AQSQID: 060655001

Site Name: Palm Springs - Fire Station

Location: Palm Spgs, CA

Reporting: True, Located: True

Current AQI: 25.0

Palm Spgs CA, US: 33.8497, -116.54

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 19, 2019, 6 a.m. 10.8 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) 0.18 ppb (2) 13.0 μg/m3 (12) N/A 25.0
 
March 19, 2019, 5 a.m. 6.2 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (33) 0.14 ppb (2) 19.0 μg/m3 (17) N/A 33.0
 
March 19, 2019, 4 a.m. 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (39) 0.14 ppb (2) 14.0 μg/m3 (13) N/A 39.0
 
March 19, 2019, 3 a.m. 3.3 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) 0.14 ppb (2) 15.0 μg/m3 (14) N/A 40.0
 
March 19, 2019, 2 a.m. 7.6 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) 0.16 ppb (2) 16.0 μg/m3 (15) N/A 32.0
 
March 19, 2019, 1 a.m. 13.0 ppb (12) 1.2 ppb (1) N/A 12.0 ppb (11) N/A N/A 38.0 ppb (29) 0.23 ppb (3) 19.0 μg/m3 (17) N/A 29.0
 
March 19, 2019, midnight 4.6 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (38) 0.16 ppb (2) 15.0 μg/m3 (14) N/A 38.0
 
March 18, 2019, 11 p.m. 2.7 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (42) 0.14 ppb (2) 11.0 μg/m3 (10) N/A 42.0
 
March 18, 2019, 10 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) 0.14 ppb (2) 14.0 μg/m3 (13) N/A 42.0
 
March 18, 2019, 9 p.m. 3.9 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) 0.14 ppb (2) 16.0 μg/m3 (15) N/A 43.0
 
March 18, 2019, 8 p.m. 3.3 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (41) 0.15 ppb (2) 14.0 μg/m3 (13) N/A 41.0
 
March 18, 2019, 7 p.m. 4.4 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (41) 0.14 ppb (2) 14.0 μg/m3 (13) N/A 41.0
 
March 18, 2019, 6 p.m. 9.2 ppb (9) 2.3 ppb (2) N/A 7.0 ppb (6) N/A N/A 48.0 ppb (37) 0.16 ppb (2) 12.0 μg/m3 (11) N/A 37.0
 
March 18, 2019, 5 p.m. 8.4 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 45.0 ppb (35) 0.14 ppb (2) 9.0 μg/m3 (8) N/A 35.0
 
March 18, 2019, 4 p.m. 7.6 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) 0.15 ppb (2) 12.0 μg/m3 (11) N/A 31.0
 
March 18, 2019, 3 p.m. 16.1 ppb (15) 3.6 ppb (3) N/A 12.0 ppb (11) N/A N/A 30.0 ppb (23) 0.2 ppb (2) 16.0 μg/m3 (15) N/A 23.0
 
March 18, 2019, 2 p.m. 16.5 ppb (15) 2.0 ppb (2) N/A 14.0 ppb (13) N/A N/A 25.0 ppb (19) 0.2 ppb (2) 15.0 μg/m3 (14) N/A 19.0
 
March 18, 2019, 1 p.m. 11.1 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 29.0 ppb (22) 0.16 ppb (2) 12.0 μg/m3 (11) N/A 22.0
 
March 18, 2019, noon 9.2 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.15 ppb (2) 10.0 μg/m3 (9) N/A 23.0
 
March 18, 2019, 11 a.m. 9.2 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) 0.14 ppb (2) 11.0 μg/m3 (10) N/A 22.0
 
March 18, 2019, 10 a.m. 8.9 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 27.0 ppb (21) 0.16 ppb (2) 11.0 μg/m3 (10) N/A 21.0
 
March 18, 2019, 9 a.m. 15.1 ppb (14) 0.4 ppb (0) N/A 15.0 ppb (14) N/A N/A 25.0 ppb (19) 0.16 ppb (2) 11.0 μg/m3 (10) N/A 19.0
 
March 18, 2019, 8 a.m. 12.9 ppb (12) 0.4 ppb (0) N/A 13.0 ppb (12) N/A N/A 28.0 ppb (22) 0.16 ppb (2) 13.0 μg/m3 (12) N/A 22.0
 
