AQSQID: 000094401

Site Name: St. Lina

Location: Range Rd 110, CC

Reporting: True, Located: True

Current AQI: 39.0

Range Rd 110 CC, CA: 54.216473, -111.50264

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 23, 2019, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (39) N/A N/A 1.5 μg/m3 (6) 39.0
 
March 23, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 2.1 μg/m3 (9) 40.0
 
March 23, 2019, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) N/A N/A 2.8 μg/m3 (12) 38.0
 
March 23, 2019, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 3.0 μg/m3 (12) 37.0
 
March 23, 2019, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 45.0 ppb (35) N/A N/A 3.4 μg/m3 (14) 35.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 4.1 μg/m3 (17) 32.0
 
March 23, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 5.5 μg/m3 (23) 29.0
 
March 23, 2019, noon N/A N/A N/A 16.0 ppb (15) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 23, 2019, 11 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 13.8 μg/m3 (54) 54.0
 
March 23, 2019, 10 a.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 24.6 μg/m3 (77) 77.0
 
March 23, 2019, 9 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 23.0 μg/m3 (73) 73.0
 
March 23, 2019, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 51.0 ppb (39) N/A N/A 20.0 μg/m3 (67) 67.0
 
March 23, 2019, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 17.3 μg/m3 (61) 61.0
 
March 23, 2019, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 15.9 μg/m3 (58) 58.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.6 μg/m3 (66) 66.0
 
March 23, 2019, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 55.0 ppb (42) N/A N/A 20.0 μg/m3 (67) 67.0
 
March 23, 2019, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 16.4 μg/m3 (59) 59.0
 
March 23, 2019, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 14.5 μg/m3 (55) 55.0
 
March 23, 2019, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 51.0 ppb (39) N/A N/A 11.4 μg/m3 (48) 48.0
 
March 23, 2019, midnight N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 51.0 ppb (39) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 22, 2019, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 11.1 μg/m3 (46) 46.0
 
March 22, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 51.0 ppb (39) N/A N/A 11.6 μg/m3 (48) 48.0
 
March 22, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 50.0 ppb (38) N/A N/A 11.9 μg/m3 (50) 50.0
 
March 22, 2019, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 11.5 μg/m3 (48) 48.0
 
March 22, 2019, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 12.8 μg/m3 (52) 52.0
 
March 22, 2019, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 12.6 μg/m3 (51) 51.0
 
March 22, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 12.1 μg/m3 (50) 50.0
 
March 22, 2019, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 12.2 μg/m3 (50) 50.0
 
March 22, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 12.5 μg/m3 (51) 51.0
 
March 22, 2019, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 22, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 22, 2019, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 13.1 μg/m3 (52) 52.0
 
March 22, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 13.2 μg/m3 (53) 53.0
 
March 22, 2019, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 12.9 μg/m3 (52) 52.0
 
March 22, 2019, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 13.2 μg/m3 (53) 53.0
 
March 22, 2019, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 13.6 μg/m3 (53) 53.0
 
March 22, 2019, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 13.9 μg/m3 (54) 54.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 22, 2019, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 22, 2019, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 8.9 μg/m3 (37) 41.0
 
March 22, 2019, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 7.5 μg/m3 (31) 42.0
 
March 22, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 57.0 ppb (44) N/A N/A 7.6 μg/m3 (32) 44.0
 
March 22, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 60.0 ppb (46) N/A N/A 8.3 μg/m3 (35) 46.0
 
March 22, 2019, midnight N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 63.0 ppb (48) N/A N/A 8.3 μg/m3 (35) 48.0
 
March 21, 2019, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 65.0 ppb (50) N/A N/A 9.4 μg/m3 (39) 50.0
 
March 21, 2019, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 67.0 ppb (52) N/A N/A 10.0 μg/m3 (42) 52.0
 
March 21, 2019, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 68.0 ppb (52) N/A N/A 9.6 μg/m3 (40) 52.0
 
