Yosemite National Park (Yosemite Theater) CA, US: 37.748707, -119.587094
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sept. 21, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 281.0 μg/m3 (330) | 330.0 | |
| Sept. 21, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 187.0 μg/m3 (116) | 181.0 μg/m3 (230) | 230.0 | |
| Sept. 21, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 129.0 μg/m3 (87) | 122.0 μg/m3 (185) | 185.0 | |
| Sept. 21, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 115.0 μg/m3 (80) | 102.0 μg/m3 (174) | 174.0 | |
| Sept. 21, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 89.0 μg/m3 (67) | 82.0 μg/m3 (164) | 164.0 | |
| Sept. 21, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 74.0 μg/m3 (60) | 64.0 μg/m3 (154) | 154.0 | |
| Sept. 21, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 75.0 μg/m3 (60) | 67.0 μg/m3 (156) | 156.0 | |
| Sept. 21, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 76.0 μg/m3 (60) | 63.0 μg/m3 (154) | 154.0 | |
| Sept. 21, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 74.0 μg/m3 (60) | 63.0 μg/m3 (154) | 154.0 | |
| Sept. 21, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 84.0 μg/m3 (64) | 69.0 μg/m3 (157) | 157.0 | |
| Sept. 20, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 88.0 μg/m3 (66) | 72.0 μg/m3 (159) | 159.0 | |
| Sept. 20, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 111.0 μg/m3 (78) | 97.0 μg/m3 (172) | 172.0 | |
| Sept. 20, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 154.0 μg/m3 (100) | 139.0 μg/m3 (194) | 194.0 | |
| Sept. 20, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 144.0 μg/m3 (94) | 135.0 μg/m3 (192) | 192.0 | |
| Sept. 20, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 133.0 μg/m3 (89) | 127.0 μg/m3 (188) | 188.0 | |
| Sept. 20, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 117.0 μg/m3 (81) | 111.0 μg/m3 (179) | 179.0 | |
| Sept. 20, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 114.0 μg/m3 (80) | 107.0 μg/m3 (177) | 177.0 | |
| Sept. 20, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 98.0 μg/m3 (72) | 90.0 μg/m3 (168) | 168.0 | |
| Sept. 20, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 88.0 μg/m3 (66) | 88.0 μg/m3 (167) | 167.0 | |
| Sept. 20, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 86.0 μg/m3 (66) | 84.0 μg/m3 (165) | 165.0 | |
| Sept. 20, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 93.0 μg/m3 (69) | 81.0 μg/m3 (163) | 163.0 | |
| Sept. 20, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 63.0 μg/m3 (54) | 62.0 μg/m3 (153) | 153.0 | |
| Sept. 20, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 μg/m3 (47) | 45.0 μg/m3 (124) | 124.0 | |
| Sept. 20, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 μg/m3 (36) | 33.0 μg/m3 (95) | 95.0 | |
| Sept. 20, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 μg/m3 (35) | 33.0 μg/m3 (95) | 95.0 | |
| Sept. 20, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 μg/m3 (30) | 34.0 μg/m3 (97) | 97.0 | |
| Sept. 20, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 μg/m3 (34) | 28.0 μg/m3 (84) | 84.0 | |
| Sept. 20, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 μg/m3 (25) | 23.0 μg/m3 (73) | 73.0 | |
| Sept. 20, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 μg/m3 (23) | 20.0 μg/m3 (67) | 67.0 | |
| Sept. 20, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 μg/m3 (28) | 24.0 μg/m3 (76) | 76.0 | |
| Sept. 20, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 μg/m3 (24) | 16.0 μg/m3 (59) | 59.0 | |
| Sept. 20, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 μg/m3 (30) | 20.0 μg/m3 (67) | 67.0 | |
| Sept. 20, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 μg/m3 (34) | 21.0 μg/m3 (69) | 69.0 | |