March 18, 2019, 7 a.m. 10.7 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 31.0 ppb (24) 0.15 ppb (2) 11.0 μg/m3 (10) N/A 24.0
 
March 18, 2019, 6 a.m. 13.8 ppb (13) 0.4 ppb (0) N/A 13.0 ppb (12) N/A N/A 28.0 ppb (22) 0.17 ppb (2) 12.0 μg/m3 (11) N/A 22.0
 
March 18, 2019, 5 a.m. 12.8 ppb (12) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 28.0 ppb (22) 0.18 ppb (2) 8.0 μg/m3 (7) N/A 22.0
 
March 18, 2019, 4 a.m. 14.0 ppb (13) 0.7 ppb (1) N/A 13.0 ppb (12) N/A N/A 20.0 ppb (15) 0.22 ppb (2) 18.0 μg/m3 (16) N/A 16.0
 
March 18, 2019, 3 a.m. 12.2 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 26.0 ppb (20) 0.23 ppb (3) 19.0 μg/m3 (17) N/A 20.0
 
March 18, 2019, 2 a.m. 12.6 ppb (12) 1.2 ppb (1) N/A 11.0 ppb (10) N/A N/A 31.0 ppb (24) 0.31 ppb (3) 24.0 μg/m3 (22) N/A 24.0
 
March 18, 2019, 1 a.m. 3.8 ppb (4) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) 0.16 ppb (2) 8.0 μg/m3 (7) N/A 35.0
 
March 18, 2019, midnight 3.5 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (41) 0.15 ppb (2) 12.0 μg/m3 (11) N/A 41.0
 
March 17, 2019, 11 p.m. 3.8 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) 0.14 ppb (2) 10.0 μg/m3 (9) N/A 40.0
 
March 17, 2019, 10 p.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (41) 0.13 ppb (1) 11.0 μg/m3 (10) N/A 41.0
 
March 17, 2019, 9 p.m. 4.4 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (39) 0.15 ppb (2) 11.0 μg/m3 (10) N/A 39.0
 
March 17, 2019, 8 p.m. 3.0 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) 0.14 ppb (2) 13.0 μg/m3 (12) N/A 40.0
 
March 17, 2019, 7 p.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) 0.13 ppb (1) 19.0 μg/m3 (17) N/A 40.0
 
March 17, 2019, 6 p.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) 0.12 ppb (1) 13.0 μg/m3 (12) N/A 40.0
 
March 17, 2019, 5 p.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) 0.12 ppb (1) 11.0 μg/m3 (10) N/A 37.0
 
March 17, 2019, 4 p.m. 21.1 ppb (20) 10.0 ppb (9) N/A 11.0 ppb (10) N/A N/A 35.0 ppb (27) 0.2 ppb (2) 11.0 μg/m3 (10) N/A 27.0
 
March 17, 2019, 3 p.m. 14.8 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A N/A 27.0 ppb (21) 0.19 ppb (2) 15.0 μg/m3 (14) N/A 21.0
 
March 17, 2019, 2 p.m. 18.6 ppb (17) 3.8 ppb (4) N/A 15.0 ppb (14) N/A N/A 23.0 ppb (18) 0.24 ppb (3) 17.0 μg/m3 (15) N/A 18.0
 
March 17, 2019, 1 p.m. 20.7 ppb (19) 3.6 ppb (3) N/A 17.0 ppb (16) N/A N/A 22.0 ppb (17) 0.18 ppb (2) 16.0 μg/m3 (15) N/A 19.0
 
March 17, 2019, noon 9.8 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.17 ppb (2) 15.0 μg/m3 (14) N/A 20.0
 
March 17, 2019, 11 a.m. 14.1 ppb (13) 1.3 ppb (1) N/A 13.0 ppb (12) N/A N/A 27.0 ppb (21) 0.15 ppb (2) 13.0 μg/m3 (12) N/A 21.0
 
March 17, 2019, 10 a.m. 27.2 ppb (25) 10.6 ppb (10) N/A 17.0 ppb (16) N/A N/A 27.0 ppb (21) 0.17 ppb (2) 13.0 μg/m3 (12) N/A 25.0
 
March 17, 2019, 9 a.m. 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) 0.14 ppb (2) 11.0 μg/m3 (10) N/A 33.0
 
March 17, 2019, 8 a.m. 6.4 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) 0.16 ppb (2) 8.0 μg/m3 (7) N/A 31.0
 
