2019 PM2.5 City Scan

	A	B	C	D	E	F	G
1	2019 PM2.5 City Scan
2	This table shows the annual average PM2.5 levels available from data accessed on OpenAQ for the 50 most populous cities in the world.
3	The methodology is available here.
4	Important: The PM2.5 annual average calculations below were performed only with data accessed on OpenAQ. This may not represent the full set of relevant data available in the city or even from the sources sharing data on OpenAQ. There is also considerable variability with the percentage data coverage over the year for many cities. Therefore, these annual averages should not be taken necessarily as representative of a city or as 'official' results from an underlying source.
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6	A Few Overall Stats
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8	% of world's most population cities for which 2019 annual average data were calculable on OpenAQ:	66
9	Average Annual PM2.5 (ug/m3) in Top 50 Cities by population (where PM2.5 data were available on OpenAQ):	39
10	Total Population in Top 50 cities (where PM2.5 data were available on OpenAQ):	428,150,000
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13		City (Listed by Population Size)	Country	PM2.5 Annual Avg (μg/m3)	Stations included in this average	Percent time reporting onto OpenAQ over time-averaged interval	Population (Source: https://population.un.org/wup/Publications/Files/WUP2018-Highlights.pdf)
14	1	Tokyo	Japan	N/A	N/A	N/A	37,400,068
15	2	Delhi	India	102	37	35	28,514,000
16	3	Shanghai	China	35.8	11	89	25,582,000
17	4	São Paulo	Brazil	N/A	N/A	N/A	21,650,000
18	5	Mexico City	Mexico	20.6	7	27	21,581,000
19	6	Cairo	Egypt	N/A	N/A	N/A	20,076,000
20	7	Mumbai	India	43.4	11	33	19,980,000
21	8	Beijing	China	40.5	14	83	19,618,000
22	9	Dhaka	Bangladesh	86.5	1	94	19,578,000
23	10	Osaka	Japan	N/A	N/A	N/A	19,281,000
24	11	New York City	United States	7.7	19	63	18,819,000
25	12	Karachi	Pakistan	44.3	1	56	15,400,000
26	13	Buenos Aires	Argentina	N/A	N/A	N/A	14,967,000
27	14	Chongqing	China	38.8	20	76	14,838,000
28	15	Istanbul	Turkey	N/A	N/A	N/A	14,751,000
29	16	Kolkata	India	52.1	5	38	14,681,000
30	17	Manila	Philippines	N/A	N/A	N/A	13,482,000
31	18	Lagos	Nigeria	N/A	N/A	N/A	13,463,000
32	19	Rio de Janeiro	Brazil	N/A	N/A	N/A	13,293,000
33	20	Tianjin	China	51	15	88.8	13,215,000
34	21	Kinshasa	DR Congo	N/A	N/A	N/A	13,171,000
35	22	Guangzhou	China	29.1	12	90	12,638,000
36	23	Los Angeles	United States	10.1	8	80	12,458,000
37	24	Moscow	Russia	N/A	N/A	N/A	12,410,000
38	25	Shenzhen	China	24	11	89	11,908,000
39	26	Lahore	Pakistan	123.9	1	57	11,738,000
40	27	Bangalore	India	27.1	8	34	11,440,000
41	28	Paris	France	14.3	2	79	10,901,000
42	29	Bogotá	Colombia	12.7	1	91	10,574,000
43	30	Jakarta	Indonesia	46.3	2	92	10,517,000
44	31	Chennai	India	34.3	5	41	10,456,000
45	32	Lima	Peru	30.1	1	92	10,391,000
46	33	Bangkok	Thailand	N/A	N/A	N/A	10,156,000
47	34	Seoul	South Korea	N/A	N/A	N/A	9,963,000
48	35	Nagoya	Japan	N/A	N/A	N/A	9,507,000
49	36	Hyderabad	India	38.2	7	41	9,482,000
50	37	London	United Kingdom	11.7	10	88	9,046,000
51	38	Tehran	Iran	N/A	N/A	N/A	8,896,000
52	39	Chicago	United States	10	10	69	8,864,000
53	40	Chengdu	China	40.4	9	89	8,813,000
54	41	Nanjing	China	38.7	9	89	8,245,000
55	42	Wuhan	China	43.1	10	90	8,176,000
56	43	Ho Chi Minh City	Vietnam	26.6	1	85	8,145,000
57	44	Luanda	Angola	N/A	N/A	N/A	7,774,000
58	45	Ahmedabad	India	56.7	39	1	7,681,000
59	46	Kuala Lumpur	Malaysia	N/A	N/A	N/A	7,564,000
60	47	Xi'an	China	54.9	13	88	7,444,000
61	48	Hong Kong	China	20.4	16	95	7,429,000
62	49	Dongguan	China	31.7	5	88	7,360,000
63	50	Hangzhou	China	35.7	11	90	7,236,000
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