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Johannesburg

Change in NO2: 
-20.59
2020 Avg. NO2: 
6.51 (1e15 molec cm2)

Johannesburg City Trend 2005 2020

Johannesburg-Pretoria Metro OMI data between 2005-2020. There are decreases over the city, including from car emissions, and large decreases just to the east of the city, which are associated with decreases in emissions at a number of coal-burning power plants. The increases are from the reactivation of several shuttered power plants to keep up with electrical demand.

Johannesburg Line Plot 2005 2020

Monthly OMI Nitrogen Dioxide data (top panel) and de-seasonalized data (bottom panel) from 2005 to 2020 for Johannesburg.

Region: 
Africa

Regional Data

Select from the cities below to find data and plots specific to each location. To sort, simply click on one of the column headings.

Region: Europe
City Country Region 2020 Avg. NO2 Change (%) Uncertainty (±%)
Aberdeen United Kingdom Europe 1.53 -33.67 11.00
Amsterdam Netherlands Europe 4.83 -22.17 12.66
Athens Greece Europe 2.72 -50.54 8.48
Barcelona Spain Europe 3.07 -53.20 6.44
Belfast United Kingdom Europe 1.78 -35.80 10.94
Belgrade Serbia Europe 3.32 -11.79 11.67
Berlin Germany Europe 3.58 -30.88 14.26
Birmingham United Kingdom Europe 3.29 -53.06 12.78
Bordeaux France Europe 1.52 -39.24 9.56
Bremen Germany Europe 4.10 -22.20 13.14
Bristol United Kingdom Europe 2.36 -49.41 16.26
Brussels Belgium Europe 5.35 -44.17 10.90
Bucharest Romania Europe 2.96 -19.36 8.54
Budapest Hungary Europe 3.16 -24.70 11.68
Copenhagen Denmark Europe 2.16 -37.40 12.39
Dublin Ireland Europe 1.43 -44.00 13.28
Edinburgh United Kingdom Europe 1.70 -53.98 10.70
Essen Germany Europe 7.50 -40.33 9.01
Frankfurt Germany Europe 4.53 -39.46 12.69
Glasgow United Kingdom Europe 1.84 -42.80 12.67
Hamburg Germany Europe 4.16 -27.82 13.41
Helsinki Finland Europe 1.33 -36.42 11.03
Leeds United Kingdom Europe 3.31 -46.76 16.20
Lisbon Portugal Europe 1.89 -44.18 7.84
Liverpool United Kingdom Europe 2.43 -53.56 21.87
London United Kingdom Europe 4.83 -56.51 11.85
Lyons France Europe 2.20 -44.74 9.47
Madrid Spain Europe 3.88 -54.19 7.44
Manchester United Kingdom Europe 3.87 -56.71 12.80
Marseilles France Europe 1.99 -51.97 7.60
Milan Italy Europe 7.30 -50.43 7.85
Moscow Russia Europe 7.53 -57.02 13.07
Munich Germany Europe 2.94 -25.64 13.26
Naples Italy Europe 2.61 -44.12 8.38
Newcastle on Tyne United Kingdom Europe 2.24 -36.25 13.68
Odessa Ukraine Europe 1.94 -14.70 9.91
Oslo Norway Europe 1.41 -37.45 12.87
Paris France Europe 4.15 -55.90 9.78
Plymouth United Kingdom Europe 1.09 -38.96 16.30
Prague Czech Republic Europe 3.57 -22.28 14.42
Reykjavik Iceland Europe 2.72 0.74 26.53
Rome Italy Europe 2.18 -50.06 6.75
Saint Petersburg Russia Europe 3.52 -29.52 12.69
Sofia Bulgaria Europe 2.05 -25.48 12.46
Stockholm Sweden Europe 1.15 -33.99 11.39
Venice Italy Europe 4.54 -40.83 9.19
Vienna Austria Europe 3.11 -26.29 12.27
Vladivostok Russia Europe 2.34 -8.69 15.61
Warsaw Poland Europe 2.73 -27.38 20.01
Zurich Switzerland Europe 2.96 -24.64 11.74
Region: Africa
City Country Region 2020 Avg. NO2 Change (%) Uncertainty (±%)
Abidjan Ivory Coast Africa 9.86 13.45 9.80
Accra Ghana Africa 1.13 17.96 13.42
Addis Ababa Ethiopia Africa 9.54 21.20 10.54
Algiers Algeria Africa 3.08 22.01 9.99
Cape Town South Africa Africa 1.30 -32.79 8.15
Dakar Senegal Africa 1.26 53.97 15.05
Dar Es Salaam Tanzania Africa 6.09 14.14 15.22
Djibouti Djibouti Africa 6.21 7.17 8.01
Durban South Africa Africa 2.17 -24.20 9.17
Harare Zimbabwe Africa 1.18 16.98 18.30
Johannesburg South Africa Africa 6.51 -20.59 12.07
Kano Nigeria Africa 1.12 20.85 10.36
