Air Quality
Excellent
No health implications.
17
PM2.5
4
PM10
61
O3
0.4
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Apr
37
Excellent
Wed
1 May
32
Excellent
Thu
2 May
32
Excellent
Fri
3 May
34
Excellent
Sat
4 May
35
Excellent
Sun
5 May
32
Excellent
Air quality in the last 12 months (Dachuan)
|
2024/02
|
82
|
27
|
24
|
32
|
48
|
48
|
45
|
56
|
87
|
118
|
86
|
62
|
72
|
84
|
31
|
34
|
44
|
64
|
266
|
207
|
18
|
17
|
29
|
36
|
47
|
51
|
57
|
62
|
54
|
||
|
2024/01
|
184
|
79
|
73
|
73
|
100
|
139
|
132
|
99
|
97
|
115
|
144
|
117
|
125
|
183
|
98
|
28
|
38
|
45
|
28
|
36
|
29
|
33
|
44
|
47
|
61
|
71
|
90
|
93
|
116
|
110
|
124
|
|
2023/12
|
39
|
58
|
60
|
71
|
64
|
64
|
74
|
84
|
99
|
112
|
22
|
36
|
55
|
37
|
28
|
56
|
56
|
49
|
67
|
74
|
86
|
77
|
92
|
99
|
106
|
118
|
134
|
176
|
224
|
189
|
142
|
|
2023/11
|
50
|
63
|
43
|
24
|
24
|
41
|
50
|
48
|
62
|
42
|
23
|
25
|
23
|
40
|
38
|
77
|
69
|
68
|
75
|
70
|
70
|
96
|
95
|
91
|
50
|
42
|
50
|
55
|
70
|
32
|
|
|
2023/10
|
16
|
14
|
19
|
13
|
17
|
20
|
20
|
26
|
42
|
40
|
41
|
31
|
39
|
51
|
51
|
51
|
55
|
44
|
20
|
28
|
38
|
41
|
51
|
65
|
53
|
45
|
34
|
39
|
46
|
41
|
50
|
|
2023/09
|
51
|
60
|
59
|
61
|
54
|
48
|
48
|
57
|
65
|
88
|
48
|
16
|
26
|
31
|
43
|
55
|
70
|
48
|
25
|
15
|
20
|
19
|
15
|
16
|
16
|
17
|
22
|
19
|
15
|
23
|
|
|
2023/08
|
27
|
24
|
25
|
29
|
28
|
28
|
25
|
29
|
37
|
34
|
31
|
34
|
29
|
41
|
44
|
51
|
48
|
60
|
59
|
34
|
33
|
50
|
45
|
43
|
44
|
19
|
23
|
35
|
38
|
44
|
51
|
|
2023/07
|
37
|
16
|
20
|
26
|
36
|
37
|
33
|
39
|
39
|
36
|
31
|
35
|
29
|
25
|
49
|
58
|
43
|
43
|
35
|
26
|
22
|
34
|
44
|
38
|
24
|
24
|
22
|
19
|
25
|
33
|
35
|
|
2023/06
|
24
|
24
|
16
|
16
|
21
|
26
|
27
|
45
|
46
|
60
|
56
|
51
|
51
|
36
|
30
|
22
|
19
|
24
|
38
|
47
|
35
|
36
|
29
|
28
|
43
|
43
|
36
|
25
|
20
|
37
|
|
|
2023/05
|
60
|
59
|
37
|
30
|
25
|
17
|
16
|
20
|
21
|
21
|
37
|
56
|
56
|
77
|
90
|
47
|
55
|
64
|
77
|
59
|
45
|
22
|
21
|
27
|
50
|
20
|
23
|
23
|
45
|
36
|
30
|
|
2023/04
|
54
|
53
|
31
|
18
|
16
|
61
|
73
|
71
|
74
|
74
|
68
|
61
|
52
|
51
|
63
|
62
|
60
|
50
|
55
|
56
|
42
|
14
|
14
|
15
|
27
|
40
|
47
|
55
|
75
|
74
|
|
|
2023/03
|
78
|
58
|
65
|
68
|
66
|
62
|
53
|
68
|
55
|
45
|
51
|
63
|
66
|
58
|
62
|
31
|
20
|
25
|
26
|
30
|
39
|
42
|
21
|
22
|
17
|
28
|
34
|
41
|
51
|
46
|
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