Air Quality
Excellent
No health implications.
22
PM2.5
30
PM10
71
O3
0.4
CO
5
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Jul
88
Good
Sat
19 Jul
98
Good
Sun
20 Jul
85
Good
Mon
21 Jul
47
Excellent
Tue
22 Jul
51
Good
Wed
23 Jul
32
Excellent
Thu
24 Jul
29
Excellent
Tianchang Air quality rank
Air quality in the last 12 months (Tianchang)
|
2025/06
|
21
|
11
|
43
|
56
|
53
|
49
|
31
|
30
|
27
|
47
|
31
|
37
|
35
|
34
|
27
|
44
|
42
|
46
|
20
|
18
|
13
|
27
|
27
|
24
|
40
|
45
|
21
|
17
|
15
|
23
|
|
|
2025/05
|
56
|
61
|
46
|
44
|
38
|
69
|
74
|
47
|
17
|
32
|
40
|
48
|
50
|
64
|
80
|
25
|
59
|
69
|
71
|
52
|
35
|
51
|
51
|
52
|
52
|
53
|
48
|
54
|
55
|
54
|
66
|
|
2025/04
|
52
|
55
|
43
|
68
|
69
|
65
|
69
|
75
|
86
|
78
|
91
|
178
|
92
|
64
|
54
|
56
|
70
|
69
|
80
|
42
|
55
|
50
|
55
|
67
|
60
|
53
|
49
|
55
|
56
|
61
|
|
|
2025/03
|
66
|
57
|
30
|
33
|
61
|
47
|
65
|
85
|
80
|
65
|
96
|
109
|
77
|
42
|
37
|
39
|
40
|
43
|
49
|
54
|
46
|
55
|
62
|
91
|
82
|
73
|
116
|
75
|
104
|
57
|
44
|
|
2025/02
|
41
|
78
|
89
|
71
|
54
|
40
|
55
|
32
|
44
|
66
|
66
|
103
|
56
|
70
|
96
|
85
|
54
|
49
|
58
|
40
|
43
|
64
|
54
|
58
|
85
|
102
|
114
|
103
|
|||
|
2025/01
|
82
|
98
|
78
|
76
|
110
|
84
|
48
|
67
|
37
|
49
|
65
|
75
|
90
|
115
|
59
|
63
|
79
|
100
|
116
|
159
|
170
|
108
|
44
|
36
|
32
|
71
|
48
|
81
|
152
|
80
|
81
|
|
2024/12
|
67
|
88
|
53
|
51
|
88
|
132
|
121
|
35
|
53
|
55
|
61
|
52
|
86
|
55
|
63
|
65
|
100
|
58
|
47
|
67
|
85
|
60
|
62
|
78
|
107
|
104
|
63
|
68
|
72
|
83
|
93
|
|
2024/11
|
32
|
65
|
72
|
58
|
43
|
47
|
40
|
40
|
46
|
45
|
56
|
63
|
71
|
68
|
68
|
38
|
29
|
30
|
27
|
41
|
60
|
75
|
34
|
42
|
30
|
37
|
71
|
61
|
51
|
62
|
|
|
2024/10
|
26
|
33
|
31
|
32
|
29
|
14
|
12
|
29
|
37
|
54
|
64
|
78
|
39
|
40
|
65
|
56
|
34
|
20
|
32
|
38
|
36
|
38
|
42
|
41
|
41
|
33
|
38
|
53
|
43
|
41
|
39
|
|
2024/09
|
46
|
40
|
24
|
37
|
43
|
38
|
37
|
34
|
26
|
33
|
14
|
22
|
35
|
32
|
25
|
21
|
13
|
28
|
21
|
12
|
29
|
30
|
33
|
34
|
39
|
32
|
38
|
32
|
39
|
44
|
|
|
2024/08
|
23
|
22
|
32
|
39
|
35
|
39
|
40
|
36
|
42
|
44
|
66
|
64
|
40
|
28
|
22
|
26
|
30
|
33
|
26
|
11
|
30
|
41
|
41
|
48
|
36
|
39
|
21
|
22
|
23
|
31
|
39
|
|
2024/07
|
21
|
23
|
34
|
20
|
27
|
28
|
27
|
32
|
31
|
44
|
49
|
40
|
19
|
21
|
37
|
46
|
33
|
23
|
25
|
23
|
23
|
30
|
39
|
40
|
25
|
24
|
20
|
23
|
35
|
36
|
27
|
|
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