Month: March 2023

On Wednesday there were fairly large drops (averaging 15 ppm across the three urban sites) from the previous day’s values.  This is evident in the much lower ending values than starting values in the second graph. There was an unusual dip starting well before dawn that may be associated with a weather system passing through the city.  A power outage stopped the O’Reilly’s monitor in the late afternoon, but it has now been restarted.  (Showing 21 day average up to 29 March in order to show all four sites).

We’re growing the network – if you’d like to host or sponsor a sensor – leave us a message.  As we add more sensor sites, comparisons across the urban area will become more robust and informative about Brisbane’s Carbon dioxide emissions.

Daily Averages

For reference, latest monthly average (Feb 2023) from CSIRO for Kennaook/Cape Grim in NW Tasmania was 415.1 ppm. (Note – these are provisional values, subject to revision folllowing sensor re-calibrations and other checks.)

DATE	Petrie Terrace	Chapel Hill	Bellbird Park	O’Reilly’s
30 Mar2023	465 ppm	433 ppm	437 ppm	TBA
29 Mar 2023	482 ppm	451 ppm	446 ppm	417 ppm
28 Mar 2023	476 ppm	446 ppm	450ppm	423 ppm
27 Mar 2023	470 ppm	443 ppm	445 ppm	425 ppm
26 Mar 2023	464 ppm	439 ppm	435 ppm	417 ppm
25 Mar 2023	467 ppm	446 ppm	437 ppm	TBA
24 Mar 2023	475 ppm	443ppm	456 ppm	TBA
23 Mar 2023	472 ppm	444 ppm	428 ppm	TBA
22 Mar 2023	463 ppm	435 ppm	423 ppm	TBA
21 Mar 2023	459 ppm	431 ppm	425 ppm	TBA
20 Mar 2023	464 ppm	441 ppm	439 ppm	TBA
19 Mar 2023	467 ppm	—	445 ppm	TBA
18 Mar 2023	471 ppm	448 ppm	443 ppm	TBA
17 Mar 2023	477 ppm	448 ppm	443 ppm	TBA
16 Mar 2023	484 ppm	455 ppm	470 ppm	TBA
15 Mar 2023	468 ppm	446 ppm	444 ppm	TBA
14 Mar 2023	461 ppm	443 ppm	446 ppm	413 ppm
13 Mar 2023	—	447 ppm	440 ppm
12 Mar 2023	—	452 ppm	446 ppm
11 Mar 2023	—	447 ppm	449 ppm
10 Mar 2023	—	443 ppm	420 ppm
9 Mar 2023	470 ppm	435 ppm	436 ppm
8 Mar 2023	461 ppm	427 ppm	418 ppm
7 Mar 2023	452 ppm	424 ppm	427 ppm
6 Mar 2023	454 ppm	428 ppm	432 ppm
5 Mar 2023	450 ppm	426 ppm	430 ppm
