Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Sep
Thu
17 Sep
Fri
18 Sep
Sat
19 Sep
Sun
20 Sep
Mon
21 Sep
Tue
22 Sep
Real-time AQI (Monitoring Station in Hechi)
市环保站
3723
PM2.5
37
PM10
25
O3
0.8
CO
6
SO2
12
NO2
上任中路54号
4628
PM2.5
46
PM10
12
O3
0.8
CO
7
SO2
20
NO2
Air quality in the last 12 months (Hechi)
|
2026/08
|
18
|
27
|
28
|
20
|
16
|
20
|
23
|
24
|
31
|
30
|
28
|
26
|
19
|
18
|
19
|
21
|
23
|
23
|
20
|
24
|
26
|
29
|
27
|
20
|
18
|
15
|
17
|
15
|
20
|
23
|
29
|
|
2026/07
|
15
|
25
|
26
|
20
|
13
|
19
|
15
|
18
|
20
|
19
|
29
|
32
|
33
|
34
|
22
|
26
|
24
|
28
|
21
|
22
|
27
|
32
|
29
|
29
|
34
|
31
|
36
|
22
|
23
|
21
|
22
|
|
2026/06
|
35
|
32
|
39
|
28
|
28
|
29
|
27
|
21
|
30
|
23
|
29
|
40
|
38
|
21
|
28
|
33
|
33
|
19
|
13
|
16
|
21
|
24
|
22
|
20
|
15
|
15
|
22
|
21
|
30
|
23
|
|
|
2026/05
|
35
|
39
|
20
|
30
|
33
|
38
|
29
|
25
|
27
|
29
|
28
|
40
|
46
|
41
|
33
|
23
|
19
|
20
|
20
|
26
|
23
|
24
|
30
|
32
|
31
|
34
|
33
|
29
|
22
|
22
|
26
|
|
2026/04
|
24
|
57
|
62
|
34
|
59
|
98
|
42
|
59
|
65
|
67
|
71
|
71
|
70
|
54
|
48
|
48
|
22
|
28
|
43
|
48
|
37
|
20
|
16
|
23
|
34
|
46
|
43
|
24
|
25
|
25
|
|
|
2026/03
|
40
|
17
|
15
|
19
|
39
|
47
|
61
|
51
|
11
|
18
|
28
|
40
|
49
|
59
|
65
|
56
|
36
|
25
|
40
|
28
|
27
|
34
|
58
|
56
|
40
|
66
|
50
|
28
|
41
|
50
|
35
|
|
2026/02
|
29
|
46
|
59
|
104
|
159
|
99
|
30
|
15
|
20
|
15
|
26
|
29
|
17
|
34
|
52
|
38
|
19
|
26
|
17
|
42
|
84
|
108
|
98
|
45
|
36
|
55
|
35
|
41
|
|||
|
2026/01
|
13
|
16
|
34
|
28
|
18
|
27
|
41
|
47
|
58
|
78
|
64
|
85
|
92
|
101
|
106
|
114
|
103
|
80
|
70
|
29
|
11
|
24
|
39
|
55
|
53
|
29
|
28
|
38
|
70
|
28
|
15
|
|
2025/12
|
75
|
74
|
57
|
67
|
58
|
64
|
73
|
55
|
64
|
84
|
91
|
76
|
20
|
38
|
49
|
60
|
62
|
52
|
60
|
60
|
38
|
54
|
58
|
17
|
32
|
48
|
56
|
58
|
77
|
75
|
75
|
|
2025/11
|
19
|
22
|
7
|
10
|
16
|
30
|
39
|
18
|
9
|
9
|
9
|
22
|
36
|
36
|
38
|
39
|
43
|
16
|
19
|
28
|
31
|
38
|
43
|
52
|
42
|
46
|
48
|
53
|
53
|
63
|
|
|
2025/10
|
21
|
24
|
24
|
24
|
24
|
12
|
18
|
21
|
26
|
30
|
33
|
35
|
29
|
19
|
19
|
23
|
31
|
38
|
14
|
8
|
8
|
10
|
16
|
34
|
37
|
20
|
24
|
26
|
39
|
48
|
26
|
|
2025/09
|
22
|
24
|
18
|
23
|
21
|
22
|
29
|
26
|
16
|
16
|
17
|
15
|
21
|
23
|
23
|
20
|
19
|
21
|
25
|
34
|
19
|
19
|
16
|
11
|
8
|
13
|
22
|
27
|
24
|
33
|
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
*: primary pollution