Khartoum Sudan Africa 1.41 24.84 7.23
Kinshasa Congo (Brazzaville) Africa 1.25 8.36 22.78
Lagos Nigeria Africa 1.72 28.14 14.64
Luanda Angola Africa 1.01 36.51 28.74
Nairobi Kenya Africa 7.82 1.63 13.20
NDjamena Chad Africa 9.38 11.42 11.74
Tananarive Madagascar Africa 9.23 32.57 12.92
Tripoli Libya Africa 1.97 -16.19 6.80
Region: Oceania
City Country Region 2020 Avg. NO2 Change (%) Uncertainty (±%)
Adelaide Australia Oceania 1.18 -30.71 9.32
Auckland New Zealand Oceania 9.09 -29.40 9.87
Brisbane Australia Oceania 1.74 -35.39 6.90
Darwin Australia Oceania 6.52 -19.31 17.08
Hobart Australia Oceania 3.43 -19.63 13.28
Melbourne Australia Oceania 2.37 -51.81 11.28
Perth Australia Oceania 1.21 -26.61 9.03
Sydney Australia Oceania 2.48 -36.70 6.87
Wellington New Zealand Oceania 6.54 -0.46 10.51
Region: South Asia
City Country Region 2020 Avg. NO2 Change (%) Uncertainty (±%)
Ahmedabad India South Asia 3.25 9.14 7.92
Bengaluru India South Asia 1.90 28.96 10.88
Calcutta India South Asia 3.90 -1.79 9.51
Chennai India South Asia 2.39 5.14 12.18
Dhaka Bangladesh South Asia 6.88 77.87 14.55
Hyderabad India South Asia 2.45 44.49 13.93
Islamabad Pakistan South Asia 4.27 60.05 18.02
Karachi Pakistan South Asia 3.49 -3.89 9.31
Lahore Pakistan South Asia 5.54 24.43 16.34
Mumbai India South Asia 2.82 -4.66 9.42
New Delhi India South Asia 5.88 -6.70 11.94
Pune India South Asia 1.73 32.46 12.33
Surat India South Asia 2.83 2.17 7.48
Region: Middle East
City Country Region 2020 Avg. NO2 Change (%) Uncertainty (±%)
Aleppo Syria Middle East 1.81 -42.87 10.25
Alexandria Egypt Middle East 1.83 15.94 10.38
Ankara Turkey Middle East 4.26 -8.61 15.16
Baghdad Iraq Middle East 6.18 48.72 12.63
Beirut Lebanon Middle East 6.11 100.09 15.13
Cairo Egypt Middle East 5.21 8.10 8.37
Damascus Syria Middle East 2.64 -36.25 8.30
Gaziantep Turkey Middle East 2.14 63.97 13.51
Homs Syria Middle East 2.35 7.06 9.35
Istanbul Turkey Middle East 5.91 -16.33 11.12
Jerusalem Israel Middle East 2.49 -29.20 7.09
Kabul Afghanistan Middle East 2.18 76.73 14.38
Kirkuk Iraq Middle East 3.02 54.53 15.01
Kuwait City Kuwait Middle East 6.69 -6.44 7.01
Mecca Saudi Arabia Middle East 2.82 -12.62 8.57
Mosul Iraq Middle East 3.51 57.89 13.47
Riyadh Saudi Arabia Middle East 6.28 -35.62 9.62
Tehran Iran Middle East 1.39 12.11 11.66
Region: South and Central America
City Country Region 2020 Avg. NO2 Change (%) Uncertainty (±%)
Asuncion Paraguay South and Central America 1.12 3.65 19.80
Belem Brazil South and Central America 5.70 -12.91 12.65
Belo Horizonte Brazil South and Central America 1.50 -16.19 9.94
Bogota Colombia South and Central America 1.20 1.70 17.16
Buenos Aires Argentina South and Central America 4.97 -39.81 10.78
Caracas Venezuela South and Central America 1.73 -42.93 8.79
Cayenne French Guiana South and Central America 1.63 14.63 17.70
Cordoba Argentina South and Central America 1.25 9.72 9.35
Georgetown Guyana South and Central America 2.04 45.75 19.67
Guatemala City Guatemala South and Central America 1.08 9.10 10.80
Guayaquil Ecuador South and Central America 2.02 -32.79 16.45
Havana Cuba South and Central America 1.19 8.20 9.13
Iquique Chile South and Central America 3.55 -11.11 12.78
Kingston Jamaica South and Central America 1.11 -14.15 7.61
La Paz Bolivia South and Central America 7.07 61.05 17.66
Leon Mexico South and Central America 2.04 2.32 6.97
Lima Peru South and Central America 2.53 17.99 10.92
Medellin Colombia South and Central America 9.08 27.38 11.78
Monclova Mexico South and Central America 1.94 -10.91 6.94
Montevideo Uruguay South and Central America 1.34 -3.23 15.64
