Weeks of September 25 to October 16, 2023
| Provincial data | Week of September 25 | Week of October 2 | Week of Octobre 9 | Week of October 16 |
|---|---|---|---|---|
| Number of schools concerned | 3 267 | 3 261 | 3 266 | 3 269 |
| Number of classrooms concerned | 77 788 | 77 537 | 78 103 | 78 097 |
| Average weekly CO2 concentration, from all active sensors | 815 ppm | 747 ppm | 782 ppm | 834 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 62 833 (80,8 %) | 69 000 (89,0 %) | 64 852 (83,0 %) | 60 361 (77,3 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 13 242 (17,0 %) | 7 526 (9,7 %) | 11 758 (15,1 %) | 15 119 (19,4 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 1 405 (1,8 %) | 767 (1,0 %) | 1 314 (1,7 %) | 2 213 (2,8 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 308 (0,4 %) | 244 (0,3 %) | 179 (0,2 %) | 404 (0,5 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 24 °C | 22 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20°C | 2 037 (2,6 %) | 525 (0,7 %) | 5 903 (7,6 %) | 2 902 (3,7 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 74 984 (96,8 %) | 72 356 (93,5 %) | 71 849 (92,1 %) | 74 809 (96,0 %) |
| Number of classrooms with an average weekly temperature over 26°C | 486 (0,6 %) | 4 520 (5,8 %) | 236 (0,3 %) | 272 (0,3 %) |
Weeks of August 28 to September 18, 2023
| Provincial data | Week of August 28 | Week of September 4 | Week of September 11 | Week of September 18 |
|---|---|---|---|---|
| Number of schools concerned | 3 220 | 3 222 | 3 234 | 3 238 |
| Number of classrooms concerned | 76 461 | 75 085 | 76 909 | 76 756 |
| Average weekly CO2 concentration, from all active sensors | 662 ppm | 741 ppm | 734 ppm | 762 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 72 430 (94,7 %) | 66 175 (88,1 %) | 69 296 (90,1 %) | 67 171 (87,5 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 3 259 (4,3 %) | 7 136 (9,5 %) | 6 375 (8,3 %) | 8 441 (11,0 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 558 (0,7 %) | 1 262 (1,7 %) | 874 (1,1 %) | 875 (1,1 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 214 (0,3 %) | 512 (0,7%) | 364 (0,5 %) | 269 (0,4 %) |
| Average of the average weekly temperatures from all active sensors | 23 °C | 25 °C | 23 °C | 23 °C |
| Number of classrooms with an average weekly temperature under 20°C | 743 (1,0 %) | 281 (0,4 %) | 825 (1,1 %) | 1 315 (1,7 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 72 172 (94,3 %) | 42 677 (56,8 %) | 73 752 (95,8 %) | 74 920 (97,5 %) |
| Number of classrooms with an average weekly temperature over 26°C | 3 609 (4,7 %) | 32 195 (42,8 %) | 2 393 (3,1 %) | 577 (0,8 %) |
Weeks of May 29 to June 22, 2023
| Provincial data | Week of 29 mai | Week of June 5 | Week of June 12 | Week of June 19 |
|---|---|---|---|---|
| Number of schools concerned | 3 367 | 3 289 | 3 294 | 3 288 |
| Number of classrooms concerned | 79 522 | 79 142 | 79 196 | 78 390 |
| Average weekly CO2 concentration, from all active sensors | 742 ppm | 755 ppm | 700 ppm | 621 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 70 716 (88,9 %) | 67 467 (85,2 %) | 72 656 (91,7 %) | 75 118 (95,8 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 7 417 (9,3 %) | 10 279 (13,0 %) | 5 596 (7,1 %) | 2 836 (3,6 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 1 003 (1,3 %) | 1 175 (1,5 %) | 743 (0,9 %) | 355 (0,5 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 386 (0,5 %) | 221 (0,3 %) | 201 (0,3 %) | 81 (0,1 %) |
| Average of the average weekly temperatures from all active sensors | 24 °C | 22 °C | 24 °C | 24 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 1 017 (1,3 %) | 1 398 (1,8 %) | 584 (0,7 %) | 885 (1,1 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 58 382 (73,8 %) | 76 169 (96,3 %) | 74 578 (94,4 %) | 71 623 (91,6 %) |