| Sept. 20, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 μg/m3 (37) | 26.0 μg/m3 (80) | 80.0 | |
| Sept. 19, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 μg/m3 (50) | 37.0 μg/m3 (104) | 104.0 | |
| Sept. 19, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 77.0 μg/m3 (61) | 64.0 μg/m3 (154) | 154.0 | |
| Sept. 19, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 108.0 μg/m3 (76) | 78.0 μg/m3 (162) | 162.0 | |
| Sept. 19, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 116.0 μg/m3 (80) | 91.0 μg/m3 (169) | 169.0 | |
| Sept. 19, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 82.0 μg/m3 (64) | 70.0 μg/m3 (158) | 158.0 | |
| Sept. 19, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 μg/m3 (36) | 31.0 μg/m3 (90) | 90.0 | |
| Sept. 19, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 μg/m3 (27) | 23.0 μg/m3 (73) | 73.0 | |
| Sept. 19, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 μg/m3 (31) | 27.0 μg/m3 (82) | 82.0 | |
| Sept. 19, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 μg/m3 (32) | 32.0 μg/m3 (93) | 93.0 | |
| Sept. 19, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 μg/m3 (35) | 28.0 μg/m3 (84) | 84.0 | |
| Sept. 19, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 μg/m3 (35) | 33.0 μg/m3 (95) | 95.0 | |
| Sept. 19, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 μg/m3 (41) | 41.0 μg/m3 (114) | 114.0 | |
| Sept. 19, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 μg/m3 (48) | 49.0 μg/m3 (134) | 134.0 | |
| Sept. 19, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 μg/m3 (50) | 49.0 μg/m3 (134) | 134.0 | |
| Sept. 19, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 56.0 μg/m3 (50) | 49.0 μg/m3 (134) | 134.0 | |
| Sept. 19, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 μg/m3 (48) | 48.0 μg/m3 (131) | 131.0 | |
| Sept. 19, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 57.0 μg/m3 (51) | 48.0 μg/m3 (131) | 131.0 | |
| Sept. 19, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 μg/m3 (50) | 48.0 μg/m3 (131) | 131.0 | |
| Sept. 19, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 μg/m3 (46) | 39.0 μg/m3 (109) | 109.0 | |
| Sept. 19, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 μg/m3 (40) | 32.0 μg/m3 (93) | 93.0 | |
| Sept. 19, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 71.0 μg/m3 (58) | 52.0 μg/m3 (141) | 141.0 | |
| Sept. 19, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 127.0 μg/m3 (86) | 109.0 μg/m3 (178) | 178.0 | |
| Sept. 19, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 155.0 μg/m3 (100) | 137.0 μg/m3 (193) | 193.0 | |
| Sept. 19, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 153.0 μg/m3 (99) | 134.0 μg/m3 (191) | 191.0 | |
| Sept. 18, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 153.0 μg/m3 (99) | 136.0 μg/m3 (192) | 192.0 | |
| Sept. 18, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 168.0 μg/m3 (106) | 137.0 μg/m3 (193) | 193.0 | |
| Sept. 18, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 140.0 μg/m3 (92) | 127.0 μg/m3 (188) | 188.0 | |
| Sept. 18, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 μg/m3 (30) | 29.0 μg/m3 (86) | 86.0 | |
| Sept. 18, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 μg/m3 (45) | 44.0 μg/m3 (121) | 121.0 | |
| Sept. 18, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 μg/m3 (19) | 16.0 μg/m3 (59) | 59.0 | |
| Sept. 18, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 μg/m3 (34) | 36.0 μg/m3 (101) | 101.0 | |
| Sept. 18, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 68.0 μg/m3 (56) | 67.0 μg/m3 (156) | 156.0 | |
| Sept. 18, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 166.0 μg/m3 (106) | 152.0 μg/m3 (202) | 202.0 | |
| Sept. 18, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 235.0 μg/m3 (140) | 220.0 μg/m3 (270) | 270.0 | |