4 Mar 2023	449 ppm	425 ppm	424 ppm
3 Mar 2023	456 ppm	432 ppm	427 ppm
2 Mar 2023	465 ppm	434 ppm	423 ppm
1 Mar 2023	452 ppm	425ppm	426 ppm
28 Feb 2023	453 ppm	429 ppm	429 ppm
27 Feb 2023	458 ppm	432 ppm	437 ppm
26 Feb 2023	455 ppm	434 ppm	440 ppm
25 Feb 2023	454 ppm	432 ppm	435 ppm
24 Feb 2023	452 ppm	428 ppm	423 ppm
23 Feb 2023	454 ppm	428 ppm	421 ppm
22 Feb 2023	457 ppm	433 ppm	425 ppm
21 Feb 2023	463 ppm	437ppm	429 ppm
20 Feb 2023	460 ppm	438 ppm	425 ppm
19 Feb 2023	459 ppm	434 ppm	430 ppm
18 Feb 2023	463 ppm	436 ppm	438 ppm
17 Feb 2023	466 ppm	437 ppm	443 ppm
16 Feb 2023	459 ppm	435 ppm	438 ppm
15 Feb 2023	459 ppm	430 ppm	426 ppm
14 Feb 2023	457 ppm	431 ppm	419 ppm
13 Feb 2023	453 ppm	429 ppm	418 ppm
12 Feb 2023	450 ppm	428 ppm	436 ppm
11 Feb 2023	448 ppm	428 ppm	435 ppm
10 Feb 2023	451 ppm	429ppm	418 ppm
9 Feb 2023	451 ppm	428ppm	413 ppm
8 Feb 2023	452 ppm	429 ppm	416 ppm
7 Feb 2023	454 ppm	434 ppm	434 ppm
6 Feb 2023	454 ppm	436 ppm	425 ppm
5 Feb 2023	454 ppm	447 ppm	433 ppm
4 Feb 2023	456 ppm	451 ppm	451 ppm
3 Feb 2023	464 ppm	438 ppm	442 ppm
2 Feb 2023	451 ppm	426 ppm	418 ppm
1 Feb 2023	460 ppm	—	428 ppm
31 Jan 2023	459 ppm	—	434 ppm
30 Jan 2023	454 ppm	432 ppm	432 ppm
29 Jan 2023	455 ppm	437 ppm	450 ppm
28 Jan 2023	470 ppm	451 ppm	449 ppm
27 Jan 2023	469 ppm	452 ppm	445 ppm
26 Jan 2023	470 ppm	451 ppm	449 ppm
25 Jan 2023	470 ppm	440 ppm	436 ppm
24 Jan 2023	460 ppm	436 ppm	433 ppm
23 Jan 2023	455 ppm	435 ppm	441 ppm
22 Jan 2023	448 ppm	433 ppm	433 ppm
21 Jan 2023	450 ppm	431 ppm	425 ppm
20 Jan 2023	453 ppm	431 ppm	421 ppm
19 Jan 2023	451 ppm	430 ppm	436 ppm
18 Jan 2023	451 ppm	431 ppm	421 ppm
17 Jan 2023	453 ppm	436 ppm	422 ppm
16 Jan 2023	460 ppm	440 ppm	425 ppm
15 Jan 2023	456 ppm	436 ppm	432 ppm
14 Jan 2023	452 ppm	431 ppm	422 ppm
13 Jan 2023	455 ppm	433ppm	422 ppm
12 Jan 2023	452 ppm	433 ppm	433 ppm
11 Jan 2023	453 ppm	433 ppm	442 ppm
10 Jan 2023	453 ppm	435 ppm	424 ppm
9 Jan 2023	447 ppm	427 ppm	426 ppm
8 Jan 2023	450 ppm	434 ppm	439 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

