ID: 2164

AQSQID: 460290002

Site Name: Watertown

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

Updated: May 24, 2022, 8:10 a.m.

Location: Watertown (3rd Ave Swest), SD

Reporting: True, Located: True

Current AQI: 24.0

Watertown (3rd Ave Swest) SD, US: 44.89965, -97.128802

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 24, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 16.0 μg/m3 (15) 5.6 μg/m3 (24) 24.0
 
May 24, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 15.0 μg/m3 (14) 6.1 μg/m3 (26) 26.0
 
May 24, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 15.0 μg/m3 (14) 6.1 μg/m3 (26) 26.0
 
May 24, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 16.0 μg/m3 (15) 5.1 μg/m3 (22) 25.0
 
May 24, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 16.0 μg/m3 (15) 5.1 μg/m3 (22) 25.0
 
May 24, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 21.0 μg/m3 (20) 5.8 μg/m3 (25) 29.0
 
May 24, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 21.0 μg/m3 (20) 5.8 μg/m3 (25) 29.0
 
May 24, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 26.0 μg/m3 (25) 10.7 μg/m3 (45) 45.0
 
May 24, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 26.0 μg/m3 (25) 10.7 μg/m3 (45) 45.0
 
May 24, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 18.0 μg/m3 (17) 9.5 μg/m3 (40) 40.0
 
May 24, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 18.0 μg/m3 (17) 9.5 μg/m3 (40) 40.0
 
May 24, 2022, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 16.0 μg/m3 (15) 8.1 μg/m3 (34) 40.0
 
May 24, 2022, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 16.0 μg/m3 (15) 8.1 μg/m3 (34) 40.0
 
May 23, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 8.0 μg/m3 (8) 4.6 μg/m3 (20) 42.0
 
May 23, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 8.0 μg/m3 (8) 4.6 μg/m3 (20) 42.0
 
May 23, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 39.0 μg/m3 (37) 4.9 μg/m3 (21) 46.0
 
May 23, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 35.0 μg/m3 (33) 3.2 μg/m3 (14) 45.0
 
May 23, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 59.0 μg/m3 (53) 6.6 μg/m3 (28) 53.0
 
May 23, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 44.0 μg/m3 (41) 11.0 μg/m3 (46) 46.0
 
May 23, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 48.0 μg/m3 (45) 7.6 μg/m3 (32) 45.0
 
May 23, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 18.0 μg/m3 (17) 7.3 μg/m3 (31) 31.0
 
May 23, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 10.0 μg/m3 (10) 5.1 μg/m3 (22) 28.0
 
May 23, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 10.0 μg/m3 (10) 5.1 μg/m3 (22) 28.0
 
May 23, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 10.0 μg/m3 (10) 5.4 μg/m3 (23) 29.0
 
May 23, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 20.0 μg/m3 (19) 3.9 μg/m3 (17) 23.0
 
May 23, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 19.0 μg/m3 (18) 3.4 μg/m3 (15) 31.0
 
May 23, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 21.0 μg/m3 (20) 5.1 μg/m3 (22) 41.0
 
May 23, 2022, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 5.0 μg/m3 (5) 4.6 μg/m3 (20) 43.0
 
May 22, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 6.0 μg/m3 (6) 3.7 μg/m3 (16) 43.0
 
May 22, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 6.0 μg/m3 (6) 5.1 μg/m3 (22) 41.0
 
May 22, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 4.4 μg/m3 (19) 19.0
 
May 22, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 4.0 μg/m3 (4) 2.7 μg/m3 (12) 41.0
 
May 22, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 4.0 μg/m3 (4) 0.6 μg/m3 (3) 40.0
 
May 22, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (6) 40.0
 
May 22, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 4.0 μg/m3 (4) 3.9 μg/m3 (17) 39.0
 
May 22, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 3.0 μg/m3 (3) 5.9 μg/m3 (25) 39.0
 
May 22, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 3.0 μg/m3 (3) 6.1 μg/m3 (26) 38.0
 
May 22, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 2.0 μg/m3 (2) 3.9 μg/m3 (17) 35.0
 
May 22, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 2.0 μg/m3 (2) 3.9 μg/m3 (17) 35.0
 
