Air Quality
Excellent
No health implications.
20
PM2.5
41
PM10
28
O3
0.5
CO
7
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Apr
55
Good
Thu
1 May
87
Good
Fri
2 May
84
Good
Sat
3 May
83
Good
Sun
4 May
54
Good
Mon
5 May
46
Excellent
Tue
6 May
45
Excellent
Air quality in the last 12 months (Tianzhu)
|
2025/02
|
18
|
14
|
41
|
55
|
62
|
60
|
43
|
64
|
49
|
47
|
55
|
66
|
64
|
47
|
35
|
41
|
31
|
31
|
30
|
28
|
79
|
26
|
41
|
84
|
38
|
35
|
33
|
35
|
|||
|
2025/01
|
100
|
106
|
108
|
131
|
131
|
84
|
74
|
61
|
45
|
57
|
61
|
67
|
70
|
71
|
68
|
70
|
77
|
92
|
85
|
91
|
109
|
127
|
153
|
147
|
31
|
25
|
43
|
76
|
183
|
85
|
40
|
|
2024/12
|
53
|
63
|
88
|
101
|
30
|
29
|
37
|
49
|
62
|
18
|
30
|
63
|
70
|
52
|
45
|
49
|
72
|
72
|
78
|
88
|
96
|
85
|
76
|
78
|
81
|
84
|
82
|
104
|
101
|
108
|
76
|
|
2024/11
|
43
|
57
|
61
|
58
|
67
|
63
|
49
|
47
|
57
|
54
|
47
|
56
|
66
|
72
|
87
|
72
|
23
|
13
|
12
|
16
|
24
|
28
|
53
|
34
|
21
|
19
|
29
|
34
|
36
|
45
|
|
|
2024/10
|
14
|
29
|
43
|
37
|
44
|
52
|
49
|
34
|
34
|
41
|
53
|
70
|
70
|
35
|
33
|
27
|
33
|
27
|
15
|
15
|
19
|
15
|
22
|
24
|
31
|
34
|
34
|
41
|
46
|
44
|
49
|
|
2024/09
|
25
|
23
|
25
|
23
|
38
|
37
|
33
|
28
|
23
|
23
|
29
|
30
|
29
|
23
|
32
|
31
|
34
|
31
|
30
|
28
|
26
|
21
|
29
|
32
|
38
|
43
|
46
|
40
|
45
|
40
|
|
|
2024/08
|
11
|
17
|
18
|
17
|
21
|
21
|
22
|
22
|
21
|
22
|
21
|
36
|
33
|
36
|
37
|
34
|
30
|
29
|
26
|
23
|
21
|
17
|
14
|
13
|
17
|
20
|
21
|
22
|
24
|
26
|
28
|
|
2024/07
|
15
|
15
|
15
|
16
|
14
|
13
|
15
|
14
|
18
|
19
|
20
|
20
|
19
|
19
|
17
|
20
|
17
|
16
|
12
|
15
|
19
|
20
|
18
|
20
|
23
|
25
|
25
|
17
|
12
|
16
|
14
|
|
2024/06
|
21
|
19
|
21
|
11
|
12
|
15
|
20
|
16
|
16
|
14
|
15
|
16
|
16
|
15
|
21
|
22
|
11
|
9
|
17
|
22
|
18
|
17
|
15
|
14
|
13
|
12
|
12
|
17
|
12
|
12
|
|
|
2024/05
|
16
|
23
|
15
|
13
|
20
|
31
|
29
|
33
|
30
|
25
|
19
|
34
|
37
|
42
|
49
|
54
|
43
|
21
|
14
|
16
|
18
|
31
|
29
|
27
|
29
|
17
|
15
|
28
|
23
|
14
|
16
|
|
2024/04
|
35
|
44
|
26
|
22
|
17
|
17
|
20
|
25
|
29
|
32
|
33
|
32
|
33
|
36
|
51
|
41
|
19
|
24
|
20
|
20
|
35
|
42
|
31
|
34
|
27
|
24
|
23
|
28
|
34
|
13
|
|
|
2024/03
|
66
|
48
|
48
|
26
|
23
|
54
|
63
|
50
|
51
|
49
|
42
|
43
|
25
|
29
|
31
|
24
|
26
|
14
|
35
|
65
|
65
|
51
|
33
|
40
|
24
|
18
|
35
|
24
|
30
|
37
|
34
|
|
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