Air Quality
Excellent
No health implications.
14
PM2.5
36
PM10
108
O3
0.4
CO
6
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 May
86
Good
Sun
4 May
85
Good
Mon
5 May
95
Good
Tue
6 May
99
Good
Wed
7 May
90
Good
Thu
8 May
86
Good
Fri
9 May
34
Excellent
Air quality in the last 12 months (Tongbai)
|
2025/02
|
90
|
90
|
103
|
69
|
55
|
44
|
85
|
54
|
56
|
74
|
95
|
85
|
61
|
73
|
74
|
76
|
80
|
74
|
101
|
94
|
85
|
101
|
124
|
88
|
72
|
103
|
94
|
97
|
|||
|
2025/01
|
138
|
150
|
140
|
206
|
100
|
73
|
66
|
66
|
54
|
66
|
72
|
81
|
95
|
117
|
69
|
62
|
67
|
92
|
124
|
109
|
127
|
216
|
111
|
73
|
65
|
59
|
59
|
98
|
201
|
147
|
121
|
|
2024/12
|
74
|
80
|
80
|
103
|
68
|
66
|
79
|
63
|
58
|
81
|
99
|
113
|
81
|
53
|
55
|
76
|
98
|
72
|
55
|
75
|
76
|
59
|
71
|
93
|
102
|
153
|
175
|
53
|
82
|
90
|
85
|
|
2024/11
|
125
|
92
|
87
|
71
|
57
|
69
|
67
|
58
|
62
|
77
|
88
|
113
|
89
|
106
|
109
|
60
|
31
|
38
|
35
|
46
|
43
|
68
|
102
|
65
|
49
|
38
|
55
|
50
|
45
|
62
|
|
|
2024/10
|
42
|
59
|
53
|
51
|
63
|
49
|
54
|
86
|
61
|
86
|
88
|
109
|
139
|
69
|
69
|
112
|
60
|
20
|
37
|
45
|
53
|
39
|
40
|
52
|
62
|
85
|
101
|
106
|
80
|
68
|
60
|
|
2024/09
|
40
|
45
|
39
|
41
|
50
|
36
|
49
|
50
|
48
|
49
|
36
|
32
|
28
|
47
|
49
|
50
|
48
|
36
|
18
|
48
|
29
|
32
|
48
|
56
|
57
|
58
|
60
|
52
|
51
|
30
|
|
|
2024/08
|
16
|
17
|
23
|
22
|
25
|
18
|
22
|
32
|
32
|
50
|
85
|
33
|
35
|
42
|
36
|
31
|
33
|
38
|
26
|
25
|
19
|
39
|
41
|
36
|
35
|
34
|
20
|
24
|
34
|
33
|
32
|
|
2024/07
|
40
|
29
|
31
|
17
|
29
|
22
|
24
|
25
|
18
|
42
|
35
|
25
|
27
|
27
|
26
|
37
|
28
|
18
|
22
|
20
|
26
|
25
|
27
|
29
|
38
|
36
|
21
|
15
|
15
|
18
|
15
|
|
2024/06
|
70
|
60
|
51
|
42
|
44
|
49
|
41
|
51
|
47
|
42
|
43
|
43
|
34
|
45
|
52
|
52
|
38
|
48
|
51
|
34
|
41
|
35
|
38
|
85
|
76
|
51
|
49
|
17
|
19
|
32
|
|
|
2024/05
|
39
|
40
|
46
|
47
|
50
|
53
|
61
|
54
|
55
|
61
|
109
|
101
|
89
|
76
|
93
|
56
|
67
|
58
|
61
|
56
|
60
|
57
|
54
|
53
|
59
|
52
|
58
|
48
|
50
|
47
|
53
|
|
2024/04
|
53
|
71
|
79
|
62
|
55
|
41
|
51
|
54
|
44
|
52
|
66
|
56
|
59
|
60
|
49
|
50
|
54
|
55
|
51
|
56
|
71
|
68
|
106
|
84
|
80
|
64
|
59
|
56
|
64
|
55
|
|
|
2024/03
|
116
|
96
|
60
|
67
|
136
|
118
|
104
|
71
|
71
|
72
|
76
|
81
|
88
|
93
|
76
|
96
|
106
|
81
|
89
|
98
|
80
|
66
|
57
|
46
|
46
|
44
|
52
|
68
|
49
|
66
|
85
|
|
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