May 22, 2022, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 0.0 μg/m3 (0) 3.4 μg/m3 (15) 26.0
 
May 22, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 1.0 μg/m3 (1) 4.6 μg/m3 (20) 22.0
 
May 22, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 2.0 μg/m3 (2) 1.5 μg/m3 (7) 23.0
 
May 22, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 4.0 μg/m3 (4) 2.4 μg/m3 (10) 25.0
 
May 22, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 4.0 μg/m3 (4) 1.8 μg/m3 (8) 25.0
 
May 22, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (10) 25.0
 
May 22, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 3.0 μg/m3 (3) 4.6 μg/m3 (20) 26.0
 
May 22, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) 5.8 μg/m3 (25) 30.0
 
May 22, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 5.0 μg/m3 (5) 2.9 μg/m3 (13) 27.0
 
May 22, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 5.0 μg/m3 (5) 0.8 μg/m3 (4) 31.0
 
May 22, 2022, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 1.0 μg/m3 (1) 2.9 μg/m3 (13) 33.0
 
May 21, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 3.0 μg/m3 (3) 3.2 μg/m3 (14) 33.0
 
May 21, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 2.0 μg/m3 (2) 2.5 μg/m3 (11) 33.0
 
May 21, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 2.0 μg/m3 (2) 2.7 μg/m3 (12) 33.0
 
May 21, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 4.0 μg/m3 (4) 3.4 μg/m3 (15) 33.0
 
May 21, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 2.0 μg/m3 (2) 0.0 μg/m3 (0) 35.0
 
May 21, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 5.0 μg/m3 (5) -0.8 μg/m3 (0) 36.0
 
May 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (14) 35.0
 
May 21, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 4.0 μg/m3 (4) 4.6 μg/m3 (20) 33.0
 
May 21, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 3.0 μg/m3 (3) 1.1 μg/m3 (5) 33.0
 
May 21, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) 1.3 μg/m3 (6) 32.0
 
May 21, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 7.0 μg/m3 (7) 3.0 μg/m3 (13) 28.0
 
May 21, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 7.0 μg/m3 (7) 3.0 μg/m3 (13) 28.0
 
May 21, 2022, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 6.0 μg/m3 (6) 3.4 μg/m3 (15) 29.0
 
May 21, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 3.0 μg/m3 (3) 3.4 μg/m3 (15) 31.0
 
May 21, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 3.0 μg/m3 (3) 1.8 μg/m3 (8) 32.0
 
May 21, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (10) 31.0
 
May 21, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 3.0 μg/m3 (3) 4.9 μg/m3 (21) 32.0
 
May 21, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) 3.7 μg/m3 (16) 32.0
 
May 21, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 6.0 μg/m3 (6) 4.2 μg/m3 (18) 30.0
 
May 21, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 7.0 μg/m3 (7) 2.0 μg/m3 (9) 31.0
 
May 21, 2022, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 6.0 μg/m3 (6) 3.9 μg/m3 (17) 31.0
 
May 20, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 7.0 μg/m3 (7) 3.2 μg/m3 (14) 30.0
 
May 20, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.0 μg/m3 (11) 0.8 μg/m3 (4) 30.0
 
May 20, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 7.0 μg/m3 (7) 4.9 μg/m3 (21) 32.0
 
May 20, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 11.0 μg/m3 (11) 3.7 μg/m3 (16) 29.0
 
May 20, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 15.0 μg/m3 (14) 4.4 μg/m3 (19) 29.0
 
May 20, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 13.0 μg/m3 (13) 4.9 μg/m3 (21) 29.0
 
May 20, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 12.0 μg/m3 (12) 5.1 μg/m3 (22) 28.0
 
May 20, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 11.0 μg/m3 (11) 4.4 μg/m3 (19) 28.0
 
May 20, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 9.0 μg/m3 (9) 3.9 μg/m3 (17) 28.0
 
May 20, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 16.0 μg/m3 (15) 3.9 μg/m3 (17) 28.0
 
May 20, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.0 μg/m3 (10) 6.6 μg/m3 (28) 30.0
 
May 20, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 9.0 μg/m3 (9) 2.2 μg/m3 (10) 32.0
 
May 20, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 9.0 μg/m3 (9) 1.1 μg/m3 (5) 34.0
 
