Ninth day of publishing Brisbane CO2 data. In contrast to the day before, Monday’s pre-dawn values were lower than usual at each of the sites. We’re growing the network – if you’d like to host or sponsor a sensor – leave us a message.
Daily Averages
For reference, latest monthly average (Nov 2022) from CSIRO for Kennaook/Cape Grim in NW Tasmania was 415.4 ppm. (Note – these are provisional values, subject to revision folllowing sensor re-calibrations and other checks.)
| DATE | Petrie Terrace | Chapel Hill | Bellbird Park |
| 9 Jan 2023 | 447 ppm | 427 ppm | 426 ppm |
| 8 Jan 2023 | 450 ppm | 434 ppm | 439 ppm |
| Week One 2023 (average +/- SD) | 453 +/- 7 ppm | 435 +/- 4 ppm | 432 +/- 8 ppm |
| 7 Jan 2023 | 449 ppm | 436 ppm | 439 ppm |
| 6 Jan 2023 | 450 ppm | 435 ppm | 429 ppm |
| 5 Jan 2023 | 468 ppm | 443 ppm | 437 ppm |
| 4 Jan 2023 | 454 ppm | 431 ppm | 440 ppm |
| 3 Jan 2023 | 450 ppm | 436 ppm | 436 ppm |
| 2 Jan 2023 | 448 ppm | 431 ppm | 423 ppm |
| 1 Jan 2023 | 451 ppm | 436 ppm | 422 ppm |