On Tuesday the average carbon dioxide concentration at Petrie Terrace (482 ppm and peaking above 500 ppm) was the second highest so far this year.  The average for the three urban sites (at 460 ppm) also reached its second highest level. 

We’re growing the network – if you’d like to host or sponsor a sensor – leave us a message.  As we add more sensor sites, comparisons across the urban area will become more robust and informative about Brisbane’s Carbon dioxide emissions.

Daily Averages

For reference, latest monthly average (Feb 2023) from CSIRO for Kennaook/Cape Grim in NW Tasmania was 415.1 ppm. (Note – these are provisional values, subject to revision folllowing sensor re-calibrations and other checks.)

DATE	Petrie Terrace	Chapel Hill	Bellbird Park	O’Reilly’s
29 Mar 2023	482 ppm	451 ppm	446 ppm	417 ppm
28 Mar 2023	476 ppm	446 ppm	450ppm	423 ppm
27 Mar 2023	470 ppm	443 ppm	445 ppm	425 ppm
26 Mar 2023	464 ppm	439 ppm	435 ppm	417 ppm
25 Mar 2023	467 ppm	446 ppm	437 ppm	TBA
24 Mar 2023	475 ppm	443ppm	456 ppm	TBA
23 Mar 2023	472 ppm	444 ppm	428 ppm	TBA
22 Mar 2023	463 ppm	435 ppm	423 ppm	TBA
21 Mar 2023	459 ppm	431 ppm	425 ppm	TBA
20 Mar 2023	464 ppm	441 ppm	439 ppm	TBA
19 Mar 2023	467 ppm	—	445 ppm	TBA
18 Mar 2023	471 ppm	448 ppm	443 ppm	TBA
17 Mar 2023	477 ppm	448 ppm	443 ppm	TBA
16 Mar 2023	484 ppm	455 ppm	470 ppm	TBA
15 Mar 2023	468 ppm	446 ppm	444 ppm	TBA
14 Mar 2023	461 ppm	443 ppm	446 ppm	413 ppm
13 Mar 2023	—	447 ppm	440 ppm
12 Mar 2023	—	452 ppm	446 ppm
11 Mar 2023	—	447 ppm	449 ppm
10 Mar 2023	—	443 ppm	420 ppm
9 Mar 2023	470 ppm	435 ppm	436 ppm
8 Mar 2023	461 ppm	427 ppm	418 ppm
7 Mar 2023	452 ppm	424 ppm	427 ppm
6 Mar 2023	454 ppm	428 ppm	432 ppm
5 Mar 2023	450 ppm	426 ppm	430 ppm
4 Mar 2023	449 ppm	425 ppm	424 ppm
3 Mar 2023	456 ppm	432 ppm	427 ppm
2 Mar 2023	465 ppm	434 ppm	423 ppm
1 Mar 2023	452 ppm	425ppm	426 ppm
28 Feb 2023	453 ppm	429 ppm	429 ppm
27 Feb 2023	458 ppm	432 ppm	437 ppm
26 Feb 2023	455 ppm	434 ppm	440 ppm
25 Feb 2023	454 ppm	432 ppm	435 ppm
24 Feb 2023	452 ppm	428 ppm	423 ppm
23 Feb 2023	454 ppm	428 ppm	421 ppm
22 Feb 2023	457 ppm	433 ppm	425 ppm
21 Feb 2023	463 ppm	437ppm	429 ppm
20 Feb 2023	460 ppm	438 ppm	425 ppm
19 Feb 2023	459 ppm	434 ppm	430 ppm
18 Feb 2023	463 ppm	436 ppm	438 ppm
17 Feb 2023	466 ppm	437 ppm	443 ppm
16 Feb 2023	459 ppm	435 ppm	438 ppm
15 Feb 2023	459 ppm	430 ppm	426 ppm
14 Feb 2023	457 ppm	431 ppm	419 ppm
13 Feb 2023	453 ppm	429 ppm	418 ppm
12 Feb 2023	450 ppm	428 ppm	436 ppm
11 Feb 2023	448 ppm	428 ppm	435 ppm
10 Feb 2023	451 ppm	429ppm	418 ppm
9 Feb 2023	451 ppm	428ppm	413 ppm
8 Feb 2023	452 ppm	429 ppm	416 ppm
7 Feb 2023	454 ppm	434 ppm	434 ppm
6 Feb 2023	454 ppm	436 ppm	425 ppm
5 Feb 2023	454 ppm	447 ppm	433 ppm
4 Feb 2023	456 ppm	451 ppm	451 ppm
3 Feb 2023	464 ppm	438 ppm	442 ppm
2 Feb 2023	451 ppm	426 ppm	418 ppm
1 Feb 2023	460 ppm	—	428 ppm
31 Jan 2023	459 ppm	—	434 ppm
30 Jan 2023	454 ppm	432 ppm	432 ppm
29 Jan 2023	455 ppm	437 ppm	450 ppm
28 Jan 2023	470 ppm	451 ppm	449 ppm
27 Jan 2023	469 ppm	452 ppm	445 ppm
26 Jan 2023	470 ppm	451 ppm	449 ppm
25 Jan 2023	470 ppm	440 ppm	436 ppm
24 Jan 2023	460 ppm	436 ppm	433 ppm
23 Jan 2023	455 ppm	435 ppm	441 ppm
22 Jan 2023	448 ppm	433 ppm	433 ppm
21 Jan 2023	450 ppm	431 ppm	425 ppm
20 Jan 2023	453 ppm	431 ppm	421 ppm
19 Jan 2023	451 ppm	430 ppm	436 ppm
18 Jan 2023	451 ppm	431 ppm	421 ppm
17 Jan 2023	453 ppm	436 ppm	422 ppm
16 Jan 2023	460 ppm	440 ppm	425 ppm
15 Jan 2023	456 ppm	436 ppm	432 ppm
14 Jan 2023	452 ppm	431 ppm	422 ppm
13 Jan 2023	455 ppm	433ppm	422 ppm
12 Jan 2023	452 ppm	433 ppm	433 ppm
11 Jan 2023	453 ppm	433 ppm	442 ppm
10 Jan 2023	453 ppm	435 ppm	424 ppm
9 Jan 2023	447 ppm	427 ppm	426 ppm
8 Jan 2023	450 ppm	434 ppm	439 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

