Atmospheric Trace Gases

Below is an overview of all atmospheric trace gas parameters. The abbreviation AOD stands for Aerosol Optical Depth.

• Carbon: Black Carbon AOD 550nm | Black Carbon Hydrophil | Black Carbon Hydrophob | Carbone Monoxide
• Hydrogen: Hydroxyl Radikal
• Nitrogen Oxides: Nitrogen Dioxide | Nitrogen Monoxide
• Sulfur: Sulfur Dioxide | Sulfate AOD 550nm
• Ozone: Ozone
• Total column of trace gases: Methane | Nitrogen Dioxide | Nitrogen Monoxide | Ozone | Sulfur Dioxide
• Air Quality: Trace Gas Air Quality | Total Air Quality

Each parameter is explained in more detail below.

Black Carbon Aerosol Optical Depth

Gives the black carbon aerosol optical depth at 550nm.

black_carbon_aod_550nm:idx

Examples

• Show the AOD for the entire world

  https://api.meteomatics.com/2025-06-30T00:00:00Z/black_carbon_aod_550nm:idx/90,-180_-90,180:1000x6001/html_map

  

• The data showed in the csv format containing the AOD for the next four days in the ocean.

  https://api.meteomatics.com/2025-06-30T00:00:00ZP4D:P1D/black_carbon_aod_550nm:idx/70,-15/csv

  validdate;black_carbon_aod_550nm:idx
  2017-08-25T00:00:00Z;0.038
  2017-08-26T00:00:00Z;0.036
  2017-08-27T00:00:00Z;0.011
  2017-08-28T00:00:00Z;0.003
  2017-08-29T00:00:00Z;0.004

Hydrophilic Black Carbon Concentration

Hydrophilic black carbon concentration at the surface in units of [μg/m³].

black_carbon_hydrophil:ugm3

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/black_carbon_hydrophil:ugm3/90,-180_-90,180:1000x600/html_map

  

• https://api.meteomatics.com/2025-06-30T00:00:00Z/black_carbon_hydrophil:ugm3/70,-15_35,30:10,9/csv

  validdate;2018-02-20 00:00:00
  parameter;black_carbon_hydrophil:ugm3
  data;-15;-6;3;12;21;30
  70;0.001;0.001;0.001;0.005;0.005;0.011
  65;0.004;0.006;0.004;0.018;0.104;0.016
  60;0.014;0.003;0.083;0.109;0.166;0.321
  55;0.009;0.033;0.267;0.221;0.302;0.417
  50;0.012;0.023;0.367;0.478;0.41;0.29
  45;0.019;0.013;0.134;0.267;0.151;0.253
  40;0.003;0.187;0.05;0.043;0.093;0.072
  35;0.041;1.385;0.457;0.048;0.015;0.002

Hydrophobic Black Carbon Concentration

Hydrophobic black carbon concentration at surface in units [μg/m³].

black_carbon_hydrophob:ugm3

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/black_carbon_hydrophob:ugm3/90,-180_-90,180:1000x600/html_map

  

• https://api.meteomatics.com/2025-06-30T00:00:00Z/black_carbon_hydrophob:ugm3/70,-15_35,30:9,25/json

  {"version":"3.0","user":"api-test","dateGenerated":"2018-02-28T10:13:40Z","status":"OK","data":
  [{"parameter":"black_carbon_hydrophob:ugm3","coordinates":
  [{"lat":35,"lon":-15,"dates":[{"date":"2018-02-28T00:00:00Z","value":0.011}]},
  {"lat":35,"lon":10,"dates":[{"date":"2018-02-28T00:00:00Z","value":0.529}]},
  {"lat":44,"lon":-15,"dates":[{"date":"2018-02-28T00:00:00Z","value":0.131}]},
  {"lat":44,"lon":10,"dates":[{"date":"2018-02-28T00:00:00Z","value":0.236}]},
  {"lat":53,"lon":-15,"dates":[{"date":"2018-02-28T00:00:00Z","value":0.092}]},
  {"lat":53,"lon":10,"dates":[{"date":"2018-02-28T00:00:00Z","value":0.158}]},
  {"lat":62,"lon":-15,"dates":[{"date":"2018-02-28T00:00:00Z","value":0.053}]},
  {"lat":62,"lon":10,"dates":[{"date":"2018-02-28T00:00:00Z","value":0.014}]}]}]}

Carbon Monoxide Concentration

Carbon monoxide concentration at surface in units of [μg/m³].

co:ugm3

Examples

• Show the evolution of the carbon monoxide concentration over a period of two days

  https://api.meteomatics.com/2025-06-30T00:00:00ZP2D:PT1H/co:ugm3/47.412164,9.340652/html

  

• https://api.meteomatics.com/2025-06-30T00:00:00Z/co:ugm3/90,-180_-90,180:1000x600/html_map

  