March 21, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 67.0 ppb (52) N/A N/A 10.6 μg/m3 (44) 52.0
 
March 21, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 63.0 ppb (48) N/A N/A 9.2 μg/m3 (38) 48.0
 
March 21, 2019, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 58.0 ppb (45) N/A N/A 6.1 μg/m3 (25) 45.0
 
March 21, 2019, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
March 21, 2019, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 4.4 μg/m3 (18) 40.0
 
March 21, 2019, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 4.4 μg/m3 (18) 40.0
 
March 21, 2019, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 4.7 μg/m3 (20) 40.0
 
March 21, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 5.3 μg/m3 (22) 40.0
 
March 21, 2019, noon N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 55.0 ppb (42) N/A N/A 5.9 μg/m3 (25) 42.0
 
March 21, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 57.0 ppb (44) N/A N/A 6.9 μg/m3 (29) 44.0
 
March 21, 2019, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 61.0 ppb (47) N/A N/A 9.2 μg/m3 (38) 47.0
 
March 21, 2019, 9 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 63.0 ppb (48) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 21, 2019, 8 a.m. N/A N/A N/A 9.0 ppb (8) N/A 2.0 ppb (3) 58.0 ppb (45) N/A N/A 10.1 μg/m3 (42) 45.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
March 21, 2019, 6 a.m. N/A N/A N/A 10.0 ppb (9) N/A 4.0 ppb (6) 63.0 ppb (48) N/A N/A 15.2 μg/m3 (57) 57.0
 
March 21, 2019, 5 a.m. N/A N/A N/A 10.0 ppb (9) N/A 3.0 ppb (4) 67.0 ppb (52) N/A N/A 23.8 μg/m3 (75) 75.0
 
March 21, 2019, 4 a.m. N/A N/A N/A 9.0 ppb (8) N/A 3.0 ppb (4) 70.0 ppb (54) N/A N/A 22.8 μg/m3 (73) 73.0
 
March 21, 2019, 3 a.m. N/A N/A N/A 8.0 ppb (7) N/A 3.0 ppb (4) 74.0 ppb (57) N/A N/A 20.0 μg/m3 (67) 67.0
 
March 21, 2019, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A 4.0 ppb (6) 76.0 ppb (59) N/A N/A 16.4 μg/m3 (59) 59.0
 
March 21, 2019, 1 a.m. N/A N/A N/A 7.0 ppb (6) N/A 5.0 ppb (7) 77.0 ppb (60) N/A N/A 13.2 μg/m3 (53) 60.0
 
March 21, 2019, midnight N/A N/A N/A 5.0 ppb (5) N/A 3.0 ppb (4) 80.0 ppb (62) N/A N/A 9.7 μg/m3 (40) 62.0
 
March 20, 2019, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 79.0 ppb (62) N/A N/A 8.7 μg/m3 (36) 62.0
 
March 20, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 78.0 ppb (61) N/A N/A N/A 61.0
 
March 20, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A N/A N/A N/A 4.0
 
March 20, 2019, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A N/A N/A 6.3 μg/m3 (26) 26.0
 
March 20, 2019, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
March 20, 2019, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A 3.0 ppb (4) N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
March 20, 2019, 5 p.m. N/A N/A N/A 7.0 ppb (6) N/A 3.0 ppb (4) N/A N/A N/A 16.6 μg/m3 (60) 60.0
 
March 20, 2019, 4 p.m. N/A N/A N/A 9.0 ppb (8) N/A 3.0 ppb (4) 48.0 ppb (37) N/A N/A 18.8 μg/m3 (64) 64.0
 
March 20, 2019, 3 p.m. N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) 44.0 ppb (34) N/A N/A 20.8 μg/m3 (69) 69.0
 
March 20, 2019, 2 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 16.2 μg/m3 (59) 59.0
 
March 20, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 13.2 μg/m3 (53) 53.0
 
March 20, 2019, noon N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 56.0 ppb (43) N/A N/A 9.6 μg/m3 (40) 43.0
 
