Air Quality
Excellent
No health implications.
3
PM2.5
10
PM10
26
O3
0.5
CO
7
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 Mar
55
Good
Wed
5 Mar
51
Good
Thu
6 Mar
52
Good
Fri
7 Mar
55
Good
Sat
8 Mar
62
Good
Sun
9 Mar
23
Excellent
Mon
10 Mar
19
Excellent
Air quality in the last 12 months (Tongchuan)
|
2025/01
|
162
|
164
|
169
|
85
|
59
|
82
|
101
|
70
|
74
|
71
|
78
|
84
|
105
|
127
|
102
|
75
|
91
|
124
|
127
|
123
|
142
|
206
|
239
|
71
|
11
|
50
|
69
|
77
|
147
|
109
|
126
|
|
2024/12
|
82
|
87
|
90
|
31
|
26
|
28
|
31
|
36
|
44
|
56
|
53
|
57
|
63
|
69
|
84
|
104
|
125
|
136
|
88
|
108
|
141
|
120
|
78
|
101
|
98
|
113
|
101
|
89
|
121
|
174
|
172
|
|
2024/11
|
26
|
31
|
48
|
36
|
31
|
42
|
47
|
55
|
26
|
38
|
40
|
33
|
28
|
33
|
42
|
19
|
9
|
10
|
13
|
21
|
34
|
34
|
33
|
26
|
18
|
42
|
51
|
50
|
63
|
80
|
|
|
2024/10
|
24
|
34
|
41
|
42
|
47
|
57
|
41
|
40
|
48
|
46
|
38
|
33
|
32
|
31
|
39
|
46
|
23
|
23
|
24
|
9
|
15
|
23
|
38
|
45
|
48
|
47
|
41
|
44
|
50
|
60
|
37
|
|
2024/09
|
47
|
50
|
25
|
39
|
43
|
29
|
33
|
24
|
27
|
23
|
32
|
28
|
32
|
35
|
25
|
29
|
27
|
36
|
42
|
34
|
15
|
13
|
29
|
41
|
51
|
69
|
58
|
50
|
39
|
10
|
|
|
2024/08
|
25
|
30
|
24
|
15
|
14
|
19
|
26
|
30
|
34
|
45
|
64
|
58
|
56
|
34
|
32
|
37
|
38
|
34
|
48
|
43
|
44
|
42
|
40
|
60
|
66
|
41
|
45
|
22
|
18
|
25
|
32
|
|
2024/07
|
24
|
22
|
26
|
19
|
12
|
15
|
23
|
12
|
14
|
11
|
11
|
15
|
12
|
9
|
18
|
19
|
22
|
15
|
19
|
20
|
17
|
18
|
23
|
22
|
35
|
41
|
35
|
44
|
35
|
7
|
15
|
|
2024/06
|
51
|
32
|
29
|
19
|
33
|
29
|
33
|
24
|
28
|
33
|
37
|
35
|
46
|
47
|
43
|
28
|
25
|
24
|
20
|
16
|
13
|
29
|
42
|
54
|
30
|
23
|
20
|
20
|
27
|
41
|
|
|
2024/05
|
16
|
19
|
15
|
24
|
39
|
57
|
80
|
45
|
31
|
36
|
42
|
65
|
68
|
73
|
64
|
58
|
59
|
74
|
19
|
12
|
27
|
36
|
39
|
42
|
36
|
22
|
23
|
39
|
24
|
35
|
45
|
|
2024/04
|
34
|
22
|
34
|
24
|
23
|
23
|
21
|
40
|
37
|
36
|
29
|
28
|
43
|
44
|
54
|
30
|
35
|
29
|
23
|
82
|
56
|
45
|
49
|
48
|
47
|
53
|
49
|
31
|
33
|
19
|
|
|
2024/03
|
47
|
51
|
64
|
73
|
86
|
58
|
37
|
45
|
56
|
68
|
67
|
66
|
39
|
49
|
58
|
51
|
60
|
17
|
56
|
73
|
71
|
69
|
57
|
37
|
23
|
29
|
35
|
44
|
51
|
58
|
55
|
|
2024/02
|
78
|
25
|
20
|
28
|
44
|
44
|
41
|
54
|
85
|
128
|
91
|
63
|
72
|
88
|
29
|
31
|
41
|
63
|
259
|
200
|
20
|
15
|
24
|
32
|
45
|
49
|
54
|
57
|
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