May 20, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 8.0 μg/m3 (8) 1.5 μg/m3 (7) 39.0
 
May 20, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 3.0 μg/m3 (3) 2.5 μg/m3 (11) 42.0
 
May 20, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 5.0 μg/m3 (5) 0.4 μg/m3 (2) 46.0
 
May 20, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 7.0 μg/m3 (7) 1.3 μg/m3 (6) 49.0
 
May 20, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 5.0 μg/m3 (5) 3.9 μg/m3 (17) 55.0
 
May 20, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 7.0 μg/m3 (7) 5.1 μg/m3 (22) 55.0
 
May 20, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 7.0 μg/m3 (7) 2.2 μg/m3 (10) 50.0
 
May 20, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 8.0 μg/m3 (8) 6.4 μg/m3 (27) 48.0
 
May 20, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 8.0 μg/m3 (8) 6.4 μg/m3 (27) 48.0
 
May 20, 2022, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 12.2 μg/m3 (52) 52.0
 
May 20, 2022, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 123.0 μg/m3 (85) 12.2 μg/m3 (52) 85.0
 
May 19, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 27.0 μg/m3 (25) 5.4 μg/m3 (23) 47.0
 
May 19, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 27.0 μg/m3 (25) 4.9 μg/m3 (21) 47.0
 
May 19, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 30.0 μg/m3 (28) 5.6 μg/m3 (24) 47.0
 
May 19, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 33.0 μg/m3 (31) 8.3 μg/m3 (35) 46.0
 
May 19, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 65.0 μg/m3 (56) 8.8 μg/m3 (37) 56.0
 
May 19, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 65.0 μg/m3 (56) 8.8 μg/m3 (37) 56.0
 
May 19, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 34.0 μg/m3 (32) 5.9 μg/m3 (25) 34.0
 
May 19, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 35.0 μg/m3 (33) 3.2 μg/m3 (14) 33.0
 
May 19, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 31.0 μg/m3 (29) 7.3 μg/m3 (31) 31.0
 
May 19, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 31.0 μg/m3 (29) 4.9 μg/m3 (21) 29.0
 
May 19, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 31.0 μg/m3 (29) 5.4 μg/m3 (23) 29.0
 
May 19, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 34.0 μg/m3 (32) 9.2 μg/m3 (39) 39.0
 
May 19, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 26.0 μg/m3 (25) 6.1 μg/m3 (26) 36.0
 
May 19, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 31.0 μg/m3 (29) 6.6 μg/m3 (28) 42.0
 
May 18, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 30.0 μg/m3 (28) 3.2 μg/m3 (14) 46.0
 
May 18, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 36.0 μg/m3 (34) 4.9 μg/m3 (21) 45.0
 
May 18, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 34.0 μg/m3 (32) 5.7 μg/m3 (24) 43.0
 
May 18, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 34.0 μg/m3 (32) 5.7 μg/m3 (24) 43.0
 
May 18, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 27.0 μg/m3 (25) 6.2 μg/m3 (26) 41.0
 
May 18, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 29.0 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
May 18, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 29.0 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
May 18, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 33.0 μg/m3 (31) 9.8 μg/m3 (41) 41.0
 
May 18, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 33.0 μg/m3 (31) 9.8 μg/m3 (41) 41.0
 
May 18, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 27.0 μg/m3 (25) 12.4 μg/m3 (52) 52.0
 
May 18, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 27.0 μg/m3 (25) 12.4 μg/m3 (52) 52.0
 
May 18, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 15.0 μg/m3 (14) 5.4 μg/m3 (23) 29.0
 
May 18, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 15.0 μg/m3 (14) 5.4 μg/m3 (23) 29.0
 
May 18, 2022, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 7.0 μg/m3 (7) 4.2 μg/m3 (18) 30.0
 
May 18, 2022, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 7.0 μg/m3 (7) 4.2 μg/m3 (18) 30.0
 
May 18, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 7.0 μg/m3 (7) 4.6 μg/m3 (20) 41.0
 
May 18, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 5.0 μg/m3 (5) 4.9 μg/m3 (21) 38.0
 
May 18, 2022, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 7.0 μg/m3 (7) 4.4 μg/m3 (19) 38.0
 