March 20, 2019, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 57.0 ppb (44) N/A N/A 5.7 μg/m3 (24) 44.0
 
March 20, 2019, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 58.0 ppb (45) N/A N/A 5.2 μg/m3 (22) 45.0
 
March 20, 2019, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 58.0 ppb (45) N/A N/A 4.9 μg/m3 (20) 45.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
March 20, 2019, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 58.0 ppb (45) N/A N/A 5.8 μg/m3 (24) 45.0
 
March 20, 2019, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 57.0 ppb (44) N/A N/A 5.9 μg/m3 (25) 44.0
 
March 20, 2019, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) N/A N/A 4.1 μg/m3 (17) 42.0
 
March 20, 2019, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) N/A N/A 4.1 μg/m3 (17) 42.0
 
March 20, 2019, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 59.0 ppb (45) N/A N/A 5.6 μg/m3 (23) 45.0
 
March 20, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 62.0 ppb (48) N/A N/A 4.8 μg/m3 (20) 48.0
 
March 20, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 63.0 ppb (48) N/A N/A 4.4 μg/m3 (18) 48.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 63.0 ppb (48) N/A N/A 4.4 μg/m3 (18) 48.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 63.0 ppb (48) N/A N/A 4.2 μg/m3 (18) 48.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 4.6 μg/m3 (19) 49.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 4.7 μg/m3 (20) 48.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 3.6 μg/m3 (15) 44.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 2.6 μg/m3 (11) 42.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 2.7 μg/m3 (11) 42.0
 
March 19, 2019, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 55.0 ppb (42) N/A N/A 2.9 μg/m3 (12) 42.0
 
March 19, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 3.1 μg/m3 (13) 42.0
 
March 19, 2019, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (39) N/A N/A 3.5 μg/m3 (15) 39.0
 
March 19, 2019, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 49.0 ppb (38) N/A N/A 4.4 μg/m3 (18) 38.0
 
March 19, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 5.4 μg/m3 (23) 37.0
 
March 19, 2019, noon N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 45.0 ppb (35) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 19, 2019, 11 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 10.3 μg/m3 (43) 43.0
 
March 19, 2019, 10 a.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 44.0 ppb (34) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
March 19, 2019, 8 a.m. N/A N/A N/A 8.0 ppb (7) N/A 3.0 ppb (4) 47.0 ppb (36) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 19, 2019, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 19, 2019, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 19, 2019, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) 54.0 ppb (42) N/A N/A 10.4 μg/m3 (43) 43.0
 
March 19, 2019, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) 55.0 ppb (42) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 19, 2019, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 4.0 ppb (6) 56.0 ppb (43) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 19, 2019, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A 5.0 ppb (7) 57.0 ppb (44) N/A N/A 10.2 μg/m3 (42) 44.0
 
March 19, 2019, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A 3.0 ppb (4) 58.0 ppb (45) N/A N/A 9.9 μg/m3 (41) 45.0
 
March 19, 2019, midnight N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 60.0 ppb (46) N/A N/A 9.7 μg/m3 (40) 46.0
 
March 18, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 62.0 ppb (48) N/A N/A 4.9 μg/m3 (20) 48.0
 
March 18, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 62.0 ppb (48) N/A N/A 4.5 μg/m3 (19) 48.0
 
March 18, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 60.0 ppb (46) N/A N/A 4.5 μg/m3 (19) 46.0
 
March 18, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 58.0 ppb (45) N/A N/A 4.2 μg/m3 (18) 45.0
 
March 18, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 57.0 ppb (44) N/A N/A 4.6 μg/m3 (19) 44.0
 
March 18, 2019, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 56.0 ppb (43) N/A N/A 4.7 μg/m3 (20) 43.0
 
March 18, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) N/A N/A 3.9 μg/m3 (16) 42.0
 
March 18, 2019, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 3.6 μg/m3 (15) 42.0
 
March 18, 2019, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 3.5 μg/m3 (15) 42.0
 