March 17, 2019, 7 a.m. 9.7 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A N/A 33.0 ppb (25) 0.16 ppb (2) 9.0 μg/m3 (8) N/A 25.0
 
March 17, 2019, 6 a.m. 10.1 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.21 ppb (2) 15.0 μg/m3 (14) N/A 23.0
 
March 17, 2019, 5 a.m. 11.2 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) 0.2 ppb (2) 18.0 μg/m3 (16) N/A 22.0
 
March 17, 2019, 4 a.m. 5.9 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (31) 0.16 ppb (2) 21.0 μg/m3 (19) N/A 31.0
 
March 17, 2019, 3 a.m. 2.8 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) 0.15 ppb (2) 19.0 μg/m3 (17) N/A 37.0
 
March 17, 2019, 2 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.15 ppb (2) 15.0 μg/m3 (14) N/A 38.0
 
March 17, 2019, 1 a.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.14 ppb (2) 17.0 μg/m3 (15) N/A 38.0
 
March 17, 2019, midnight 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (41) 0.13 ppb (1) 15.0 μg/m3 (14) N/A 41.0
 
March 16, 2019, 11 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) 0.16 ppb (2) 13.0 μg/m3 (12) N/A 41.0
 
March 16, 2019, 10 p.m. 1.5 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) 0.14 ppb (2) 14.0 μg/m3 (13) N/A 41.0
 
March 16, 2019, 9 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) 0.14 ppb (2) 8.0 μg/m3 (7) N/A 41.0
 
March 16, 2019, 8 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) 0.14 ppb (2) 8.0 μg/m3 (7) N/A 40.0
 
March 16, 2019, 7 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.13 ppb (1) 8.0 μg/m3 (7) N/A 39.0
 
March 16, 2019, 6 p.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.14 ppb (2) 8.0 μg/m3 (7) N/A 38.0
 
March 16, 2019, 5 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.14 ppb (2) 8.0 μg/m3 (7) N/A 38.0
 
March 16, 2019, 4 p.m. 1.8 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.15 ppb (2) 9.0 μg/m3 (8) N/A 37.0
 
March 16, 2019, 3 p.m. 4.9 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) 0.15 ppb (2) 8.0 μg/m3 (7) N/A 36.0
 
March 16, 2019, 2 p.m. 7.0 ppb (6) 4.2 ppb (4) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) 0.15 ppb (2) 7.0 μg/m3 (6) N/A 36.0
 
March 16, 2019, 1 p.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.15 ppb (2) 6.0 μg/m3 (5) N/A 36.0
 
March 16, 2019, noon 3.9 ppb (4) 1.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) 0.15 ppb (2) 4.0 μg/m3 (4) N/A 37.0
 
March 16, 2019, 11 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.15 ppb (2) 6.0 μg/m3 (5) N/A 36.0
 
March 16, 2019, 10 a.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.15 ppb (2) 6.0 μg/m3 (5) N/A 35.0
 
March 16, 2019, 9 a.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.15 ppb (2) 5.0 μg/m3 (5) N/A 36.0
 
March 16, 2019, 8 a.m. 3.3 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) 0.17 ppb (2) 6.0 μg/m3 (5) N/A 35.0
 
March 16, 2019, 7 a.m. 2.9 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) 0.15 ppb (2) 7.0 μg/m3 (6) N/A 36.0
 
March 16, 2019, 6 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) 0.16 ppb (2) 4.0 μg/m3 (4) N/A 37.0
 
March 16, 2019, 5 a.m. 7.6 ppb (7) 4.2 ppb (4) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) 0.14 ppb (2) 6.0 μg/m3 (5) N/A 36.0
 
March 16, 2019, 4 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) 0.15 ppb (2) 7.0 μg/m3 (6) N/A 37.0
 
March 16, 2019, 3 a.m. 9.0 ppb (8) 5.2 ppb (5) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) 0.14 ppb (2) 5.0 μg/m3 (5) N/A 36.0
 
March 16, 2019, 2 a.m. 5.8 ppb (5) 2.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) 0.15 ppb (2) 9.0 μg/m3 (8) N/A 36.0
 
March 16, 2019, 1 a.m. 13.5 ppb (12) 8.1 ppb (8) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (36) 0.16 ppb (2) 8.0 μg/m3 (7) N/A 36.0
 