• https://api.meteomatics.com/2025-06-30T00:00:00Z/co:ugm3/70,-15_35,30:4x2/json

  {"version":"3.0","user":"api-test","dateGenerated":"2018-02-21T14:06:00Z","status":"OK","data":
  [{"parameter":"co:ugm3","coordinates":
  [{"lat":35,"lon":-15,"dates":[{"date":"2018-02-21T00:00:00Z","value":128.508}]},
  {"lat":35,"lon":0,"dates":[{"date":"2018-02-21T00:00:00Z","value":142.227}]},
  {"lat":35,"lon":15,"dates":[{"date":"2018-02-21T00:00:00Z","value":157.87}]},
  {"lat":35,"lon":30,"dates":[{"date":"2018-02-21T00:00:00Z","value":143.111}]},
  {"lat":70,"lon":-15,"dates":[{"date":"2018-02-21T00:00:00Z","value":137.269}]},
  {"lat":70,"lon":0,"dates":[{"date":"2018-02-21T00:00:00Z","value":131.778}]},
  {"lat":70,"lon":15,"dates":[{"date":"2018-02-21T00:00:00Z","value":130.019}]},
  {"lat":70,"lon":30,"dates":[{"date":"2018-02-21T00:00:00Z","value":129.45}]}]}]}

Hydroxyl Radikal

The hydroxyl radical (OH) is the major oxidizing chemical in the atmosphere, destroying about 3.7 Gt of trace gases, including CH4 and all Hydrofluorocarbons (HFCs) and hydrochlorofluorocarbons (HCFCs), each year (Ehhalt, 1999). This parameter is given in the units of .

oh:pgm3

Example

• https://api.meteomatics.com/2025-06-30T12:00:00Z/oh:pgm3/Europe:0.05,0.05/html_map

  

Nitrogen Dioxide Concentration

Nitrogen dioxide concentration at surface in units of [μg/m³].

no2:ugm3

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/no2:ugm3/90,-180_-90,180:1000x600/html_map

  

• https://api.meteomatics.com/2025-06-30T00:00:00Z/no2:ugm3/90,-180_-90,180:6x6/csv

  validdate;2018-02-21 00:00:00
  parameter;no2:ugm3
  data;-180;-108;-36;36;108;180
  90;0.005;0.005;0.005;0.005;0.005;0.005
  54;0.997;0.366;0.039;8.52;1.278;0.997
  18;0.02;0.087;0.024;0.892;0.091;0.02
  -18;0.002;0.008;0.008;0.815;0.015;0.002
  -54;0.003;0.002;0.002;0.002;0.001;0.003
  -90;0;0;0;0;0;0

Nitrogen Monoxide Concentration

Nitrogen monoxide concentration at surface in units of [μg/m³].

no:ugm3

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/no:ugm3/46,96_21,134:1000x600/html_map

  

Sulfur Dioxide Concentration

Sulfur dioxide concentration at surface in units of [μg/m³].

so2:ugm3

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/so2:ugm3/90,-180_-90,180:1000x600/html_map

  

• https://api.meteomatics.com/2025-06-30T00:00:00Z/so2:ugm3/70,-15/json

  {"version":"3.0","user":"api-test","dateGenerated":"2018-02-07T13:20:56Z","status":"OK","data":
  [{"parameter":"so2:ugm3","coordinates":[{"lat":70,"lon":-15,"dates":
  [{"date":"2018-02-05T00:00:00Z","value":0.105}]}]}]}

Sulfate Aerosol Optical Depth

Sulfate aerosol optical depth at 550 nm.

sulphate_aod_550nm:idx

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/sulphate_aod_550nm:idx/90,-180_-90,180:1000x600/html_map

  

• Show the evolution of the sulfate AOD over a period of three days

  https://api.meteomatics.com/2025-06-30T00:00:00ZP3D:PT3H/sulphate_aod_550nm:idx/47.412164,9.340652/html

  

• https://api.meteomatics.com/2025-06-30T00:00:00ZP3D:PT3H/sulphate_aod_550nm:idx/47.412164,9.340652/csv

  validdate;sulphate_aod_550nm:idx
  2018-02-05T00:00:00Z;0.005
  2018-02-05T03:00:00Z;0.004
  2018-02-05T06:00:00Z;0.003
  2018-02-05T09:00:00Z;0.004
  2018-02-05T12:00:00Z;0.005
  2018-02-05T15:00:00Z;0.008
  2018-02-05T18:00:00Z;0.006
  2018-02-05T21:00:00Z;0.007

Ozone Concentration

Ozone concentration at surface in units of [μg/m³].

o3:ugm3

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/o3:ugm3/europe:1000x600/html

  

Total column of trace gases

Methane

Total column content of methane in units of [μg/m²].

tc_ch4:ugm2

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/tc_ch4:ugm2/90,-180_-90,180:1000x600/html

  

• Show the total column content of methane for the next three days.

  https://api.meteomatics.com/2025-06-30T00:00:00ZP3D:PT3H/tc_ch4:ugm2/47.412164,9.340652/html

  

• https://api.meteomatics.com/2025-06-30T00:00:00ZP3D:PT3H/tc_ch4:ugm2/47.412164,9.340652/json