| Sept. 18, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 247.0 μg/m3 (146) | 228.0 μg/m3 (278) | 278.0 | |
| Sept. 18, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 250.0 μg/m3 (148) | 240.0 μg/m3 (290) | 290.0 | |
| Sept. 18, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 256.0 μg/m3 (150) | 237.0 μg/m3 (286) | 286.0 | |
| Sept. 18, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 316.0 μg/m3 (180) | 277.0 μg/m3 (326) | 326.0 | |
| Sept. 18, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 304.0 μg/m3 (174) | 285.0 μg/m3 (334) | 334.0 | |
| Sept. 18, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 379.0 μg/m3 (234) | 364.0 μg/m3 (409) | 409.0 | |
| Sept. 18, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 390.0 μg/m3 (250) | 371.0 μg/m3 (414) | 414.0 | |
| Sept. 18, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 419.0 μg/m3 (291) | 401.0 μg/m3 (434) | 434.0 | |
| Sept. 18, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 452.0 μg/m3 (334) | 423.0 μg/m3 (448) | 448.0 | |
| Sept. 18, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 457.0 μg/m3 (340) | 429.0 μg/m3 (452) | 452.0 | |
| Sept. 18, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 429.0 μg/m3 (452) | 452.0 | |
| Sept. 18, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 587.0 μg/m3 (482) | 548.0 μg/m3 (532) | 532.0 | |
| Sept. 18, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 612.0 μg/m3 (574) | 574.0 | |
| Sept. 18, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 669.0 μg/m3 (612) | 612.0 | |
| Sept. 17, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 857.0 μg/m3 (752) | 798.0 μg/m3 (698) | 752.0 | |
| Sept. 17, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 854.0 μg/m3 (749) | 789.0 μg/m3 (692) | 749.0 | |
| Sept. 17, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 850.0 μg/m3 (745) | 787.0 μg/m3 (691) | 745.0 | |
| Sept. 17, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 838.0 μg/m3 (733) | 791.0 μg/m3 (694) | 733.0 | |
| Sept. 17, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 819.0 μg/m3 (714) | 770.0 μg/m3 (680) | 714.0 | |
| Sept. 17, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 839.0 μg/m3 (734) | 776.0 μg/m3 (684) | 734.0 | |
| Sept. 17, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 814.0 μg/m3 (709) | 764.0 μg/m3 (676) | 709.0 | |
| Sept. 17, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 750.0 μg/m3 (645) | 706.0 μg/m3 (637) | 645.0 | |
| Sept. 17, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 775.0 μg/m3 (670) | 737.0 μg/m3 (658) | 670.0 | |
| Sept. 17, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 622.0 μg/m3 (517) | 603.0 μg/m3 (568) | 568.0 | |
| Sept. 17, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 580.0 μg/m3 (475) | 563.0 μg/m3 (542) | 542.0 | |
| Sept. 17, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 542.0 μg/m3 (437) | 511.0 μg/m3 (507) | 507.0 | |
| Sept. 17, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 375.0 μg/m3 (229) | 355.0 μg/m3 (403) | 403.0 | |
| Sept. 17, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 362.0 μg/m3 (210) | 348.0 μg/m3 (398) | 398.0 | |
| Sept. 17, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 279.0 μg/m3 (162) | 261.0 μg/m3 (310) | 310.0 | |
| Sept. 17, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 265.0 μg/m3 (155) | 249.0 μg/m3 (298) | 298.0 | |
| Sept. 17, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 263.0 μg/m3 (154) | 246.0 μg/m3 (296) | 296.0 | |
| Sept. 17, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 290.0 μg/m3 (168) | 270.0 μg/m3 (320) | 320.0 | |
| Sept. 17, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 304.0 μg/m3 (174) | 279.0 μg/m3 (328) | 328.0 | |
| Sept. 17, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 309.0 μg/m3 (177) | 279.0 μg/m3 (328) | 328.0 | |