March 16, 2019, midnight 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.13 ppb (1) 5.0 μg/m3 (5) N/A 39.0
 
March 15, 2019, 11 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.13 ppb (1) 4.0 μg/m3 (4) N/A 39.0
 
March 15, 2019, 10 p.m. 5.4 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) 0.14 ppb (2) 5.0 μg/m3 (5) N/A 37.0
 
March 15, 2019, 9 p.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.13 ppb (1) 5.0 μg/m3 (5) N/A 38.0
 
March 15, 2019, 8 p.m. 2.3 ppb (2) 1.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.14 ppb (2) 7.0 μg/m3 (6) N/A 37.0
 
March 15, 2019, 7 p.m. 2.2 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.14 ppb (2) 4.0 μg/m3 (4) N/A 36.0
 
March 15, 2019, 6 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.14 ppb (2) 3.0 μg/m3 (3) N/A 36.0
 
March 15, 2019, 5 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.14 ppb (2) 5.0 μg/m3 (5) N/A 35.0
 
March 15, 2019, 4 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.14 ppb (2) 6.0 μg/m3 (5) N/A 34.0
 
March 15, 2019, 3 p.m. 4.7 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) 0.15 ppb (2) 7.0 μg/m3 (6) N/A 33.0
 
March 15, 2019, 2 p.m. 3.7 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.17 ppb (2) 4.0 μg/m3 (4) N/A 32.0
 
March 15, 2019, 1 p.m. 4.4 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.16 ppb (2) 5.0 μg/m3 (5) N/A 31.0
 
March 15, 2019, noon 4.9 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.16 ppb (2) 5.0 μg/m3 (5) N/A 32.0
 
March 15, 2019, 11 a.m. 2.6 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.15 ppb (2) 3.0 μg/m3 (3) N/A 32.0
 
March 15, 2019, 10 a.m. 3.1 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) 0.16 ppb (2) 4.0 μg/m3 (4) N/A 32.0
 
March 15, 2019, 9 a.m. 10.3 ppb (10) 7.4 ppb (7) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.15 ppb (2) 3.0 μg/m3 (3) N/A 32.0
 
March 15, 2019, 8 a.m. 4.0 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.17 ppb (2) 4.0 μg/m3 (4) N/A 29.0
 
March 15, 2019, 7 a.m. 9.1 ppb (8) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 34.0 ppb (26) 0.18 ppb (2) 8.0 μg/m3 (7) N/A 26.0
 
March 15, 2019, 6 a.m. 3.0 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.17 ppb (2) 1.0 μg/m3 (1) N/A 32.0
 
March 15, 2019, 5 a.m. 12.3 ppb (11) 2.5 ppb (2) N/A 10.0 ppb (9) N/A N/A 36.0 ppb (28) 0.18 ppb (2) 10.0 μg/m3 (9) N/A 28.0
 
March 15, 2019, 4 a.m. 9.9 ppb (9) 6.2 ppb (6) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.16 ppb (2) 4.0 μg/m3 (4) N/A 34.0
 
March 15, 2019, 3 a.m. 3.4 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.19 ppb (2) 6.0 μg/m3 (5) N/A 34.0
 
March 15, 2019, 2 a.m. 7.6 ppb (7) 3.6 ppb (3) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) 0.2 ppb (2) 8.0 μg/m3 (7) N/A 33.0
 
March 15, 2019, 1 a.m. 3.1 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.19 ppb (2) 8.0 μg/m3 (7) N/A 36.0
 
March 15, 2019, midnight 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.17 ppb (2) 5.0 μg/m3 (5) N/A 38.0
 
March 14, 2019, 11 p.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.17 ppb (2) 7.0 μg/m3 (6) N/A 39.0
 
March 14, 2019, 10 p.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.18 ppb (2) 5.0 μg/m3 (5) N/A 38.0
 
March 14, 2019, 9 p.m. 1.4 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.18 ppb (2) 8.0 μg/m3 (7) N/A 38.0
 
March 14, 2019, 8 p.m. 3.2 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.19 ppb (2) 5.0 μg/m3 (5) N/A 38.0
 
March 14, 2019, 7 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.18 ppb (2) 6.0 μg/m3 (5) N/A 37.0
 
March 14, 2019, 6 p.m. 1.9 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.18 ppb (2) 6.0 μg/m3 (5) N/A 36.0
 