  {"version":"3.0","user":"api-test“,“dateGenerated":"2018-02-07T13:27:03Z","status":"OK","data":
  [{"parameter":"tc_ch4:ugm2","coordinates":[{"lat":47.4122,"lon":9.34065,"dates":
  [{"date":"2018-02-05T00:00:00Z","value":9423599.578},{"date":"2018-02-05T03:00:00Z","value":9433316.998},
  {"date":"2018-02-05T06:00:00Z","value":9434212.931},{"date":"2018-02-05T09:00:00Z","value":9438452.311},
  {"date":"2018-02-05T12:00:00Z","value":9444270.283},{"date":"2018-02-05T15:00:00Z","value":9436296.299},
  {"date":"2018-02-05T18:00:00Z","value":9429648.519},{"date":"2018-02-05T21:00:00Z","value":9417010.471},
  {"date":"2018-02-06T00:00:00Z","value":9406719.357}]}]}]}

Nitrogen Dioxide

Total column content of nitrogen dioxide in units of [μg/m²].

tc_no2:ugm2

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/tc_no2:ugm2/90,-180_-90,180:1000x600/html_map

  

• https://api.meteomatics.com/2025-06-30T00:00:00Z/tc_no2:ugm2/90,-180_-90,180:6x6/csv

  validdate;2018-02-21 00:00:00
  parameter;tc_no2:ugm2
  data;-180;-108;-36;36;108;180
  90;186.573;186.573;186.573;186.573;186.573;186.573
  54;680.858;1006.574;897.965;3722.696;1251.57;680.858
  18;352.654;460.062;1150.776;989.766;507.661;352.654
  -18;287.731;378.084;704.229;1154.283;391.457;287.731
  -54;149.961;243.268;440.992;353.717;137.089;149.961
  -90;121.082;121.082;121.082;121.082;121.082;121.082

Nitrogen Monoxide

Total column content of nitrogen monoxide in units of [μg/m²].

tc_no:ugm2

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/tc_no:ugm2/90,-180_-90,180:1000x600/html_map

  

Ozone

Total column content of ozone in units of [μg/m²].

tc_o3:ugm2

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/tc_o3:ugm2/90,-180_-90,180:1000x600/html_map

  

• Show the evolution of the total ozone column content for two days.

  https://api.meteomatics.com/2025-06-30T00:00:00ZP2D:PT1H/tc_o3:ugm2/47.412164,9.340652/html

  

• https://api.meteomatics.com/2025-06-30T00:00:00ZP1D:PT3H/tc_o3:ugm2/47.412164,9.340652/csv

  validdate;tc_o3:ugm2
  2018-02-05T00:00:00Z;8101143.874
  2018-02-05T03:00:00Z;8003459.312
  2018-02-05T06:00:00Z;8037665.859
  2018-02-05T09:00:00Z;8127233.945
  2018-02-05T12:00:00Z;8203518.577
  2018-02-05T15:00:00Z;8325079.456
  2018-02-05T18:00:00Z;8360913.023
  2018-02-05T21:00:00Z;8431591.094
  2018-02-06T00:00:00Z;8447664.79

Sulfur Dioxide

Total column content of sulfur dioxide in units of [μg/m²].

tc_so2:ugm2

Examples

• https://api.meteomatics.com/2025-06-30T00:00:00Z/tc_so2:ugm2/90,-180_-90,180:1000x600/html_map

  

• Get the total column content of sulfur dioxide for the next day in three hour steps in the json format.

  https://api.meteomatics.com/2025-06-30T00:00:00ZP1D:PT3H/tc_so2:ugm2/47.412164,9.340652/json

  {"version":"3.0","user":"api-test","dateGenerated":"2017-08-25T09:03:43Z","status":"OK","data":
  [{"parameter":"tc_so2:ugm2","coordinates":[{"lat":47.4122,"lon":9.34065,"dates":
  [{"date":"2017-08-25T00:00:00Z","value":629.487},{"date":"2017-08-25T03:00:00Z","value":579.359},
  {"date":"2017-08-25T06:00:00Z","value":606.636},{"date":"2017-08-25T09:00:00Z","value":687.316},
  {"date":"2017-08-25T12:00:00Z","value":708.604},{"date":"2017-08-25T15:00:00Z","value":640.072},
  {"date":"2017-08-25T18:00:00Z","value":617.721},{"date":"2017-08-25T21:00:00Z","value":726.931},
  {"date":"2017-08-26T00:00:00Z","value":960.146}]}]}]}

Trace Gas Air Quality

Air quality indices for trace gases. The index returns an integer from 0 (Good) to 5 (Extremely Poor).

air_quality_no2:idx
air_quality_o3:idx
air_quality_so2:idx

The index is defined using concentration thresholds from the European Environment Agency. The concentrations are given in [μg/m³].

	Good [0]	Fair [1]	Moderate [2]	Poor [3]	Very Poor [4]	Extremely Poor [5]
NO2	0-40	40-90	90-120	120-230	230-340	340-1000
O3	0-50	50-100	100-130	130-240	240-380	380-800
SO2	0-100	100-200	200-350	350-500	500-750	750-1250

Total Air Quality

The total air quality accounts for the particulate matter and trace gas concentration. It returns the maximum of air_quality_pm2p:idx, air_quality_pm10:idx, air_quality_no2:idx, air_quality_o3:idx and air_quality_so2:idx.

air_quality:idx