ID: 2002

AQSQID: 060792007

Site Name: Nipomo Mesa Cdf

Added: April 21, 2020, 6:24 p.m.

Updated: Feb. 28, 2021, 6:32 a.m.

Location: Arroyo Grande (Willow Rd), CA

Reporting: True, Located: True

Current AQI: 62.0

Arroyo Grande (Willow Rd) CA, US: 35.04676, -120.58777

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (38) 17.0 μg/m3 (62) 62.0
 
Feb. 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (43) 18.0 μg/m3 (64) 64.0
 
Feb. 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (52) 21.0 μg/m3 (70) 70.0
 
Feb. 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.0 μg/m3 (50) 13.0 μg/m3 (53) 53.0
 
Feb. 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 83.0 μg/m3 (65) 19.0 μg/m3 (66) 66.0
 
Feb. 28, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 193.0 μg/m3 (120) 42.0 μg/m3 (118) 120.0
 
Feb. 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 256.0 μg/m3 (152) 51.0 μg/m3 (140) 152.0
 
Feb. 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 282.0 μg/m3 (165) 54.0 μg/m3 (147) 165.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 273.0 μg/m3 (160) 61.0 μg/m3 (154) 160.0
 
Feb. 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 133.0 μg/m3 (90) 30.0 μg/m3 (89) 90.0
 
Feb. 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 6.0 μg/m3 (25) 27.0
 
Feb. 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 8.0 μg/m3 (34) 34.0
 
Feb. 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 11.0 μg/m3 (46) 46.0
 
Feb. 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
Feb. 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Feb. 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 8.0 μg/m3 (34) 34.0
 
Feb. 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
Feb. 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 9.0 μg/m3 (38) 38.0
 
Feb. 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Feb. 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 13.0 μg/m3 (53) 53.0
 
Feb. 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
Feb. 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
Feb. 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (35) 17.0 μg/m3 (62) 62.0
 
Feb. 27, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (44) 19.0 μg/m3 (66) 66.0
 
Feb. 27, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 70.0 μg/m3 (59) 11.0 μg/m3 (46) 59.0
 
Feb. 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.0 μg/m3 (48) 19.0 μg/m3 (66) 66.0
 
Feb. 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 60.0 μg/m3 (54) 18.0 μg/m3 (64) 64.0
 
Feb. 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 84.0 μg/m3 (66) 15.0 μg/m3 (58) 66.0
 
Feb. 27, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 132.0 μg/m3 (90) 27.0 μg/m3 (83) 90.0
 
Feb. 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 173.0 μg/m3 (110) 40.0 μg/m3 (113) 113.0
 
Feb. 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 265.0 μg/m3 (156) 58.0 μg/m3 (153) 156.0
 
Feb. 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 276.0 μg/m3 (162) 63.0 μg/m3 (155) 162.0
 
Feb. 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 103.0 μg/m3 (75) 22.0 μg/m3 (72) 75.0
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.0 μg/m3 (49) 11.0 μg/m3 (46) 49.0
 
Feb. 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (57) 13.0 μg/m3 (53) 57.0
 
Feb. 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (45) 7.0 μg/m3 (30) 45.0
 
Feb. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 179.0 μg/m3 (113) 18.0 μg/m3 (64) 113.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (53) 9.0 μg/m3 (38) 53.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (38) 9.0 μg/m3 (38) 38.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 7.0 μg/m3 (30) 30.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 8.0 μg/m3 (34) 34.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 10.0 μg/m3 (42) 42.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 6.0 μg/m3 (25) 25.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 6.0 μg/m3 (25) 26.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (37) 9.0 μg/m3 (38) 38.0
 
Feb. 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 66.0 μg/m3 (57) 14.0 μg/m3 (55) 57.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 6.0 μg/m3 (25) 25.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (35) 6.0 μg/m3 (25) 35.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.0 μg/m3 (54) 10.0 μg/m3 (42) 54.0
 
Feb. 26, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 82.0 μg/m3 (65) 17.0 μg/m3 (62) 65.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 129.0 μg/m3 (88) 27.0 μg/m3 (83) 88.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 102.0 μg/m3 (75) 23.0 μg/m3 (74) 75.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (41) 9.0 μg/m3 (38) 41.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (33) 5.0 μg/m3 (21) 33.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 0.0 μg/m3 (0) 18.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 0.0 μg/m3 (0) 21.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 3.0 μg/m3 (13) 25.0
 