On Monday the average carbon dioxide concentration at Petrie Terrace (476 ppm and peaking above 500 ppm) was the third highest so far this year.  The average for the three urban sites (at 457 ppm) also reached its third highest level.

We’re growing the network – if you’d like to host or sponsor a sensor – leave us a message.  As we add more sensor sites, comparisons across the urban area will become more robust and informative about Brisbane’s Carbon dioxide emissions.

Daily Averages

For reference, latest monthly average (Feb 2023) from CSIRO for Kennaook/Cape Grim in NW Tasmania was 415.1 ppm. (Note – these are provisional values, subject to revision folllowing sensor re-calibrations and other checks.)

DATE	Petrie Terrace	Chapel Hill	Bellbird Park	O’Reilly’s
28 Mar 2023	476 ppm	446 ppm	450ppm	423 ppm
27 Mar 2023	470 ppm	443 ppm	445 ppm	425 ppm
26 Mar 2023	464 ppm	439 ppm	435 ppm	417 ppm
25 Mar 2023	467 ppm	446 ppm	437 ppm	TBA
24 Mar 2023	475 ppm	443ppm	456 ppm	TBA
23 Mar 2023	472 ppm	444 ppm	428 ppm	TBA
22 Mar 2023	463 ppm	435 ppm	423 ppm	TBA
21 Mar 2023	459 ppm	431 ppm	425 ppm	TBA
20 Mar 2023	464 ppm	441 ppm	439 ppm	TBA
19 Mar 2023	467 ppm	—	445 ppm	TBA
18 Mar 2023	471 ppm	448 ppm	443 ppm	TBA
17 Mar 2023	477 ppm	448 ppm	443 ppm	TBA
16 Mar 2023	484 ppm	455 ppm	470 ppm	TBA
15 Mar 2023	468 ppm	446 ppm	444 ppm	TBA
14 Mar 2023	461 ppm	443 ppm	446 ppm	413 ppm
13 Mar 2023	—	447 ppm	440 ppm
12 Mar 2023	—	452 ppm	446 ppm
11 Mar 2023	—	447 ppm	449 ppm
10 Mar 2023	—	443 ppm	420 ppm
9 Mar 2023	470 ppm	435 ppm	436 ppm
8 Mar 2023	461 ppm	427 ppm	418 ppm
7 Mar 2023	452 ppm	424 ppm	427 ppm
6 Mar 2023	454 ppm	428 ppm	432 ppm
5 Mar 2023	450 ppm	426 ppm	430 ppm
4 Mar 2023	449 ppm	425 ppm	424 ppm
3 Mar 2023	456 ppm	432 ppm	427 ppm
2 Mar 2023	465 ppm	434 ppm	423 ppm
1 Mar 2023	452 ppm	425ppm	426 ppm
28 Feb 2023	453 ppm	429 ppm	429 ppm
27 Feb 2023	458 ppm	432 ppm	437 ppm
26 Feb 2023	455 ppm	434 ppm	440 ppm
25 Feb 2023	454 ppm	432 ppm	435 ppm
24 Feb 2023	452 ppm	428 ppm	423 ppm
23 Feb 2023	454 ppm	428 ppm	421 ppm
22 Feb 2023	457 ppm	433 ppm	425 ppm
21 Feb 2023	463 ppm	437ppm	429 ppm
20 Feb 2023	460 ppm	438 ppm	425 ppm
19 Feb 2023	459 ppm	434 ppm	430 ppm
18 Feb 2023	463 ppm	436 ppm	438 ppm
17 Feb 2023	466 ppm	437 ppm	443 ppm
16 Feb 2023	459 ppm	435 ppm	438 ppm
15 Feb 2023	459 ppm	430 ppm	426 ppm