March 14, 2019, 5 p.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.19 ppb (2) 8.0 μg/m3 (7) N/A 37.0
 
March 14, 2019, 4 p.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.18 ppb (2) 3.0 μg/m3 (3) N/A 36.0
 
March 14, 2019, 3 p.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) 0.21 ppb (2) 5.0 μg/m3 (5) N/A 35.0
 
March 14, 2019, 2 p.m. 12.4 ppb (11) 3.2 ppb (3) N/A 9.0 ppb (8) N/A N/A 40.0 ppb (31) 0.22 ppb (2) 8.0 μg/m3 (7) N/A 31.0
 
March 14, 2019, 1 p.m. 4.1 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) 0.2 ppb (2) 7.0 μg/m3 (6) N/A 33.0
 
March 14, 2019, noon 3.8 ppb (4) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.18 ppb (2) 5.0 μg/m3 (5) N/A 34.0
 
March 14, 2019, 11 a.m. 9.1 ppb (8) 5.1 ppb (5) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) 0.18 ppb (2) 6.0 μg/m3 (5) N/A 35.0
 
March 14, 2019, 10 a.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.17 ppb (2) 7.0 μg/m3 (6) N/A 35.0
 
March 14, 2019, 9 a.m. 9.2 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) 0.19 ppb (2) 16.0 μg/m3 (15) N/A 28.0
 
March 14, 2019, 8 a.m. 6.6 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (28) 0.2 ppb (2) 28.0 μg/m3 (25) N/A 28.0
 
March 14, 2019, 7 a.m. 11.1 ppb (10) 5.1 ppb (5) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (28) 0.19 ppb (2) 14.0 μg/m3 (13) N/A 28.0
 
March 14, 2019, 6 a.m. 8.1 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A 34.0 ppb (26) 0.19 ppb (2) 13.0 μg/m3 (12) N/A 26.0
 
March 14, 2019, 5 a.m. 14.8 ppb (14) 5.8 ppb (5) N/A 9.0 ppb (8) N/A N/A 35.0 ppb (27) 0.18 ppb (2) 16.0 μg/m3 (15) N/A 27.0
 
March 14, 2019, 4 a.m. 5.2 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (32) 0.18 ppb (2) 9.0 μg/m3 (8) N/A 32.0
 
March 14, 2019, 3 a.m. 7.6 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 41.0 ppb (32) 0.16 ppb (2) 5.0 μg/m3 (5) N/A 32.0
 
March 14, 2019, 2 a.m. 5.8 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) 0.19 ppb (2) 12.0 μg/m3 (11) N/A 30.0
 
March 14, 2019, 1 a.m. 7.5 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) 0.18 ppb (2) 16.0 μg/m3 (15) N/A 34.0
 
March 14, 2019, midnight 2.9 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) 0.17 ppb (2) 11.0 μg/m3 (10) N/A 40.0
 
March 13, 2019, 11 p.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (42) 0.18 ppb (2) 9.0 μg/m3 (8) N/A 42.0
 
March 13, 2019, 10 p.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (42) 0.16 ppb (2) 14.0 μg/m3 (13) N/A 42.0
 
March 13, 2019, 9 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) 0.15 ppb (2) 10.0 μg/m3 (9) N/A 41.0
 
March 13, 2019, 8 p.m. 2.0 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) 0.15 ppb (2) 9.0 μg/m3 (8) N/A 40.0
 
March 13, 2019, 7 p.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.15 ppb (2) 11.0 μg/m3 (10) N/A 38.0
 
March 13, 2019, 6 p.m. 2.5 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.14 ppb (2) 15.0 μg/m3 (14) N/A 36.0
 
March 13, 2019, 5 p.m. 2.4 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.15 ppb (2) 17.0 μg/m3 (15) N/A 35.0
 
March 13, 2019, 4 p.m. 4.4 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) 0.14 ppb (2) 18.0 μg/m3 (16) N/A 35.0
 
March 13, 2019, 3 p.m. 3.1 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.31 ppb (3) 14.0 μg/m3 (13) N/A 35.0
 
March 13, 2019, 2 p.m. 9.8 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 37.0 ppb (28) 0.24 ppb (3) 19.0 μg/m3 (17) N/A 28.0
 
March 13, 2019, 1 p.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.13 ppb (1) 14.0 μg/m3 (13) N/A 34.0
 