Feb. 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (35) 4.0 μg/m3 (17) 35.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 2.0 μg/m3 (9) 17.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 2.0 μg/m3 (9) 16.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 2.0 μg/m3 (9) 14.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 1.0 μg/m3 (5) 13.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 1.0 μg/m3 (5) 10.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
Feb. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 9.0 μg/m3 (38) 38.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (41) 16.0 μg/m3 (60) 60.0
 
Feb. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 70.0 μg/m3 (59) 18.0 μg/m3 (64) 64.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 65.0 μg/m3 (56) 17.0 μg/m3 (62) 62.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 65.0 μg/m3 (56) 20.0 μg/m3 (68) 68.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 74.0 μg/m3 (61) 22.0 μg/m3 (72) 72.0
 
Feb. 25, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 88.0 μg/m3 (68) 28.0 μg/m3 (85) 85.0
 
Feb. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 134.0 μg/m3 (91) 35.0 μg/m3 (100) 100.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 165.0 μg/m3 (106) 40.0 μg/m3 (113) 113.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 211.0 μg/m3 (129) 51.0 μg/m3 (140) 140.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 136.0 μg/m3 (92) 33.0 μg/m3 (95) 95.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (52) 8.0 μg/m3 (34) 52.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (44) 7.0 μg/m3 (30) 44.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (42) 4.0 μg/m3 (17) 42.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (36) 5.0 μg/m3 (21) 36.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 5.0 μg/m3 (21) 24.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 4.0 μg/m3 (17) 23.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (35) 8.0 μg/m3 (34) 35.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 7.0 μg/m3 (30) 30.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 2.0 μg/m3 (9) 17.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 5.0 μg/m3 (21) 24.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 7.0 μg/m3 (30) 30.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 4.0 μg/m3 (17) 24.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 8.0 μg/m3 (34) 34.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 10.0 μg/m3 (42) 42.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 5.0 μg/m3 (21) 26.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (39) 8.0 μg/m3 (34) 39.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 74.0 μg/m3 (61) 9.0 μg/m3 (38) 61.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (33) 11.0 μg/m3 (46) 46.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 7.0 μg/m3 (30) 30.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 5.0 μg/m3 (21) 21.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 8.0 μg/m3 (34) 34.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (37) 13.0 μg/m3 (53) 53.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (31) 8.0 μg/m3 (34) 34.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 4.0 μg/m3 (17) 29.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (38) 6.0 μg/m3 (25) 38.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (28) 6.0 μg/m3 (25) 28.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 4.0 μg/m3 (17) 22.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 4.0 μg/m3 (17) 17.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 3.0 μg/m3 (13) 20.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 4.0 μg/m3 (17) 26.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 4.0 μg/m3 (17) 22.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 6.0 μg/m3 (25) 25.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 8.0 μg/m3 (34) 34.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 77.0 μg/m3 (62) 14.0 μg/m3 (55) 62.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 12.0 μg/m3 (50) 50.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 7.0 μg/m3 (30) 30.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 0.0 μg/m3 (0) 13.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 0.0 μg/m3 (0) 9.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 2.0 μg/m3 (9) 9.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 2.0 μg/m3 (9) 14.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 7.0 μg/m3 (30) 32.0
 
Feb. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (43) 11.0 μg/m3 (46) 46.0
 
Feb. 22, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 108.0 μg/m3 (78) 20.0 μg/m3 (68) 78.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 85.0 μg/m3 (66) 15.0 μg/m3 (58) 66.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 99.0 μg/m3 (73) 18.0 μg/m3 (64) 73.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 1.0
 
Feb. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -1.0 μg/m3 (0) 3.0
 
Feb. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 1.0 μg/m3 (5) 7.0
 
Feb. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 1.0 μg/m3 (5) 8.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 2.0 μg/m3 (9) 9.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Feb. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -3.0 μg/m3 (0) 3.0 μg/m3 (13) 13.0
 
Feb. 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A -2.0 μg/m3 (0) 1.0 μg/m3 (5) 5.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.0 μg/m3 (5) 5.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 17.0
 
Feb. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Feb. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 10.0 μg/m3 (42) 42.0
 
Feb. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Feb. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 2.0 μg/m3 (9) 15.0