An official website of the United States government Here's how you know
A .gov website belongs to an official government organization in the United States.
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Use this web page to find specific data files available from the public ftp file archive of the ESRL Global Monitoring Laboratory. Alternatively, you can check our Data by research program page for specific areas of data that can be downloaded. Click on the icons ( or ) under the 'Data' table heading in the dataset description boxes to either download the data file desired, or take you to the appropriate directory on the ftp server, where you can select specific data files.
| Dataset Number | Site | Category | Name | Type | Frequency | Year | Data | Readme |
|---|---|---|---|---|---|---|---|---|
|
151 |
Barrow Atmospheric Baseline Observatory, United States (BRW) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-142b (hcfc142b) |
Insitu | Daily Averages | Multiple | Download | |
|
152 |
Barrow Atmospheric Baseline Observatory, United States (BRW) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-142b (hcfc142b) |
Insitu | Hourly Averages | Multiple | Download | |
|
153 |
Barrow Atmospheric Baseline Observatory, United States (BRW) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-142b (hcfc142b) |
Insitu | Monthly Averages | Multiple | Download | |
|
154 |
Barrow Atmospheric Baseline Observatory, United States (BRW) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-22 (hcfc22) |
Insitu | Daily Averages | Multiple | Download | |
|
155 |
Barrow Atmospheric Baseline Observatory, United States (BRW) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-22 (hcfc22) |
Insitu | Hourly Averages | Multiple | Download | |
|
156 |
Barrow Atmospheric Baseline Observatory, United States (BRW) Continuous in-situ CATS GC measurements. |
Halocompounds | HCFC-22 (hcfc22) |
Insitu | Monthly Averages | Multiple | Download | |
|
157 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Acetylene (C2H2) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
158 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Ethane (C2H6) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
159 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Propane (C3H8) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
160 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Benzene (C6H6) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
161 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | PFC-14 (CF4) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
162 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | CFC-115 (CClF2CF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
163 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | CFC-11 (CCl3F (ion 103)) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
164 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | CFC-13 (CClF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
165 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Methylene Bromide (CH2Br2) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
166 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Methyl Chloroform (97) (CH3CCl3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
167 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Chloroform (CHCl3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
168 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | ethylene dichloride (1,2 DCE) (CH2ClCH2Cl) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
169 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Halon-1301 (CF3Br) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
170 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Halon-2402 (CBrF2CBrF2) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
171 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | HCFC-133a (CH2ClCF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
172 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | HCFC-22 (CHF2Cl) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
173 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | HFC-125 (CHF2CF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
174 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | HFC-134a (CH2FCF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
175 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | HFC-143a (CH3CF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
176 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | HFC-152a (CH3CHF2) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
177 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | HFC-227ea (CF3CHFCF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
178 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | HFC-236fa (CF3CH2CF3) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
179 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | HFC-32 (CH2F2) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
180 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | PFC-218 (C3F8) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
181 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Perfluorotriethylamine (PFTEA) ((C2F5)3N) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
182 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Perfluorotripropylamine (PFTPA) ((C3F7)3N) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
183 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | Isobutane (i-C4H10) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
184 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | isopentane (i-C5H12) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
185 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | n-Butane (n-C4H10) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
186 |
Brentwood, Maryland, United States (BWD) Air samples collected in glass flasks. |
Halocompounds | n-Pentane (n-C5H12) |
Surface PFP | Discrete | Multiple | Download | Readme |
|
187 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | Acetylene (C2H2) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
188 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | Ethane (C2H6) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
189 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | Propane (C3H8) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
190 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | Benzene (C6H6) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
191 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | PFC-14 (CF4) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
192 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | CFC-115 (CClF2CF3) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
193 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | CFC-11 (CCl3F (ion 103)) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
194 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | CFC-13 (CClF3) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
195 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | Methylene Bromide (CH2Br2) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
196 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | Methyl Chloroform (97) (CH3CCl3) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
197 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | Chloroform (CHCl3) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
198 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | ethylene dichloride (1,2 DCE) (CH2ClCH2Cl) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
199 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | Halon-1301 (CF3Br) |
Aircraft PFP | Discrete | Multiple | Download | Readme |
|
200 |
Briggsdale, Colorado, United States (CAR) Air samples collected in glass flasks. |
Halocompounds | Halon-2402 (CBrF2CBrF2) |
Aircraft PFP | Discrete | Multiple | Download | Readme |