March 13, 2019, noon 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.15 ppb (2) 18.0 μg/m3 (16) N/A 33.0
 
March 13, 2019, 11 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.15 ppb (2) 20.0 μg/m3 (18) N/A 33.0
 
March 13, 2019, 10 a.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.15 ppb (2) 16.0 μg/m3 (15) N/A 31.0
 
March 13, 2019, 9 a.m. 5.1 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) 0.15 ppb (2) 26.0 μg/m3 (24) N/A 32.0
 
March 13, 2019, 8 a.m. 4.4 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.17 ppb (2) 38.0 μg/m3 (35) N/A 35.0
 
March 13, 2019, 7 a.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.15 ppb (2) 50.0 μg/m3 (45) N/A 45.0
 
March 13, 2019, 5 a.m. 10.9 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 37.0 ppb (28) 0.18 ppb (2) 7.0 μg/m3 (6) N/A 28.0
 
March 13, 2019, 4 a.m. 8.3 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A 40.0 ppb (31) 0.16 ppb (2) 10.0 μg/m3 (9) N/A 31.0
 
March 13, 2019, 3 a.m. 9.2 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (6) N/A N/A 43.0 ppb (33) 0.16 ppb (2) 8.0 μg/m3 (7) N/A 33.0
 
March 13, 2019, 2 a.m. 4.4 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) 0.15 ppb (2) 13.0 μg/m3 (12) N/A 36.0
 
March 13, 2019, 1 a.m. 4.5 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) 0.16 ppb (2) 6.0 μg/m3 (5) N/A 35.0
 
March 13, 2019, midnight 5.9 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) 0.16 ppb (2) 6.0 μg/m3 (5) N/A 35.0
 
March 12, 2019, 11 p.m. 3.4 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) 0.17 ppb (2) 4.0 μg/m3 (4) N/A 33.0
 
March 12, 2019, 10 p.m. 3.6 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) 0.14 ppb (2) 3.0 μg/m3 (3) N/A 37.0
 
March 12, 2019, 9 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.13 ppb (1) 2.0 μg/m3 (2) N/A 35.0
 
March 12, 2019, 8 p.m. 5.5 ppb (5) 2.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) 0.13 ppb (1) 4.0 μg/m3 (4) N/A 35.0
 
March 12, 2019, 7 p.m. 4.0 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) 0.13 ppb (1) 3.0 μg/m3 (3) N/A 35.0
 
March 12, 2019, 6 p.m. 2.2 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.12 ppb (1) 2.0 μg/m3 (2) N/A 34.0
 
March 12, 2019, 5 p.m. 6.2 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.15 ppb (2) 2.0 μg/m3 (2) N/A 28.0
 
March 12, 2019, 4 p.m. 9.4 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) 0.14 ppb (2) 5.0 μg/m3 (5) N/A 24.0
 
March 12, 2019, 3 p.m. 14.1 ppb (13) 4.8 ppb (4) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.17 ppb (2) 5.0 μg/m3 (5) N/A 20.0
 
March 12, 2019, 2 p.m. 22.3 ppb (21) 4.0 ppb (4) N/A 18.0 ppb (17) N/A N/A 16.0 ppb (12) 0.24 ppb (3) 5.0 μg/m3 (5) N/A 21.0
 
March 12, 2019, 1 p.m. 12.9 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 22.0 ppb (17) 0.19 ppb (2) 5.0 μg/m3 (5) N/A 17.0
 
March 12, 2019, noon 5.7 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) 0.14 ppb (2) 4.0 μg/m3 (4) N/A 25.0
 
March 12, 2019, 11 a.m. 4.5 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.12 ppb (1) 4.0 μg/m3 (4) N/A 26.0
 
March 12, 2019, 10 a.m. 3.9 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.13 ppb (1) 4.0 μg/m3 (4) N/A 26.0
 
March 12, 2019, 9 a.m. 5.7 ppb (5) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) 0.12 ppb (1) 4.0 μg/m3 (4) N/A 25.0
 
March 12, 2019, 8 a.m. 5.4 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) 0.14 ppb (2) 5.0 μg/m3 (5) N/A 25.0
 
March 12, 2019, 7 a.m. 5.6 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 7.0 μg/m3 (6) N/A 22.0
 
March 12, 2019, 6 a.m. 3.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.12 ppb (1) 7.0 μg/m3 (6) N/A 25.0