The most notable feature of Thursday’s data was the 25-odd ppm drop across the course of the day for all three sites, with winds from the west at both 9 a.m. and 3 p.m., picking up from 6 to 17 km/h between those times (measured by the BoM at Archerfield). This repeats a familiar pattern of wind direction and carbon dioxide concentrations in Brisbane in recent days, westerlies being associated with lower concentrations.
Daily Averages – Phase 2 (See explanation of differences between Phase 1 and Phase 2 data)
For reference, latest monthly average (May 2023) from CSIRO for Kennaook/Cape Grim in NW Tasmania was 415.7 ppm. (Note – these are provisional values, subject to revision folllowing sensor re-calibrations and other checks.)
Date | Petrie Terrace | Chapel Hill | Bellbird Park |
6-Jul-2023 | 434 ppm | 427 ppm | 428 ppm |
5-Jul-2023 | 442 ppm | 441 ppm | 429 ppm |
4-Jul-2023 | 449 ppm | 443 ppm | 429 ppm |
3-Jul-2023 | 428 ppm | 429 ppm | 412 ppm |
2-Jul-2023 | 424 ppm | 425 ppm | 414 ppm |
1-Jul-2023 | 419 ppm | 407 ppm | 405 ppm |
30-Jun-2023 | 414 ppm | 405 ppm | 402 ppm |
29-Jun-2023 | 415 ppm | 409 ppm | 405 ppm |
28-Jun-2023 | 435 ppm | 427 ppm | 428 ppm |
27-Jun-2023 | 426 ppm | 409 ppm | 415 ppm |
26-Jun-2023 | 412 ppm | 402 ppm | 412 ppm |
25-Jun-2023 | 447 ppm | 426 ppm | 429 ppm |
24-Jun-2023 | 427 ppm | 417 ppm | 423 ppm |
23-Jun-2023 | 434 ppm | 427 ppm | 435 ppm |
22-Jun-2023 | 442 ppm | 425 ppm | 436 ppm |
21-Jun-2023 | 443 ppm | 421 ppm | 437 ppm |
20-Jun-2023 | 421 ppm | 414 ppm | 417 ppm |
19-Jun-2023 | 430 ppm | 418 ppm | 419 ppm |
18-Jun-2023 | 436 ppm | 426 ppm | 434 ppm |
17-Jun-2023 | 440 ppm | 429 ppm | 437 ppm |
16-Jun-2023 | 438 ppm | 421 ppm | 433 ppm |
15-Jun-2023 | 433 ppm | 412 ppm | 428 ppm |
14-Jun-2023 | 435 ppm | 425 ppm | 438 ppm |
13-Jun-2023 | 441 ppm | 436 ppm | 442 ppm |
12-Jun-2023 | 442 ppm | 439 ppm | 448ppm |
11-Jun-2023 | 443 ppm | 441 ppm | 451 ppm |
10-Jun-2023 | 446 ppm | 432 ppm | 444 ppm |
9-Jun-2023 | 441 ppm | 428 ppm | 440ppm |