Air Quality
Excellent
No health implications.
18
PM2.5
38
PM10
76
O3
0.5
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Jul
64
Good
Sat
19 Jul
63
Good
Sun
20 Jul
58
Good
Mon
21 Jul
57
Good
Tue
22 Jul
56
Good
Wed
23 Jul
58
Good
Thu
24 Jul
21
Excellent
Air quality in the last 12 months (Jiuzhaigou)
|
2025/06
|
40
|
40
|
43
|
40
|
41
|
47
|
42
|
43
|
34
|
36
|
39
|
42
|
39
|
46
|
47
|
46
|
49
|
32
|
30
|
41
|
39
|
27
|
29
|
25
|
30
|
34
|
31
|
39
|
37
|
26
|
|
|
2025/05
|
50
|
59
|
79
|
76
|
36
|
56
|
50
|
48
|
76
|
61
|
52
|
59
|
47
|
54
|
41
|
56
|
59
|
56
|
62
|
50
|
51
|
63
|
67
|
51
|
42
|
51
|
32
|
31
|
35
|
45
|
54
|
|
2025/04
|
65
|
79
|
74
|
73
|
79
|
56
|
47
|
65
|
67
|
61
|
50
|
328
|
186
|
75
|
70
|
74
|
60
|
114
|
103
|
65
|
68
|
79
|
52
|
48
|
50
|
35
|
41
|
52
|
43
|
52
|
|
|
2025/03
|
50
|
60
|
54
|
44
|
42
|
47
|
61
|
60
|
39
|
41
|
82
|
102
|
81
|
36
|
48
|
45
|
51
|
49
|
50
|
54
|
51
|
50
|
54
|
47
|
45
|
109
|
145
|
74
|
82
|
69
|
62
|
|
2025/02
|
37
|
44
|
45
|
40
|
43
|
43
|
43
|
44
|
42
|
39
|
54
|
68
|
57
|
56
|
54
|
50
|
40
|
36
|
43
|
39
|
37
|
28
|
39
|
31
|
38
|
41
|
46
|
45
|
|||
|
2025/01
|
80
|
75
|
66
|
73
|
68
|
61
|
54
|
59
|
58
|
52
|
50
|
55
|
54
|
62
|
54
|
45
|
53
|
57
|
72
|
78
|
71
|
75
|
71
|
53
|
60
|
63
|
57
|
80
|
121
|
58
|
49
|
|
2024/12
|
70
|
73
|
72
|
54
|
49
|
49
|
48
|
27
|
24
|
39
|
50
|
45
|
45
|
53
|
63
|
65
|
70
|
58
|
48
|
49
|
54
|
44
|
48
|
56
|
58
|
57
|
65
|
67
|
63
|
61
|
65
|
|
2024/11
|
36
|
36
|
44
|
40
|
39
|
36
|
33
|
35
|
34
|
30
|
40
|
40
|
43
|
36
|
34
|
35
|
37
|
24
|
30
|
43
|
40
|
42
|
30
|
27
|
34
|
45
|
54
|
55
|
60
|
65
|
|
|
2024/10
|
28
|
33
|
34
|
28
|
36
|
42
|
41
|
37
|
36
|
33
|
31
|
26
|
28
|
31
|
31
|
35
|
27
|
40
|
27
|
25
|
37
|
42
|
44
|
38
|
40
|
27
|
41
|
41
|
44
|
34
|
36
|
|
2024/09
|
37
|
37
|
38
|
33
|
22
|
30
|
32
|
36
|
32
|
23
|
26
|
27
|
27
|
33
|
34
|
30
|
33
|
33
|
31
|
30
|
26
|
35
|
41
|
41
|
41
|
40
|
51
|
44
|
26
|
25
|
|
|
2024/08
|
34
|
41
|
27
|
24
|
31
|
32
|
32
|
29
|
51
|
56
|
46
|
38
|
37
|
43
|
27
|
31
|
37
|
32
|
41
|
38
|
40
|
45
|
44
|
39
|
40
|
36
|
37
|
34
|
30
|
31
|
38
|
|
2024/07
|
24
|
29
|
25
|
24
|
29
|
47
|
25
|
22
|
26
|
32
|
32
|
34
|
27
|
25
|
21
|
22
|
24
|
24
|
23
|
18
|
42
|
25
|
23
|
42
|
57
|
58
|
47
|
38
|
29
|
30
|
32
|
|
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
Air quality source: CNEMC
*: primary pollution