| Number of classrooms with an average weekly temperature over 26°C | 19 681 (24,9 %) | 1 520 (1,9 %) | 3 860 (4,9 %) | 5 743 (7,3 %) |
Weeks of May 1 to May 26, 2023
| Provincial data | Week of May 1 | Week of May 8 | Week of May 15 | Week of May 22 |
|---|---|---|---|---|
| Number of schools concerned | 3 289 | 3 296 | 3 065 | 3 151 |
| Number of classrooms concerned | 78 637 | 79 047 | 78 926 | 79 279 |
| Average weekly CO2 concentration, from all active sensors | 844 ppm | 732 ppm | 723 ppm | 786 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 59 611 (75,8 %) | 71 439 (90,4 %) | 64 924 (82,3 %) | 71 218 (89,9 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 16 710 (21,3 %) | 7 048 (8,9 %) | 12 902 (16,3 %) | 6 991 (8,8 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 2048 (2,6 %) | 491 (0,6 %) | 994 (1,3 %) | 715 (0,9 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 268 (0,3 %) | 69 (0,1 %) | 106 (0,1 %) | 355 (0,4 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 23 °C | 22 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 2 661 (3,4 %) | 825 (1,0 %) | 2 340 (3,0 %) | 1 923 (2,4 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 75 662 (96,4 %) | 77 294 (98,0 %) | 75 835 (96,7 %) | 75 369 (95,1 %) |
| Number of classrooms with an average weekly temperature over 26°C | 157 (0,2 %) | 786 (1,0 %) | 235 (0,3 %) | 1 992 (2,5 %) |
Weeks of April 3 to April 28, 2023
| Provincial data | Week of April 3 | Week of April 10 | Week of April 17 | Week of April 24 |
|---|---|---|---|---|
| Number of schools concerned | 3 294 | 3 298 | 3 302 | 3 299 |
| Number of classrooms concerned | 78 393 | 78 963 | 79 036 | 79 357 |
| Average weekly CO2 concentration, from all active sensors | 899 ppm | 747 ppm | 853 ppm | 868 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 54 807 (69,9 %) | 69 597 (88,1 %) | 59 459 (75,2 %) | 58 561 (73,8 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 19 313 (24,6 %) | 8 788 (11,1 %) | 17 143 (21,7 %) | 17 869 (22,5 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 3 590 (4,6 %) | 520 (0,7 %) | 2 187 (2,8 %) | 2 609 (3,3 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 683 (0,9 %) | 58 (0,1 %) | 247 (0,3 %) | 318 (0,4 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 22 °C | 22 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 4 111 (5,3 %) | 1 758 (2,2 %) | 1 701 (2,2 %) | 2 447 (3,1 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 73 721 (94,3 %) | 76 435 (97,1 %) | 76 825 (97,4 %) | 76 404 (96,5 %) |
| Number of classrooms with an average weekly temperature over 26°C | 319 (0,4 %) | 557 (0,7 %) | 304 (0,4 %) | 324 (0,4 %) |
Weeks of March 6 to March 31, 2023
| Provincial data | Week of March 6* | Week of March 13 | Week of March 20 | Week of March 27 |
|---|---|---|---|---|
| Number of schools concerned | 2 275 | 3 291 | 3 295 | 3 297 |
| Number of classrooms concerned | 57 081 | 78 977 | 79 232 | 79 072 |
| Average weekly CO2 concentration, from all active sensors | 858 ppm | 918 ppm | 920 ppm | 908 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 42 031 (73,6 %) | 53 264 (67,4 %) | 53 597 (67,6%) | 54 356 (68,8 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 12 422 (21,8 %) | 21 371 (27,1 %) | 21 252 (26,8 %) | 21 031 (26,6 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 2 262 (4,0 %) | 3 709 (4,7 %) | 3 779 (4,8 %) | 3 201 (4,0 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 366 (0,6 %) | 633 (0,8 %) | 604 (0,8 %) | 484 (0,6 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 22 °C | 22 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 2 990 (5,3 %) | 2 605 (3,3 %) | 2 771 (3,5 %) | 2 498 (3,2 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 53 498 (94,0 %) | 75 870 (96,3 %) | 75 925 (96,1 %) | 76 041 (96,4 %) |
