Air Quality
Excellent
No health implications.
27
PM2.5
46
PM10
60
O3
0.3
CO
4
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Jan
54
Good
Mon
19 Jan
53
Good
Tue
20 Jan
55
Good
Wed
21 Jan
59
Good
Thu
22 Jan
86
Good
Fri
23 Jan
112
Light
Sat
24 Jan
49
Excellent
Tianchang Air quality rank
Air quality in the last 12 months (Tianchang)
|
2025/11
|
117
|
71
|
35
|
51
|
46
|
47
|
49
|
18
|
49
|
53
|
32
|
52
|
82
|
108
|
96
|
82
|
31
|
42
|
54
|
52
|
103
|
120
|
111
|
99
|
84
|
70
|
234
|
139
|
94
|
88
|
|
|
2025/10
|
35
|
37
|
16
|
28
|
48
|
57
|
33
|
30
|
32
|
45
|
62
|
45
|
19
|
28
|
42
|
19
|
29
|
20
|
27
|
27
|
23
|
28
|
31
|
47
|
46
|
49
|
51
|
48
|
42
|
33
|
38
|
|
2025/09
|
19
|
21
|
32
|
32
|
46
|
49
|
37
|
36
|
16
|
27
|
32
|
30
|
16
|
35
|
25
|
43
|
25
|
19
|
26
|
23
|
30
|
28
|
34
|
16
|
10
|
18
|
26
|
25
|
38
|
31
|
|
|
2025/08
|
14
|
9
|
19
|
25
|
33
|
34
|
20
|
22
|
29
|
9
|
10
|
15
|
36
|
22
|
25
|
31
|
37
|
37
|
38
|
39
|
45
|
33
|
28
|
28
|
20
|
15
|
37
|
33
|
37
|
30
|
14
|
|
2025/07
|
34
|
35
|
36
|
41
|
43
|
46
|
40
|
16
|
17
|
46
|
37
|
27
|
30
|
27
|
41
|
39
|
27
|
28
|
26
|
22
|
22
|
20
|
23
|
26
|
26
|
20
|
19
|
14
|
22
|
15
|
11
|
|
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
|
|
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