Air Quality
Excellent
No health implications.
26
PM2.5
32
PM10
51
O3
0.3
CO
10
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
31 May
59
Good
Sun
1 Jun
62
Good
Mon
2 Jun
60
Good
Tue
3 Jun
68
Good
Wed
4 Jun
72
Good
Thu
5 Jun
70
Good
Fri
6 Jun
40
Excellent
Air quality in the last 12 months (Tongnan)
|
2025/04
|
39
|
57
|
61
|
59
|
60
|
58
|
62
|
66
|
72
|
75
|
43
|
320
|
211
|
138
|
104
|
88
|
80
|
73
|
85
|
47
|
51
|
53
|
62
|
45
|
50
|
43
|
35
|
49
|
40
|
36
|
|
|
2025/03
|
88
|
63
|
23
|
24
|
20
|
18
|
30
|
44
|
59
|
63
|
54
|
63
|
55
|
47
|
35
|
36
|
28
|
34
|
45
|
53
|
61
|
95
|
89
|
68
|
65
|
74
|
137
|
69
|
17
|
22
|
24
|
|
2025/02
|
72
|
51
|
41
|
43
|
55
|
31
|
31
|
33
|
51
|
62
|
84
|
65
|
51
|
36
|
47
|
59
|
64
|
50
|
63
|
60
|
47
|
51
|
39
|
43
|
54
|
71
|
73
|
69
|
|||
|
2025/01
|
137
|
155
|
188
|
133
|
101
|
95
|
83
|
54
|
60
|
53
|
50
|
52
|
84
|
107
|
87
|
84
|
85
|
94
|
111
|
121
|
148
|
165
|
188
|
108
|
31
|
60
|
61
|
90
|
267
|
154
|
89
|
|
2024/12
|
71
|
91
|
80
|
70
|
39
|
32
|
40
|
44
|
43
|
50
|
58
|
67
|
42
|
54
|
66
|
81
|
96
|
146
|
101
|
96
|
123
|
115
|
93
|
81
|
103
|
111
|
110
|
81
|
96
|
95
|
113
|
|
2024/11
|
48
|
51
|
58
|
60
|
39
|
58
|
59
|
75
|
50
|
46
|
49
|
63
|
57
|
52
|
43
|
33
|
25
|
20
|
24
|
28
|
38
|
48
|
47
|
38
|
25
|
40
|
45
|
53
|
70
|
67
|
|
|
2024/10
|
27
|
35
|
31
|
49
|
70
|
62
|
42
|
59
|
61
|
67
|
64
|
44
|
45
|
60
|
66
|
83
|
31
|
45
|
54
|
25
|
28
|
28
|
51
|
59
|
64
|
63
|
30
|
58
|
71
|
68
|
57
|
|
2024/09
|
50
|
51
|
43
|
37
|
48
|
51
|
50
|
39
|
32
|
32
|
32
|
38
|
46
|
51
|
49
|
37
|
49
|
64
|
57
|
54
|
27
|
44
|
43
|
67
|
69
|
84
|
78
|
69
|
69
|
15
|
|
|
2024/08
|
39
|
35
|
23
|
26
|
26
|
43
|
43
|
36
|
29
|
38
|
48
|
58
|
65
|
62
|
51
|
38
|
75
|
63
|
58
|
67
|
60
|
59
|
42
|
33
|
28
|
38
|
58
|
60
|
37
|
47
|
39
|
|
2024/07
|
28
|
35
|
35
|
32
|
20
|
34
|
38
|
33
|
34
|
19
|
21
|
32
|
34
|
18
|
29
|
31
|
36
|
32
|
33
|
28
|
33
|
30
|
33
|
34
|
72
|
66
|
46
|
35
|
31
|
31
|
37
|
|
2024/06
|
61
|
36
|
45
|
24
|
34
|
33
|
34
|
37
|
39
|
40
|
47
|
39
|
48
|
49
|
56
|
33
|
38
|
39
|
27
|
28
|
23
|
36
|
43
|
41
|
40
|
37
|
23
|
20
|
28
|
41
|
|
|
2024/05
|
32
|
40
|
40
|
55
|
48
|
73
|
77
|
107
|
50
|
69
|
63
|
55
|
56
|
60
|
49
|
55
|
53
|
71
|
38
|
18
|
25
|
34
|
35
|
45
|
39
|
26
|
43
|
38
|
28
|
32
|
49
|
|
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