| Number of classrooms with an average weekly temperature over 26°C | 389 (0,7 %) | 300 (0,4 %) | 316 (0,4 %) | 307 (0,4 %) |
Weeks of February 6 to March 3, 2023
| Provincial data | Week of February 6 | Week of February 13 | Week of February 20 | Week of February 27* |
|---|---|---|---|---|
| Number of schools concerned | 3 278 | 3 279 | 3 288 | 1 205 |
| Number of classrooms concerned | 77 876 | 78 505 | 78 857 | 29 137 |
| Average weekly CO2 concentration, from all active sensors | 917 ppm | 861 ppm | 927 ppm | 839 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 53 031 (68,1 %) | 58 225 (74,2 %) | 52 450 (66,6 %) | 21 688 (74,5 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 20 554 (26,4 %) | 17 666 (22,5 %) | 21 613 (27,4 %) | 6 264 (21,5 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 3 501 (4,5 %) | 2 266 (2,9 %) | 3 971 (5,0 %) | 976 (3,3 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 790 (1,0 %) | 348 (0,4 %) | 823 (1,0 %) | 209 (0,7 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 22 °C | 22 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 4 526 (5,8 %) | 3 306 (4,2 %) | 4 467 (5,7 %) | 2 258 (7,7 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 72 758 (93,8 %) | 74 438 (95,4 %) | 73 809 (93,9 %) | 26 754 (91,5 %) |
| Number of classrooms with an average weekly temperature over 26°C | 289 (0,4 %) | 312 (0,4 %) | 344 (0,4 %) | 225 (0,8 %) |
*As 30 school service centres and school boards were on spring break the week of February 27, 2023, the CO2 values measured in their classrooms were not included in the analysis.
Weeks of January 9 to February 3, 2023
| Provincial data | Week of January 9 | Week of January 16 | Week of January 23 | Week of January 30* |
|---|---|---|---|---|
| Number of schools concerned | 3 228 | 3 218 | 3 235 | 3 243 |
| Number of classrooms concerned | 76 581 | 77 063 | 77 561 | 77 552 |
| Average weekly CO2 concentration, from all active sensors | 907 ppm | 953 ppm | 894 ppm | 964 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 53 462 (69,8 %) | 49 164 (63,8 %) | 54 573 (70,4 %) | 47 847 (61,8 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 18 834 (24,6 %) | 22 398 (29,1 %) | 19 087 (24,6 %) | 23 683 (30,5 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 3 346 (4,4 %) | 4 484 (5,8 %) | 3 216 (4,1 %) | 4 996 (6,4 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 939 (1,2 %) | 1 017 (1,3 %) | 685 (0,9 %) | 1 026 (1,3 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 22 °C | 22 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 6 550 (8,7 %) | 4 344 (5,7 %) | 4 903 (6,4 %) | 5 979 (7,8 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 68 567 (91,0 %) | 71 309 (94,1 %) | 71 228 (93,4 %) | 70 111 (91,9 %) |
| Number of classrooms with an average weekly temperature over 26°C | 194 (0,3 %) | 187 (0,2 %) | 186 (0,2 %) | 217 (0,3 %) |
Weeks of November 28 to December 22, 2022
| Provincial data | Week of November 28 | Week of November 5 | Week of December 12 | Week of December 19 |
|---|---|---|---|---|
| Number of schools concerned | 3 208 | 3 226 | 3 227 | 3 246 |
| Number of classrooms concerned | 73 629 | 75 462 | 76 125 | 76 122 |