Panama City Panama South and Central America 1.16 -8.30 11.35
Paramaribo Suriname South and Central America 2.11 16.36 14.50
Porto Alegre Brazil South and Central America 1.26 -11.09 8.25
Quito Ecuador South and Central America 8.43 -4.79 17.05
Recife Brazil South and Central America 5.79 9.39 9.23
Rio de Janeiro Brazil South and Central America 2.77 -21.15 8.67
Salvador Brazil South and Central America 8.16 11.39 12.02
Santiago Chile South and Central America 5.88 -3.14 12.45
Sao Paulo Brazil South and Central America 4.71 -37.39 8.99
Region: North America
City Country Region 2020 Avg. NO2 Change (%) Uncertainty (±%)
Atlanta United States North America 2.98 -56.01 6.30
Boston United States North America 3.46 -46.20 7.46
Chicago United States North America 5.70 -50.95 7.62
Chihuahua Mexico North America 1.44 -8.73 7.38
Dallas Fort Worth United States North America 3.31 -34.54 6.63
Detroit United States North America 4.63 -47.69 8.32
Guadalajara Mexico North America 2.73 -27.28 6.96
Houston United States North America 3.92 -32.14 7.74
Los Angeles United States North America 6.88 -64.59 4.77
Mazatlan Mexico North America 8.39 -5.17 9.06
Mexico City Mexico North America 7.00 -43.56 7.99
Miami United States North America 1.54 -38.33 7.31
Monterrey Mexico North America 5.29 -7.34 8.60
New York United States North America 7.75 -56.00 6.38
Philadelphia United States North America 4.64 -57.04 6.02
Phoenix Mesa United States North America 2.88 -58.92 5.80
San Francisco / San Jose United States North America 2.64 -52.42 7.70
Toronto Canada North America 5.04 -34.58 9.21
Veracruz Mexico North America 9.58 -4.63 11.16
Washington D.C. United States North America 3.83 -52.55 5.73
Region: Southeast Asia
City Country Region 2020 Avg. NO2 Change (%) Uncertainty (±%)
Bandung Indonesia Southeast Asia 8.81 -8.65 9.33
Bangkok Thailand Southeast Asia 4.71 -18.80 11.05
Ho Chi Minh City Vietnam Southeast Asia 2.12 30.34 10.30
Jakarta Indonesia Southeast Asia 3.24 -43.00 7.33
Kuala Lumpur Malaysia Southeast Asia 2.49 -22.18 10.22
Manila Philippines Southeast Asia 2.09 7.60 8.40
Port Moresby Papua New Guinea Southeast Asia 2.98 43.11 16.28
Singapore Singapore Southeast Asia 3.88 -20.33 10.73
Surabaya Indonesia Southeast Asia 2.42 -9.97 6.95
Yangoon Myanmar Southeast Asia 1.23 55.83 13.43
Region: East Asia
City Country Region 2020 Avg. NO2 Change (%) Uncertainty (±%)
Beijing China East Asia 1.25 -39.46 8.53
Busan South Korea East Asia 6.86 -20.50 8.54
Chengdu China East Asia 8.17 13.72 16.79
Chongqing China East Asia 5.53 12.92 17.94
Daesan South Korea East Asia 6.05 -4.26 13.54
Dalian China East Asia 8.13 -25.34 13.52
Dongguan China East Asia 9.64 -52.04 9.10
Fukuoka Japan East Asia 3.64 -36.64 8.84
Fuzhou China East Asia 4.06 -20.48 12.52
Guangzhou China East Asia 1.17 -46.41 11.29
Hangzhou China East Asia 1.26 -36.36 11.64
Harbin China East Asia 4.16 -35.07 20.36
Hong Kong China East Asia 7.50 -51.19 9.94
Nagasaki Japan East Asia 1.99 -12.77 11.52
Nagoya Japan East Asia 5.73 -50.08 7.03
Nanjing China East Asia 1.13 -33.11 11.78
Osaka Japan East Asia 8.64 -46.20 7.33
Qingdao China East Asia 1.12 -26.52 10.44
Quanzhou China East Asia 4.53 -7.93 15.43
Seoul South Korea East Asia 1.29 -33.19 9.27
Shanghai China East Asia 1.32 -44.94 7.91
Shenyang China East Asia 9.46 -20.95 15.08
Shenzhen China East Asia 9.43 -55.17 7.89
Suzhou China East Asia 1.47 -23.56 11.06
Taipei China East Asia 4.19 -41.48 9.20
Tianjin China East Asia 1.37 -19.91 11.43
Tokyo Japan East Asia 9.93 -53.27 6.41
Wuhan China East Asia 1.08 -9.08 13.14
Xian China East Asia 1.03 -15.52 14.09
Zhengzhou China East Asia 1.08 -41.59 12.26

* Units = x1015 molecules/cm2