14 Feb 2023	457 ppm	431 ppm	419 ppm
13 Feb 2023	453 ppm	429 ppm	418 ppm
12 Feb 2023	450 ppm	428 ppm	436 ppm
11 Feb 2023	448 ppm	428 ppm	435 ppm
10 Feb 2023	451 ppm	429ppm	418 ppm
9 Feb 2023	451 ppm	428ppm	413 ppm
8 Feb 2023	452 ppm	429 ppm	416 ppm
7 Feb 2023	454 ppm	434 ppm	434 ppm
6 Feb 2023	454 ppm	436 ppm	425 ppm
5 Feb 2023	454 ppm	447 ppm	433 ppm
4 Feb 2023	456 ppm	451 ppm	451 ppm
3 Feb 2023	464 ppm	438 ppm	442 ppm
2 Feb 2023	451 ppm	426 ppm	418 ppm
1 Feb 2023	460 ppm	—	428 ppm
31 Jan 2023	459 ppm	—	434 ppm
30 Jan 2023	454 ppm	432 ppm	432 ppm
29 Jan 2023	455 ppm	437 ppm	450 ppm
28 Jan 2023	470 ppm	451 ppm	449 ppm
27 Jan 2023	469 ppm	452 ppm	445 ppm
26 Jan 2023	470 ppm	451 ppm	449 ppm
25 Jan 2023	470 ppm	440 ppm	436 ppm
24 Jan 2023	460 ppm	436 ppm	433 ppm
23 Jan 2023	455 ppm	435 ppm	441 ppm
22 Jan 2023	448 ppm	433 ppm	433 ppm
21 Jan 2023	450 ppm	431 ppm	425 ppm
20 Jan 2023	453 ppm	431 ppm	421 ppm
19 Jan 2023	451 ppm	430 ppm	436 ppm
18 Jan 2023	451 ppm	431 ppm	421 ppm
17 Jan 2023	453 ppm	436 ppm	422 ppm
16 Jan 2023	460 ppm	440 ppm	425 ppm
15 Jan 2023	456 ppm	436 ppm	432 ppm
14 Jan 2023	452 ppm	431 ppm	422 ppm
13 Jan 2023	455 ppm	433ppm	422 ppm
12 Jan 2023	452 ppm	433 ppm	433 ppm
11 Jan 2023	453 ppm	433 ppm	442 ppm
10 Jan 2023	453 ppm	435 ppm	424 ppm
9 Jan 2023	447 ppm	427 ppm	426 ppm
8 Jan 2023	450 ppm	434 ppm	439 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

Daily average concentrations of carbon dioxide were above their average for the year to date at all of the sites on Monday. (Note that the 21-day +/- 1 SD range in the bottom right graph for O’Reilly’s includes some days from previous months in its most recent 21 days because of missing data.  Over time, this band will increasingly represent the most recent 21 days.  The data reported for the yesterday (27 Mar) is unaffected by this).

We’re growing the network – if you’d like to host or sponsor a sensor – leave us a message.  As we add more sensor sites, comparisons across the urban area will become more robust and informative about Brisbane’s Carbon dioxide emissions.

Daily Averages

For reference, latest monthly average (Feb 2023) from CSIRO for Kennaook/Cape Grim in NW Tasmania was 415.1 ppm. (Note – these are provisional values, subject to revision folllowing sensor re-calibrations and other checks.)