| Average weekly CO2 concentration, from all active sensors | 902 ppm | 907 ppm | 934 ppm | 930 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 51 076 (69.3 %) | 52 526 (69.6 %) | 50 570 (66.4 %) | 50 855 (66.8 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 18 247 (24.8 %) | 18 654 (24.7 %) | 20 343 (26.7 %) | 20 177 (26.5 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 3 378 (4.6 %) | 3 385 (4.5 %) | 4 000 (5.3 %) | 3 892 (5.1 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 928 (1.3 %) | 897 (1.2 %) | 1 212 (1.6 %) | 1 198 (1.6 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 22 °C | 22 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 3 728 (5.6 %) | 3 142 (4.2 %) | 5 169 (6.9 %) | 4 818 (6.4 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 62 093 (94.2 %) | 71 111 (95.6 %) | 69 596 (92.8 %) | 70 015 (93.3 %) |
| Number of classrooms with an average weekly temperature over 26°C | 136 (0.2 %) | 181 (0.2 %) | 219 (0.3 %) | 193 (0.3 %) |
Weeks of October 31 to November 25, 2022
| Provincial data | Week of October 31 | Week of November 7 | Week of November 14 | Week of November 21 |
|---|---|---|---|---|
| Number of schools concerned | 3 205 | 3 196 | 3 208 | 3 221 |
| Number of classrooms concerned | 72 293 | 72 408 | 71 595 | 72 893 |
| Average weekly CO2 concentration, from all active sensors | 831 ppm | 818 ppm | 890 ppm | 904 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 56 616 (78.4 %) | 57 583 (79.5 %) | 51 173 (71.4 %) | 50 580 (69.4 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 13 691 (18.9 %) | 12 924 (17.8 %) | 16 254 (22.7 %) | 17 985 (24.7 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 1 670 (2.3 %) | 1 640 (2.3 %) | 3 273 (4.6 %) | 3 495 (4.8 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 316 (0.4 %) | 261 (0.4 %) | 895 (1.3 %) | 833 (1.1 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 22 °C | 21 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 1 998 (3.1 %) | 1 929 (3.0 %) | 4 957 (7.8 %) | 4 669 (7.1 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 61 772 (96.5 %) | 62 028 (96.7 %) | 58 760 (92.0 %) | 60 571 (92.7 %) |
| Number of classrooms with an average weekly temperature over 26°C | 268 (0.4 %) | 218 (0,. %) | 122 (0.2 %) | 124 (0..2 %) |
| Provincial data | Week of October 3 | Week of October 10 | Week of October 17 | Week of October 24 |
|---|---|---|---|---|
| Number of schools concerned | 3 197 | 3 199 | 3 197 | 3 201 |
| Number of classrooms concerned | 70 835 | 71 811 | 71 714 | 72 284 |
| Average weekly CO2 concentration, from all active sensors | 764 ppm | 825 ppm | 845 ppm | 802 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 60 019 (84,6 %) | 55 898 (77,8 %) | 54 561 (76,0 %) | 59 571 (82,4 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 9 604 (13,6 %) | 13 498 (18,8 %) | 14 670 (20,5 %) | 11 430 (15,8 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 962 | 1 927 (2,7 %) | 2 013 (2,8 %) | 1 029 (0,4 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 250 (0,4 %) | 488 (0,7 %) | 470 (0,7 %) | 254 (0,4 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 22 °C | 22 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 3 562 (5,7 %) | 3 612 (5,7 %) | 3 084 (4,9 %) | 1 330 (2,1 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 58 577 (93,8 %) | 59 855 (94,0 %) | 60 118 (94,9 %) | 62 147 (97,2 %) |
| Number of classrooms with an average weekly temperature over 26°C | 285 (0,5 %) | 203 (0,3 %) | 131 (0,2 %) | 441 (0,7 %) |
| Provincial data | Week of September 5 | Week of September 12 | Week of September 19 | Week of September 26 |
|---|---|---|---|---|
| Number of schools concerned | 3 169 | 3 174 | 3 175 | 3 204 |
| Number of classrooms concerned | 72 392 | 70 045 | 74 843 | 70 478 |
| Average weekly CO2 concentration, from all active sensors | 733 ppm | 716 ppm | 777 ppm | 821 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 65 531 (90,5 %) | 64 601 (92,2 %) | 62 833 (84,0 %) | 54 517 (77,3 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 5 990 (8,3 %) | 4 636 (6,6 %) | 10 722 (14,3 %) | 13 963 (19,8 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 626 | 596 (0,9 %) | 1 029 (1,4 %) | 1 662 (2,4 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 245 (0,3 %) | 212 (0,3 %) | 259 (0,3 %) | 336 (0,5 %) |
