Table 7.

Indicatory air pollutants values for USA, Brazil, Mexico, Canada, Chile and Germany.

Year	Cities	PM2.5		PM10		SO2		CO		NO2		O3
		Rg.	Av.	Rg.	Av.	Rg.	Av.	Rg.	Av.	Rg.	Av.	Rg.	Av.
2020	Washington	9–67	37.37	4–43	16.76	1–2	1.02	1–5	1.9	1–13	5.26	11–44	31.21
	Los Angeles	12–73	35.96	10–31	22.43	–	–	1–4	1.55	1–12	5.1	16–79	42.48
	Sao Paulo	19–101	51.33	–	–	–	–	–	–	–	–	12–56	30.01
	Ciudad de Mexico	46–128	78.78	23–63	41.34	1–22	4.15	8–17	10.83	11–36	21.85	18–101	68.23
	Guadalajara	–	–	15–48	30.37	–	–	1–4	2.19	6–22	13.62	19–78	45.25
	Toronto	13–61	33.56	–	–	–	–	1–3	1.33	4–28	12.11	21–49	31.33
	Montreal	8–53	24.94	–	–	5–12	5.73	–	–	3–16	6.85	16–37	24.51
	Santiago	5–150	68.35	39–96	68.14	–	–	1–25	7.08	6–36	18.72	5–53	29.91
	Berlin	–	–	8–60	27.01	–	–	–	–	5–33	18.71	20–55	33.45
	Munich	–	–	8–62	22.79	1–2	1.42	–	–	2–43	21.66	20–59	38.15
2019	Washington	9–65	28.28	2–36	15.02	1–2	1.05	1–8	2.69	–	–	8–45	34.4
	Los Angeles	13–70	38.95	10–39	21.57	–	–	1–5	2.72	1–15	6.71	27–59	42.43
	Sao Paulo	22–101	56.81	–	–	–	–	–	–	–	–	5–70	27.56
	Ciudad de Mexico	38–161	89.39	7–80	49.46	1–24	7	4–12	7.33	12–45	28.53	4–113	69.94
	Guadalajara	–	–	20–57	34.89	–	–	1–23	3.73	8–45	18.49	20–70	45.11
	Toronto	12–79	32.32	–	–	1–3	1.86	1–4	2.24	4–28	12.49	22–40	31.85
	Montreal	7–58	27.95	–	–	5–30	7.03	6–7	6.01	4–21	9.63	–	–
	Santiago	5–150	81.6	19–138	74.8	–	–	1–31	10.55	16–85	35.7	3–51	21.56
	Berlin	–	–	9–62	26.2	–	–	–	–	12–33	22.35	11–54	32.92
	Munich	–	–	8–45	23	3–41	29.01	–	–	12–43	25.71	20–52	35.83

Note: Rg. = Ranges, Av. = Average.