| Sept. 17, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 317.0 μg/m3 (181) | 286.0 μg/m3 (336) | 336.0 | |
| Sept. 17, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 331.0 μg/m3 (188) | 290.0 μg/m3 (340) | 340.0 | |
| Sept. 16, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 311.0 μg/m3 (178) | 282.0 μg/m3 (332) | 332.0 | |
| Sept. 16, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 357.0 μg/m3 (203) | 337.0 μg/m3 (386) | 386.0 | |
| Sept. 16, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 432.0 μg/m3 (309) | 406.0 μg/m3 (437) | 437.0 | |
| Sept. 16, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 443.0 μg/m3 (322) | 422.0 μg/m3 (448) | 448.0 | |
| Sept. 16, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 427.0 μg/m3 (302) | 405.0 μg/m3 (436) | 436.0 | |
| Sept. 16, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 423.0 μg/m3 (297) | 405.0 μg/m3 (436) | 436.0 | |
| Sept. 16, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 448.0 μg/m3 (329) | 429.0 μg/m3 (452) | 452.0 | |
| Sept. 16, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 466.0 μg/m3 (351) | 441.0 μg/m3 (460) | 460.0 | |
| Sept. 16, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 460.0 μg/m3 (344) | 438.0 μg/m3 (458) | 458.0 | |
| Sept. 16, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 444.0 μg/m3 (324) | 427.0 μg/m3 (451) | 451.0 | |
| Sept. 16, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 458.0 μg/m3 (341) | 435.0 μg/m3 (456) | 456.0 | |
| Sept. 16, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 450.0 μg/m3 (331) | 425.0 μg/m3 (450) | 450.0 | |
| Sept. 16, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 473.0 μg/m3 (360) | 458.0 μg/m3 (472) | 472.0 | |
| Sept. 16, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 480.0 μg/m3 (369) | 458.0 μg/m3 (472) | 472.0 | |
| Sept. 16, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 394.0 μg/m3 (256) | 376.0 μg/m3 (417) | 417.0 | |
| Sept. 16, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 332.0 μg/m3 (188) | 324.0 μg/m3 (374) | 374.0 | |
| Sept. 16, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 310.0 μg/m3 (178) | 297.0 μg/m3 (346) | 346.0 | |
| Sept. 16, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 333.0 μg/m3 (189) | 315.0 μg/m3 (364) | 364.0 | |
| Sept. 16, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 379.0 μg/m3 (234) | 359.0 μg/m3 (406) | 406.0 | |
| Sept. 16, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 419.0 μg/m3 (291) | 395.0 μg/m3 (430) | 430.0 | |
| Sept. 16, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 427.0 μg/m3 (302) | 409.0 μg/m3 (439) | 439.0 | |
| Sept. 16, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 447.0 μg/m3 (328) | 408.0 μg/m3 (438) | 438.0 | |
| Sept. 16, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 442.0 μg/m3 (321) | 411.0 μg/m3 (440) | 440.0 | |
| Sept. 16, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 441.0 μg/m3 (320) | 420.0 μg/m3 (446) | 446.0 | |
| Sept. 15, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 452.0 μg/m3 (334) | 427.0 μg/m3 (451) | 451.0 | |
| Sept. 15, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 452.0 μg/m3 (334) | 425.0 μg/m3 (450) | 450.0 | |
| Sept. 15, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 456.0 μg/m3 (339) | 420.0 μg/m3 (446) | 446.0 | |
| Sept. 15, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 450.0 μg/m3 (331) | 420.0 μg/m3 (446) | 446.0 | |
| Sept. 15, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 454.0 μg/m3 (336) | 423.0 μg/m3 (448) | 448.0 | |
| Sept. 15, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 448.0 μg/m3 (329) | 421.0 μg/m3 (447) | 447.0 | |
| Sept. 15, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 466.0 μg/m3 (351) | 438.0 μg/m3 (458) | 458.0 | |