| Average of the average weekly temperatures from all active sensors | 23 °C | 23 °C | 21 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 488 (0,8 %) | 1 768 (2,9 %) | 4 850 (7,3 %) | 4 347 (7,0 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 59 437 (93,5 %) | 54 199 (88,6 %) | 61 122 (91,8 %) | 57 672 (92,9 %) |
| Number of classrooms with an average weekly temperature over 26°C | 3 628 (5,7 %) | 5 210 (8,5 %) | 606 (0,9 %) | 61 (0,1 %) |
| Provincial data | Week of May 30 | Week of June 6 | Week of June 13 | Week of June 20 |
|---|---|---|---|---|
| Number of schools concerned | 3 018 | 3 005 | 3 005 | 3 010 |
| Number of classrooms concerned | 72 581 | 73 091 | 73 072 | 73 572 |
| Average weekly CO2 concentration, from all active sensors | 709 ppm | 714 ppm | 653 ppm | 578 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 67 069 (92,4 %) | 66 294 (90,7 %) | 69 457 (95,1 %) | 73 306 (98,3 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 4 936 (6,8 %) | 6 003 (8,2 %) | 3 215 (4,4 %) | 1 162 (1,6 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 436 | 622 (0,9 %) | 312 (0,4 %) | 85 (0,1 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 140 (0,2 %) | 172 (0,2 %) | 88 (0,1 %) | 19 (0,0 %) |
| Average of the average weekly temperatures from all active sensors | 23 °C | 23 °C | 24 °C | 23 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 475 (0,7 %) | 468 (0,7 %) | 271 (0,4 %) | 877 (1,4 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 63 468 (97,9 %) | 63 468 (97,9 %) | 59 733 (92,5 %) | 63 135 (97,5 %) |
| Number of classrooms with an average weekly temperature over 26°C | 879 (1,4 %) | 910 (1,4 %) | 4 573 (7,1 %) | 772 (1,2 %) |
| Provincial data | Week of May 2 | Week of May 9 | Week of May 16 | Week of May 23 |
|---|---|---|---|---|
| Number of schools concerned | 2 957 | 2 963 | 2 956 | 3 016 |
| Number of classrooms concerned | 72 318 | 72 427 | 72 003 | 72 949 |
| Average weekly CO2 concentration, from all active sensors | 766 ppm | 728 ppm | 725 ppm | 696 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 62 211 (86,0 %) | 66 005 (91,1 %) | 65 887 (91,5 %) | 67 867 (93,0 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 9 326 (12,9 %) | 5 832 (8,1 %) | 5 621 (7,8 %) | 4 467 (6,4 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 725 (1,0 %) | 488 (0,7 %) | 363 (0,5 %) | 352 |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 56 (0,1 %) | 102 (0,1 %) | 132 (0,2 %) | 83 (0,1 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 23 °C | 23 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 1 239 (1,9 %) | 342 (0,5 %) | 549 (0,84 %) | 900 (1,4 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 64 017 (97,6 %) | 60 659 (92,4 %) | 63 652 (97,5 %) | 63 595 (97,6 %) |
| Number of classrooms with an average weekly temperature over 26°C | 220 (0,3 %) | 4 559 (6,9 %) | 951 (1,5 %) | 650 (1,0 %) |
| Provincial data | Week of March 21 | Week of March 28 | Week of April 4 | Week of April 25 |
|---|---|---|---|---|
| Number of schools concerned | 2 873 | 2 918 | 2 926 | 2 956 |
| Number of classrooms concerned | 69 614 | 71 003 | 71 218 | 72 343 |