DATE	Petrie Terrace	Chapel Hill	Bellbird Park	O’Reilly’s
27 Mar 2023	470 ppm	443 ppm	445 ppm	425 ppm
26 Mar 2023	464 ppm	439 ppm	435 ppm	417 ppm
25 Mar 2023	467 ppm	446 ppm	437 ppm	TBA
24 Mar 2023	475 ppm	443ppm	456 ppm	TBA
23 Mar 2023	472 ppm	444 ppm	428 ppm	TBA
22 Mar 2023	463 ppm	435 ppm	423 ppm	TBA
21 Mar 2023	459 ppm	431 ppm	425 ppm	TBA
20 Mar 2023	464 ppm	441 ppm	439 ppm	TBA
19 Mar 2023	467 ppm	—	445 ppm	TBA
18 Mar 2023	471 ppm	448 ppm	443 ppm	TBA
17 Mar 2023	477 ppm	448 ppm	443 ppm	TBA
16 Mar 2023	484 ppm	455 ppm	470 ppm	TBA
15 Mar 2023	468 ppm	446 ppm	444 ppm	TBA
14 Mar 2023	461 ppm	443 ppm	446 ppm	413 ppm
13 Mar 2023	—	447 ppm	440 ppm
12 Mar 2023	—	452 ppm	446 ppm
11 Mar 2023	—	447 ppm	449 ppm
10 Mar 2023	—	443 ppm	420 ppm
9 Mar 2023	470 ppm	435 ppm	436 ppm
8 Mar 2023	461 ppm	427 ppm	418 ppm
7 Mar 2023	452 ppm	424 ppm	427 ppm
6 Mar 2023	454 ppm	428 ppm	432 ppm
5 Mar 2023	450 ppm	426 ppm	430 ppm
4 Mar 2023	449 ppm	425 ppm	424 ppm
3 Mar 2023	456 ppm	432 ppm	427 ppm
2 Mar 2023	465 ppm	434 ppm	423 ppm
1 Mar 2023	452 ppm	425ppm	426 ppm
28 Feb 2023	453 ppm	429 ppm	429 ppm
27 Feb 2023	458 ppm	432 ppm	437 ppm
26 Feb 2023	455 ppm	434 ppm	440 ppm
25 Feb 2023	454 ppm	432 ppm	435 ppm
24 Feb 2023	452 ppm	428 ppm	423 ppm
23 Feb 2023	454 ppm	428 ppm	421 ppm
22 Feb 2023	457 ppm	433 ppm	425 ppm
21 Feb 2023	463 ppm	437ppm	429 ppm
20 Feb 2023	460 ppm	438 ppm	425 ppm
19 Feb 2023	459 ppm	434 ppm	430 ppm
18 Feb 2023	463 ppm	436 ppm	438 ppm
17 Feb 2023	466 ppm	437 ppm	443 ppm
16 Feb 2023	459 ppm	435 ppm	438 ppm
15 Feb 2023	459 ppm	430 ppm	426 ppm
14 Feb 2023	457 ppm	431 ppm	419 ppm
13 Feb 2023	453 ppm	429 ppm	418 ppm
12 Feb 2023	450 ppm	428 ppm	436 ppm
11 Feb 2023	448 ppm	428 ppm	435 ppm
10 Feb 2023	451 ppm	429ppm	418 ppm
9 Feb 2023	451 ppm	428ppm	413 ppm
8 Feb 2023	452 ppm	429 ppm	416 ppm
7 Feb 2023	454 ppm	434 ppm	434 ppm
6 Feb 2023	454 ppm	436 ppm	425 ppm
5 Feb 2023	454 ppm	447 ppm	433 ppm
4 Feb 2023	456 ppm	451 ppm	451 ppm
3 Feb 2023	464 ppm	438 ppm	442 ppm
2 Feb 2023	451 ppm	426 ppm	418 ppm
1 Feb 2023	460 ppm	—	428 ppm
31 Jan 2023	459 ppm	—	434 ppm
30 Jan 2023	454 ppm	432 ppm	432 ppm
29 Jan 2023	455 ppm	437 ppm	450 ppm
28 Jan 2023	470 ppm	451 ppm	449 ppm
27 Jan 2023	469 ppm	452 ppm	445 ppm
26 Jan 2023	470 ppm	451 ppm	449 ppm
25 Jan 2023	470 ppm	440 ppm	436 ppm
24 Jan 2023	460 ppm	436 ppm	433 ppm
23 Jan 2023	455 ppm	435 ppm	441 ppm
22 Jan 2023	448 ppm	433 ppm	433 ppm
21 Jan 2023	450 ppm	431 ppm	425 ppm
20 Jan 2023	453 ppm	431 ppm	421 ppm
19 Jan 2023	451 ppm	430 ppm	436 ppm
18 Jan 2023	451 ppm	431 ppm	421 ppm
17 Jan 2023	453 ppm	436 ppm	422 ppm
16 Jan 2023	460 ppm	440 ppm	425 ppm
15 Jan 2023	456 ppm	436 ppm	432 ppm
14 Jan 2023	452 ppm	431 ppm	422 ppm
13 Jan 2023	455 ppm	433ppm	422 ppm
12 Jan 2023	452 ppm	433 ppm	433 ppm
11 Jan 2023	453 ppm	433 ppm	442 ppm
10 Jan 2023	453 ppm	435 ppm	424 ppm
9 Jan 2023	447 ppm	427 ppm	426 ppm
8 Jan 2023	450 ppm	434 ppm	439 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