March 18, 2019, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 3.3 μg/m3 (14) 42.0
 
March 18, 2019, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) N/A N/A 3.3 μg/m3 (14) 42.0
 
March 18, 2019, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) N/A N/A 3.2 μg/m3 (13) 42.0
 
March 18, 2019, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) N/A N/A 3.0 μg/m3 (12) 42.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
March 18, 2019, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 2.8 μg/m3 (12) 42.0
 
March 18, 2019, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 2.6 μg/m3 (11) 41.0
 
March 18, 2019, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 2.6 μg/m3 (11) 41.0
 
March 18, 2019, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 2.4 μg/m3 (10) 41.0
 
March 18, 2019, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) N/A N/A 2.6 μg/m3 (11) 42.0
 
March 18, 2019, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 56.0 ppb (43) N/A N/A 3.1 μg/m3 (13) 43.0
 
March 18, 2019, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 58.0 ppb (45) N/A N/A 4.3 μg/m3 (18) 45.0
 
March 18, 2019, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 57.0 ppb (44) N/A N/A 3.6 μg/m3 (15) 44.0
 
March 18, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 58.0 ppb (45) N/A N/A 3.4 μg/m3 (14) 45.0
 
March 18, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 59.0 ppb (45) N/A N/A 3.6 μg/m3 (15) 45.0
 
March 17, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 59.0 ppb (45) N/A N/A 3.4 μg/m3 (14) 45.0
 
March 17, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 59.0 ppb (45) N/A N/A 3.9 μg/m3 (16) 45.0
 
March 17, 2019, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 58.0 ppb (45) N/A N/A 4.5 μg/m3 (19) 45.0
 
March 17, 2019, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 56.0 ppb (43) N/A N/A 7.1 μg/m3 (30) 43.0
 
March 17, 2019, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 8.6 μg/m3 (36) 41.0
 
March 17, 2019, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) 52.0 ppb (40) N/A N/A 10.8 μg/m3 (45) 45.0
 
March 17, 2019, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) 50.0 ppb (38) N/A N/A 12.1 μg/m3 (50) 50.0
 
March 17, 2019, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 48.0 ppb (37) N/A N/A 13.2 μg/m3 (53) 53.0
 
March 17, 2019, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 13.3 μg/m3 (53) 53.0
 
March 17, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 13.6 μg/m3 (53) 53.0
 
March 17, 2019, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 15.2 μg/m3 (57) 57.0
 
March 17, 2019, noon N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 14.7 μg/m3 (56) 56.0
 
March 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 17, 2019, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 11.4 μg/m3 (48) 48.0
 
March 17, 2019, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 55.0 ppb (42) N/A N/A 9.7 μg/m3 (40) 42.0
 
March 17, 2019, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A 2.0 ppb (3) 57.0 ppb (44) N/A N/A 8.6 μg/m3 (36) 44.0
 
March 17, 2019, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 58.0 ppb (45) N/A N/A 6.9 μg/m3 (29) 45.0
 
March 17, 2019, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 59.0 ppb (45) N/A N/A 6.6 μg/m3 (28) 45.0
 
March 17, 2019, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 60.0 ppb (46) N/A N/A 6.8 μg/m3 (28) 46.0
 
March 17, 2019, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 59.0 ppb (45) N/A N/A 5.8 μg/m3 (24) 45.0
 
March 17, 2019, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 58.0 ppb (45) N/A N/A 4.6 μg/m3 (19) 45.0
 
March 17, 2019, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 58.0 ppb (45) N/A N/A 5.1 μg/m3 (21) 45.0
 
March 17, 2019, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 3.4 μg/m3 (14) 42.0
 
March 17, 2019, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 3.0 μg/m3 (12) 41.0
 
March 16, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 2.6 μg/m3 (11) 41.0
 
March 16, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 2.1 μg/m3 (9) 40.0
 
March 16, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (40) N/A N/A 2.3 μg/m3 (10) 40.0
 
March 16, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 2.6 μg/m3 (11) 42.0