May 17, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 7.0 μg/m3 (7) 4.4 μg/m3 (19) 39.0
 
May 17, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 5.0 μg/m3 (5) 4.2 μg/m3 (18) 39.0
 
May 17, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 8.0 μg/m3 (8) 5.4 μg/m3 (23) 37.0
 
May 17, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 16.0 μg/m3 (15) 4.7 μg/m3 (20) 38.0
 
May 17, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 17.0 μg/m3 (16) 4.6 μg/m3 (20) 40.0
 
May 17, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 13.0 μg/m3 (13) 7.1 μg/m3 (30) 41.0
 
May 17, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 13.0 μg/m3 (13) 7.1 μg/m3 (30) 41.0
 
May 17, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 16.0 μg/m3 (15) 9.8 μg/m3 (41) 43.0
 
May 17, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 16.0 μg/m3 (15) 9.8 μg/m3 (41) 43.0
 
May 17, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 11.0 μg/m3 (11) 6.1 μg/m3 (26) 45.0
 
May 17, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 11.0 μg/m3 (11) 6.1 μg/m3 (26) 45.0
 
May 17, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 10.0 μg/m3 (10) 7.3 μg/m3 (31) 41.0
 
May 17, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 10.0 μg/m3 (10) 7.3 μg/m3 (31) 41.0
 
May 17, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 8.0 μg/m3 (8) 7.3 μg/m3 (31) 35.0
 
May 17, 2022, noon N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 8.0 μg/m3 (8) 7.3 μg/m3 (31) 32.0
 
May 17, 2022, noon N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 8.0 μg/m3 (8) 7.3 μg/m3 (31) 32.0
 
May 17, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 6.0 μg/m3 (6) 2.7 μg/m3 (12) 34.0
 
May 17, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 6.0 μg/m3 (6) 2.7 μg/m3 (12) 34.0
 
May 17, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 10.0 μg/m3 (10) 3.4 μg/m3 (15) 35.0
 
May 17, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 12.0 μg/m3 (12) 4.6 μg/m3 (20) 34.0
 
May 17, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 25.0 μg/m3 (24) 6.3 μg/m3 (27) 36.0
 
May 17, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 22.0 μg/m3 (21) 12.2 μg/m3 (52) 52.0
 
May 17, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 28.0 μg/m3 (26) 2.0 μg/m3 (9) 39.0
 
May 17, 2022, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 29.0 μg/m3 (27) 1.8 μg/m3 (8) 43.0
 
May 16, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 25.0 μg/m3 (24) 2.3 μg/m3 (10) 45.0
 
May 16, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 17.0 μg/m3 (16) 5.4 μg/m3 (23) 50.0
 
May 16, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 21.0 μg/m3 (20) 8.3 μg/m3 (35) 50.0
 
May 16, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 18.0 μg/m3 (17) 8.1 μg/m3 (34) 50.0
 
May 16, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 31.0 μg/m3 (29) 6.6 μg/m3 (28) 49.0
 
May 16, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 15.0 μg/m3 (14) 5.4 μg/m3 (23) 49.0
 
May 16, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 16.0 μg/m3 (15) 3.4 μg/m3 (15) 47.0
 
May 16, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 22.0 μg/m3 (21) 4.7 μg/m3 (20) 44.0
 
May 16, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 22.0 μg/m3 (21) 6.6 μg/m3 (28) 42.0
 
May 16, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 26.0 μg/m3 (25) 7.8 μg/m3 (33) 35.0
 
May 16, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 27.0 μg/m3 (25) 5.4 μg/m3 (23) 32.0
 
May 16, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 24.0 μg/m3 (23) 2.2 μg/m3 (10) 38.0
 
May 16, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 20.0 μg/m3 (19) 5.1 μg/m3 (22) 38.0
 
May 16, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 20.0 μg/m3 (19) 3.7 μg/m3 (16) 40.0
 
May 16, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 20.0 μg/m3 (19) 3.7 μg/m3 (16) 40.0
 
May 16, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 12.0 μg/m3 (12) 3.4 μg/m3 (15) 44.0
 
May 16, 2022, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 14.0 μg/m3 (13) -0.8 μg/m3 (0) 46.0