Contact briefly restored with O’Reilly’s, so data for Sunday covers all four sites.  O’Reilly’s average for the day is close to the background level recorded by CSIRO at Kennaook/Cape Grim. Concentrations started lower than at the urban sites, but rose towards midnight, reaching levels closer to Bellbird Park and Chapel Hill.  To firm up communications with O’Reilly’s, we will shortly replace a 4G dongle with a local WIFI connection for that sensor.  To give a flavour of some possible future reporting, we include today a map with the 21-day average levels depicted.

Please note that the 21-day averages include some missing days, so they represent the most recent 21 days for which each site has data. 

 

We’re growing the network – if you’d like to host or sponsor a sensor – leave us a message.  As we add more sensor sites, comparisons across the urban area will become more robust and informative about Brisbane’s Carbon dioxide emissions.

Daily Averages

For reference, latest monthly average (Feb 2023) from CSIRO for Kennaook/Cape Grim in NW Tasmania was 415.1 ppm. (Note – these are provisional values, subject to revision folllowing sensor re-calibrations and other checks.)

DATE	Petrie Terrace	Chapel Hill	Bellbird Park	O’Reilly’s
26 Mar 2023	464 ppm	439 ppm	435 ppm	417 ppm
25 Mar 2023	467 ppm	446 ppm	437 ppm	TBA
24 Mar 2023	475 ppm	443ppm	456 ppm	TBA
23 Mar 2023	472 ppm	444 ppm	428 ppm	TBA
22 Mar 2023	463 ppm	435 ppm	423 ppm	TBA
21 Mar 2023	459 ppm	431 ppm	425 ppm	TBA
20 Mar 2023	464 ppm	441 ppm	439 ppm	TBA
19 Mar 2023	467 ppm	—	445 ppm	TBA
18 Mar 2023	471 ppm	448 ppm	443 ppm	TBA
17 Mar 2023	477 ppm	448 ppm	443 ppm	TBA
16 Mar 2023	484 ppm	455 ppm	470 ppm	TBA
15 Mar 2023	468 ppm	446 ppm	444 ppm	TBA
14 Mar 2023	461 ppm	443 ppm	446 ppm	413 ppm
13 Mar 2023	—	447 ppm	440 ppm
12 Mar 2023	—	452 ppm	446 ppm
11 Mar 2023	—	447 ppm	449 ppm
10 Mar 2023	—	443 ppm	420 ppm
9 Mar 2023	470 ppm	435 ppm	436 ppm
8 Mar 2023	461 ppm	427 ppm	418 ppm
7 Mar 2023	452 ppm	424 ppm	427 ppm
6 Mar 2023	454 ppm	428 ppm	432 ppm
