Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
42
O3
0.3
CO
4
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Jun
40
Excellent
Tue
1 Jul
33
Excellent
Wed
2 Jul
36
Excellent
Thu
3 Jul
69
Good
Fri
4 Jul
73
Good
Sat
5 Jul
42
Excellent
Sun
6 Jul
39
Excellent
Air quality in the last 12 months (Dachuan)
|
2025/05
|
52
|
66
|
65
|
43
|
55
|
57
|
50
|
28
|
75
|
77
|
63
|
58
|
48
|
45
|
74
|
78
|
80
|
62
|
71
|
78
|
66
|
29
|
62
|
65
|
56
|
47
|
40
|
24
|
28
|
32
|
19
|
|
2025/04
|
42
|
58
|
63
|
57
|
62
|
63
|
63
|
66
|
69
|
53
|
37
|
340
|
286
|
152
|
99
|
84
|
86
|
70
|
57
|
35
|
34
|
55
|
67
|
55
|
56
|
59
|
50
|
50
|
51
|
39
|
|
|
2025/03
|
85
|
74
|
17
|
17
|
21
|
35
|
43
|
53
|
56
|
48
|
54
|
52
|
32
|
34
|
23
|
29
|
47
|
48
|
58
|
58
|
62
|
76
|
84
|
70
|
66
|
66
|
135
|
50
|
30
|
37
|
36
|
|
2025/02
|
49
|
32
|
36
|
36
|
40
|
32
|
38
|
37
|
51
|
63
|
83
|
69
|
48
|
45
|
43
|
58
|
65
|
57
|
64
|
36
|
42
|
31
|
30
|
46
|
64
|
87
|
77
|
73
|
|||
|
2025/01
|
155
|
156
|
156
|
88
|
59
|
80
|
99
|
70
|
76
|
69
|
83
|
82
|
109
|
126
|
100
|
79
|
85
|
121
|
129
|
123
|
144
|
210
|
236
|
69
|
16
|
51
|
69
|
76
|
125
|
101
|
122
|
|
2024/12
|
87
|
91
|
97
|
37
|
31
|
32
|
36
|
41
|
46
|
59
|
53
|
57
|
64
|
68
|
82
|
101
|
119
|
130
|
86
|
108
|
137
|
121
|
80
|
101
|
98
|
118
|
100
|
88
|
113
|
170
|
167
|
|
2024/11
|
28
|
34
|
49
|
41
|
32
|
42
|
49
|
58
|
30
|
42
|
43
|
37
|
29
|
35
|
46
|
21
|
12
|
13
|
17
|
23
|
39
|
39
|
36
|
31
|
20
|
44
|
53
|
52
|
66
|
86
|
|
|
2024/10
|
26
|
36
|
43
|
43
|
51
|
56
|
44
|
43
|
54
|
52
|
44
|
38
|
37
|
37
|
46
|
46
|
28
|
28
|
28
|
13
|
17
|
26
|
42
|
48
|
50
|
49
|
45
|
45
|
52
|
61
|
44
|
|
2024/09
|
50
|
51
|
30
|
43
|
47
|
33
|
34
|
26
|
32
|
26
|
36
|
31
|
36
|
37
|
28
|
30
|
30
|
42
|
46
|
34
|
16
|
16
|
29
|
43
|
56
|
69
|
58
|
50
|
42
|
12
|
|
|
2024/08
|
24
|
30
|
26
|
18
|
17
|
21
|
28
|
35
|
38
|
46
|
67
|
62
|
57
|
38
|
33
|
38
|
38
|
34
|
49
|
46
|
43
|
43
|
41
|
62
|
69
|
46
|
50
|
26
|
20
|
30
|
35
|
|
2024/07
|
28
|
26
|
29
|
25
|
15
|
19
|
29
|
14
|
16
|
13
|
14
|
18
|
16
|
11
|
20
|
21
|
26
|
19
|
23
|
26
|
21
|
22
|
24
|
26
|
39
|
45
|
33
|
47
|
39
|
10
|
15
|
|
2024/06
|
54
|
36
|
32
|
22
|
36
|
31
|
35
|
27
|
30
|
38
|
39
|
37
|
52
|
50
|
45
|
30
|
28
|
25
|
21
|
20
|
14
|
32
|
45
|
57
|
32
|
27
|
26
|
26
|
33
|
47
|
|
|
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