13.3	15.8	-	-
11	Curico, Chile	25.8	10.8	12.1	15.6	27.9	43	46.5	55.2	34.7	18.1	10	9.2	9.9	16.8	23
12	Quilicura, Chile	25.3	17.8	17.8	17.4	30.4	29.2	37.8	51.7	32.2	17.9	16.2	14.2	13.6	-	-
13	La Union, Chile	24.3	6.6	8.4	11.5	27.5	39.9	52.6	45.7	35.1	20.6	14.1	9.5	6.3	-	-
14	Rengo, Chile	24.1	11	12.4	12.9	22.6	41.1	50.2	56.4	32.1	15.1	9.1	5.7	6.2	18.9	16.3
15	Lima, Peru	23.7	13.9	12.1	15.4	19.4	29.1	31.3	28.7	29.7	34.2	29.5	22	19.8	28	27.7
16	Puente Alto, Chile	23.5	15.9	15.8	16	29.8	28.9	34.2	45.3	29.7	17.1	15.2	14.2	13.4	-	-
17	Talagante, Chile	22.7	13.9	12.7	12.8	28	27.7	37.4	47.5	27.5	13.2	14	14.1	15.8	-	-
18	Sabaneta, Colombia	22.4	-	35	31.3	23.6	18.2	19.1	17.8	22.1	19.2	19.5	23.6	22.5	-	-
19	Puerto Aysen, Chile	22	5.4	4.8	12.4	20.9	32.6	54.7	44	29.1	16	12.2	10	8.5	-	-
20	Los Angeles, Chile	21.7	7.5	11.8	20.2	27.9	43.8	37	29.2	33	16.2	10.4	6.5	6.1	21.6	24.1
21	Curanilahue, Chile	21.6	11.8	13.7	12.7	22	35.7	35.8	28.4	37.9	21.1	17.1	9.7	6.8	-	-
22	Itaguei, Colombia	21.6	-	33.6	33.1	21.4	19.4	15.9	14.8	23.1	18	19.2	22.7	21.6	-	-
23	Talcahuano, Chile	21.4	17	20	15.8	22.1	31.3	34.4	27.2	26.7	19.7	14.5	12.5	12.7	15.7	21.3
24	San Fernando, Chile	21	11.2	12.9	12.5	19.8	38.8	41.6	47.1	26.6	13.3	8.3	5.9	5.6	15.3	18.1
25	Chillan, Chile	20.4	7.5	12.1	19	27.1	35.3	33.5	27.1	27.5	17	12.8	8.6	7.8	21.5	27.7
26	Maule, Chile	20.3	10.7	12.2	17.9	25.6	33.7	28.2	35.1	30.9	16.1	10.6	8.1	7.2	16.1	17.1
27	Temuco, Chile	20.2	5.7	8.3	9.9	22.7	42.1	33.7	31.6	33.1	19.4	12.6	7	5.1	30.4	28.7
28	Campinas, Brazil	20	13	10	12.6	15.8	24.7	27.7	26	24.5	19.2	25.1	17.1	15.2	16	-
29	Las Condes, Chile	19.9	25.9	22.8	18.8	27	21.8	19.5	33.1	22.3	14.7	12.4	11.7	12.8	-	-
30	Medellin, Colombia	19.9	23.5	32.1	30.9	19.2	17.2	13.8	12.7	20.8	16.5	16.3	20.3	18.9	-	-
31	Osasco, Brazil	19.8	17.6	16.2	17.1	22.4	24.6	22.6	23.2	19.9	22.2	18.5	15.2	15.7	22.1	-
32	Chiguayante, Chile	19.8	10.5	12.1	11.4	21.4	34.3	32.8	31.3	29.7	19.3	12.1	7.8	7	17	16.1
33	Bello, Colombia	18.9	18.7	29.3	31.1	20.2	17.5	13.4	11.9	19.9	15.6	14.1	17.2	18	-	-
34	Santa Gertrudes, Brazil	18.8	12.9	14.5	17.9	19.4	16.9	21.2	22.3	21.6	29.2	22.7	14.3	10.7	-	-
35	Caldas, Colombia	18.8	-	-	-	21.1	18.6	16.2	16.8	25.1	18.3	16.9	18	19.5	-	-
36	Guarulhos, Brazil	18.7	19.3	18	12.7	21.2	22.5	24.4	22.6	15.8	18.9	18.7	12.7	12.8	21.6	17.3
37	Trujillo, Peru	18.1	-	12.4	16.2	18	20.9	22.4	21.9	20.3	16.6	15.7	16	16.2	-	-
38	Envigado, Colombia	17.8	-	30.8	30.7	19	15.6	12	12.4	19.2	14	14.4	16.4	16.6	-	-
39	Talca, Chile	17.6	9.1	9.5	15.5	21.7	29.1	25	35.2	29.7	13.4	7.3	4.5	4.5	13.7	14.3
40	La Estrella, Colombia	17.5	-	25.2	24.7	17.1	16	12.9	13.6	21	15.7	15.4	18.2	16.9	-	-
41	Sao Caetano do Sul, Brazil	17.2	16.8	16.3	13.8	17.6	21	21.1	22.7	14.9	13	16.7	12.7	13.7	18.1	-
42	Girardota, Colombia	17.1	-	-	-	16	13.3	13.7	17.2	27.8	17.1	17	15.5	14.2	-	-
43	Lanus Este, Argentina	16.8	13.1	17.4	12.6	19	16.4	20.4	20.3	18.4	14.4	13.5	16.9	17.7	-	-
44	Sao Bernardo do Campo, Brazil	16.7	20.8	13.7	13.1	17.5	16.8	18.1	20.4	15	17.4	18	14.5	15	16.4	-
45	Rio Branco, Brazil	16	-	5.7	4.9	6.7	8.4	12.6	18.4	47.6	37	9.4	6.9	4.2	-	-
46	Puchuncavi, Chile	15.9	16.5	15.6	15.2	18.9	19.1	14.8	18.2	16.6	12.8	12.4	15	15.6	14.8	13.7
47	Tome, Chile	15.7	12.9	15.4	12.8	20.9	26.6	19.1	17.9	21	12.2	10.4	8.1	9.1	20.9	14.8
48	La Greda, Chile	15.6	13.2	13.2	14.4	17.6	19.1	17.8	21.7	17.5	12.8	12.3	13	12	-	-
49	Santos, Brazil	15.4	14.3	12.9	10.4	15.6	16.3	22.9	19.1	15.1	14.2	14.6	12.5	13.9	14.8	15.9
50	Sao Paulo, Brazil	15.3	14.2	11.2	11.3	15.5	16.1	19.8	20.8	15.5	17.8	15.5	11.4	11.1	16.2	16

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World's most polluted cities 2019 (PM2.5)

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