5 Mar 2023	450 ppm	426 ppm	430 ppm
4 Mar 2023	449 ppm	425 ppm	424 ppm
3 Mar 2023	456 ppm	432 ppm	427 ppm
2 Mar 2023	465 ppm	434 ppm	423 ppm
1 Mar 2023	452 ppm	425ppm	426 ppm
28 Feb 2023	453 ppm	429 ppm	429 ppm
27 Feb 2023	458 ppm	432 ppm	437 ppm
26 Feb 2023	455 ppm	434 ppm	440 ppm
25 Feb 2023	454 ppm	432 ppm	435 ppm
24 Feb 2023	452 ppm	428 ppm	423 ppm
23 Feb 2023	454 ppm	428 ppm	421 ppm
22 Feb 2023	457 ppm	433 ppm	425 ppm
21 Feb 2023	463 ppm	437ppm	429 ppm
20 Feb 2023	460 ppm	438 ppm	425 ppm
19 Feb 2023	459 ppm	434 ppm	430 ppm
18 Feb 2023	463 ppm	436 ppm	438 ppm
17 Feb 2023	466 ppm	437 ppm	443 ppm
16 Feb 2023	459 ppm	435 ppm	438 ppm
15 Feb 2023	459 ppm	430 ppm	426 ppm
14 Feb 2023	457 ppm	431 ppm	419 ppm
13 Feb 2023	453 ppm	429 ppm	418 ppm
12 Feb 2023	450 ppm	428 ppm	436 ppm
11 Feb 2023	448 ppm	428 ppm	435 ppm
10 Feb 2023	451 ppm	429ppm	418 ppm
9 Feb 2023	451 ppm	428ppm	413 ppm
8 Feb 2023	452 ppm	429 ppm	416 ppm
7 Feb 2023	454 ppm	434 ppm	434 ppm
6 Feb 2023	454 ppm	436 ppm	425 ppm
5 Feb 2023	454 ppm	447 ppm	433 ppm
4 Feb 2023	456 ppm	451 ppm	451 ppm
3 Feb 2023	464 ppm	438 ppm	442 ppm
2 Feb 2023	451 ppm	426 ppm	418 ppm
1 Feb 2023	460 ppm	—	428 ppm
31 Jan 2023	459 ppm	—	434 ppm
30 Jan 2023	454 ppm	432 ppm	432 ppm
29 Jan 2023	455 ppm	437 ppm	450 ppm
28 Jan 2023	470 ppm	451 ppm	449 ppm
27 Jan 2023	469 ppm	452 ppm	445 ppm
26 Jan 2023	470 ppm	451 ppm	449 ppm
25 Jan 2023	470 ppm	440 ppm	436 ppm
24 Jan 2023	460 ppm	436 ppm	433 ppm
23 Jan 2023	455 ppm	435 ppm	441 ppm
22 Jan 2023	448 ppm	433 ppm	433 ppm
21 Jan 2023	450 ppm	431 ppm	425 ppm
20 Jan 2023	453 ppm	431 ppm	421 ppm
19 Jan 2023	451 ppm	430 ppm	436 ppm
18 Jan 2023	451 ppm	431 ppm	421 ppm
17 Jan 2023	453 ppm	436 ppm	422 ppm
16 Jan 2023	460 ppm	440 ppm	425 ppm
15 Jan 2023	456 ppm	436 ppm	432 ppm
14 Jan 2023	452 ppm	431 ppm	422 ppm
13 Jan 2023	455 ppm	433ppm	422 ppm
12 Jan 2023	452 ppm	433 ppm	433 ppm
11 Jan 2023	453 ppm	433 ppm	442 ppm
10 Jan 2023	453 ppm	435 ppm	424 ppm
9 Jan 2023	447 ppm	427 ppm	426 ppm
8 Jan 2023	450 ppm	434 ppm	439 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