| Sept. 15, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 476.0 μg/m3 (364) | 440.0 μg/m3 (460) | 460.0 | |
| Sept. 15, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 492.0 μg/m3 (384) | 444.0 μg/m3 (462) | 462.0 | |
| Sept. 15, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 472.0 μg/m3 (359) | 447.0 μg/m3 (464) | 464.0 | |
| Sept. 15, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 471.0 μg/m3 (358) | 449.0 μg/m3 (466) | 466.0 | |
| Sept. 15, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 510.0 μg/m3 (405) | 489.0 μg/m3 (492) | 492.0 | |
| Sept. 15, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 520.0 μg/m3 (415) | 496.0 μg/m3 (497) | 497.0 | |
| Sept. 15, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 514.0 μg/m3 (409) | 500.0 μg/m3 (500) | 500.0 | |
| Sept. 15, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 387.0 μg/m3 (246) | 368.0 μg/m3 (412) | 412.0 | |
| Sept. 15, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 247.0 μg/m3 (146) | 235.0 μg/m3 (284) | 284.0 | |
| Sept. 15, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 231.0 μg/m3 (138) | 217.0 μg/m3 (266) | 266.0 | |
| Sept. 15, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 225.0 μg/m3 (135) | 215.0 μg/m3 (264) | 264.0 | |
| Sept. 15, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 209.0 μg/m3 (127) | 198.0 μg/m3 (248) | 248.0 | |
| Sept. 15, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 224.0 μg/m3 (134) | 203.0 μg/m3 (252) | 252.0 | |
| Sept. 15, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 284.0 μg/m3 (164) | 260.0 μg/m3 (310) | 310.0 | |
| Sept. 15, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 342.0 μg/m3 (194) | 312.0 μg/m3 (362) | 362.0 | |
| Sept. 15, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 362.0 μg/m3 (210) | 333.0 μg/m3 (382) | 382.0 | |
| Sept. 15, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 364.0 μg/m3 (213) | 331.0 μg/m3 (380) | 380.0 | |
| Sept. 14, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 366.0 μg/m3 (216) | 338.0 μg/m3 (388) | 388.0 | |
| Sept. 14, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 361.0 μg/m3 (209) | 331.0 μg/m3 (380) | 380.0 | |
| Sept. 14, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 343.0 μg/m3 (194) | 324.0 μg/m3 (374) | 374.0 | |
| Sept. 14, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 335.0 μg/m3 (190) | 317.0 μg/m3 (366) | 366.0 | |
| Sept. 14, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 342.0 μg/m3 (194) | N/A | 194.0 | |
| Sept. 14, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 342.0 μg/m3 (194) | 328.0 μg/m3 (378) | 378.0 | |
| Sept. 14, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 352.0 μg/m3 (198) | 331.0 μg/m3 (380) | 380.0 | |
| Sept. 14, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 375.0 μg/m3 (229) | 337.0 μg/m3 (386) | 386.0 | |
| Sept. 14, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 373.0 μg/m3 (226) | 349.0 μg/m3 (398) | 398.0 | |
| Sept. 14, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 385.0 μg/m3 (243) | 368.0 μg/m3 (412) | 412.0 | |
| Sept. 14, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 389.0 μg/m3 (249) | 337.0 μg/m3 (386) | 386.0 | |
| Sept. 14, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 319.0 μg/m3 (182) | 300.0 μg/m3 (350) | 350.0 | |
| Sept. 14, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 295.0 μg/m3 (170) | 282.0 μg/m3 (332) | 332.0 | |
| Sept. 14, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 290.0 μg/m3 (168) | 280.0 μg/m3 (330) | 330.0 | |
| Sept. 14, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 248.0 μg/m3 (146) | 229.0 μg/m3 (278) | 278.0 | |
| Sept. 14, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 259.0 μg/m3 (308) | 308.0 |