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
23 Apr
Thu
24 Apr
Fri
25 Apr
Sat
26 Apr
Sun
27 Apr
Mon
28 Apr
Tue
29 Apr
Real-time AQI (Monitoring Station in Hechi)
市环保站
183
PM2.5
6
PM10
57
O3
0.5
CO
6
SO2
4
NO2
市疾控中心
153
PM2.5
8
PM10
48
O3
0.5
CO
7
SO2
13
NO2
Air quality in the last 12 months (Hechi)
|
2025/02
|
17
|
9
|
20
|
49
|
68
|
23
|
14
|
46
|
59
|
62
|
128
|
102
|
36
|
55
|
18
|
40
|
41
|
24
|
16
|
11
|
12
|
12
|
11
|
24
|
39
|
27
|
30
|
55
|
|||
|
2025/01
|
97
|
85
|
76
|
110
|
77
|
81
|
94
|
72
|
35
|
33
|
48
|
62
|
74
|
87
|
78
|
71
|
72
|
86
|
85
|
84
|
91
|
117
|
152
|
120
|
33
|
13
|
35
|
42
|
120
|
77
|
50
|
|
2024/12
|
70
|
79
|
90
|
90
|
45
|
15
|
8
|
29
|
53
|
46
|
35
|
34
|
43
|
50
|
41
|
56
|
79
|
73
|
68
|
77
|
81
|
91
|
84
|
90
|
88
|
84
|
78
|
56
|
84
|
124
|
113
|
|
2024/11
|
46
|
42
|
54
|
64
|
58
|
55
|
60
|
55
|
53
|
55
|
62
|
66
|
68
|
69
|
62
|
61
|
58
|
24
|
15
|
18
|
18
|
20
|
32
|
49
|
55
|
21
|
30
|
35
|
41
|
55
|
|
|
2024/10
|
12
|
23
|
40
|
46
|
48
|
50
|
52
|
46
|
36
|
43
|
44
|
53
|
74
|
24
|
22
|
31
|
35
|
29
|
26
|
21
|
35
|
28
|
27
|
34
|
33
|
34
|
25
|
34
|
40
|
47
|
51
|
|
2024/09
|
26
|
29
|
29
|
28
|
37
|
37
|
26
|
22
|
23
|
25
|
28
|
34
|
38
|
41
|
36
|
31
|
24
|
28
|
35
|
33
|
27
|
22
|
26
|
42
|
50
|
59
|
44
|
48
|
41
|
35
|
|
|
2024/08
|
17
|
20
|
22
|
26
|
30
|
32
|
33
|
32
|
34
|
29
|
20
|
25
|
20
|
24
|
32
|
34
|
19
|
25
|
35
|
27
|
27
|
22
|
20
|
23
|
30
|
26
|
26
|
35
|
30
|
26
|
36
|
|
2024/07
|
31
|
16
|
16
|
24
|
20
|
17
|
20
|
20
|
25
|
25
|
22
|
22
|
24
|
24
|
28
|
29
|
26
|
24
|
21
|
25
|
37
|
35
|
30
|
24
|
34
|
40
|
29
|
22
|
17
|
16
|
19
|
|
2024/06
|
37
|
41
|
28
|
17
|
26
|
27
|
36
|
35
|
13
|
12
|
20
|
32
|
34
|
14
|
29
|
23
|
24
|
15
|
26
|
29
|
28
|
27
|
27
|
21
|
12
|
12
|
23
|
21
|
21
|
20
|
|
|
2024/05
|
11
|
21
|
18
|
27
|
24
|
31
|
36
|
35
|
29
|
30
|
37
|
20
|
45
|
51
|
54
|
49
|
47
|
31
|
18
|
30
|
22
|
28
|
36
|
43
|
45
|
22
|
29
|
34
|
44
|
25
|
26
|
|
2024/04
|
73
|
71
|
65
|
27
|
17
|
17
|
16
|
20
|
39
|
32
|
33
|
58
|
51
|
56
|
60
|
50
|
44
|
23
|
44
|
27
|
22
|
50
|
29
|
40
|
57
|
32
|
41
|
51
|
71
|
41
|
|
|
2024/03
|
40
|
57
|
81
|
31
|
47
|
28
|
60
|
63
|
49
|
25
|
33
|
50
|
46
|
26
|
18
|
27
|
56
|
41
|
25
|
65
|
87
|
79
|
48
|
52
|
52
|
32
|
56
|
45
|
45
|
56
|
65
|
|
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