| Average weekly CO2 concentration, from all active sensors | 880 ppm | 903 ppm | 846 ppm | 825 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 50 577 (72,7 %) | 49 478 (69,7 %) | 54 494 (76,5 %) | 57 178 (79,0 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 16 136 (23,2 %) | 18 092 (25,5 %) | 14 754 (20,7 %) | 13 374 (18,5 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 2 821 (4,1 %) | 2 979 (4,2 %) | 1 779 (2,5 %) | 1 623 |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 368 (0,5 %) | 454 (0,6 %) | 191 (0,3 %) | 168 (0,2 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 22 °C | 22 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 1 835 (2,9 %) | 2 442 (3,8 %) | 1 402 (2,2 %) | 1 301 (2,0 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 61 253 (96,7 %) | 61 744 (96,0 %) | 62 807 (97,3 %) | 64 039 (97,8 %) |
| Number of classrooms with an average weekly temperature over 26°C | 256 (0,4 %) | 153 (0,2 %) | 310 (0,5 %) | 162 (0,2 %) |
| Provincial data | Week of February 7 | Week of February 14 | Week of February 21 | Week of March 14 |
|---|---|---|---|---|
| Number of schools concerned | 2 482 | 2 587 | 2 678 | 2 853 |
| Number of classrooms concerned | 54 338 | 58 599 | 63 235 | 68 770 |
| Average weekly CO2 concentration, from all active sensors | 871 ppm | 868 ppm | 918 ppm | 866 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 40 253 (74,1 %) | 43 381 (74 %) | 41 562 (65,7 %) | 50 669 (73,7 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 12 272 (22,6 %) | 13 172 (22,5 %) | 17 959 (28,4 %) | 15 767 (22,9 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 1 587 (2,9 %) | 1 829 (3,1 %) | 3 246 (5,1 %) | 2 082 (3,0 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 226 (0,4 %) | 212 (0,4 %) | 468 (0,7 %) | 252 (0,4 %) |
| Average of the average weekly temperatures from all active sensors | 22 °C | 22 °C | 21,5 °C | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | 2 256 (4,6 %) | 3 430 (6,5 %) | 3 386 (5,9 %) | 1 421 (2,3 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | 46 198 (95,0 %) | 49 051 (93,1 %) | 53 436 (93,6 %) | 60 732 (97,2 %) |
| Number of classrooms with an average weekly temperature over 26°C | 178 (0,4 %) | 233 (0,4 %) | 221 (0,4 %) | 336 (0,5 %) |
| Provincial data | Week of January 24 | Week of January 31 |
|---|---|---|
| Number of schools concerned | 1 798 | 2 334 |
| Number of classrooms concerned | 39 446 | 50 352 |
| Average weekly CO2 concentration, from all active sensors | 904 ppm | 917 ppm |
| Number of classrooms with an average weekly CO2 concentration under 1 000 ppm | 27 181 (68,9 %) | 33 351 (66,2 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 000 and 1 500 ppm | 10 925 (27,7 %) | 14 683 (29,2 %) |
| Number of classrooms with an average weekly CO2 concentration between 1 500 and 2 000 ppm | 1 243 (3,2 %) | 2 056 (4,1 %) |
| Number of classrooms with an average weekly CO2 concentration over 2 000 ppm | 97 (0,2 %) | 262 (0,5 %) |
| Average of the average weekly temperatures from all active sensors | N/D | 22 °C |
| Number of classrooms with an average weekly temperature under 20 °C | N/D | 2 920 (6,4 %) |
| Number of classrooms with an average weekly temperature between 20°C and 26°C | N/D | 42 161 (93,2 %) |
| Number of classrooms with an average weekly temperature over 26°C | N/D | 168 (0,4 %) |
Because the spring break took place the weeks of February 28 and March 7, 2022, the collated data for these weeks has not been published or taken into account for analysis purposes. It is not truly representative because neither students nor staff were present.
Because the Easter break, which included a statutory holiday and several pedagogical days, occurred during the weeks of April 11 and April 18, 2022, the collated data for these weeks has not been published or taken into account for analysis purposes. It is not truly representative because the break reduced the number of students and staff present.
Last update: October 17, 2023
