Air Quality
Excellent
No health implications.
17
PM2.5
40
PM10
67
O3
0.4
CO
6
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Mar
68
Good
Wed
18 Mar
68
Good
Thu
19 Mar
75
Good
Fri
20 Mar
77
Good
Sat
21 Mar
80
Good
Sun
22 Mar
89
Good
Mon
23 Mar
26
Excellent
Chencang Air quality rank
Air quality in the last 12 months (Chencang)
|
2026/02
|
125
|
117
|
111
|
105
|
121
|
151
|
76
|
72
|
85
|
127
|
124
|
105
|
77
|
97
|
68
|
48
|
131
|
100
|
82
|
59
|
174
|
283
|
181
|
75
|
66
|
82
|
69
|
58
|
|||
|
2026/01
|
85
|
121
|
127
|
84
|
66
|
73
|
61
|
74
|
70
|
74
|
84
|
81
|
74
|
88
|
89
|
92
|
112
|
151
|
57
|
47
|
79
|
97
|
134
|
183
|
226
|
190
|
156
|
174
|
161
|
95
|
115
|
|
2025/12
|
87
|
79
|
82
|
94
|
109
|
120
|
65
|
79
|
106
|
111
|
92
|
86
|
95
|
88
|
119
|
109
|
94
|
121
|
117
|
55
|
68
|
113
|
103
|
89
|
62
|
87
|
106
|
136
|
122
|
185
|
108
|
|
2025/11
|
60
|
67
|
110
|
135
|
143
|
111
|
66
|
59
|
68
|
76
|
77
|
73
|
66
|
76
|
61
|
59
|
39
|
40
|
44
|
60
|
61
|
63
|
56
|
79
|
67
|
166
|
147
|
75
|
64
|
57
|
|
|
2025/10
|
29
|
26
|
39
|
19
|
30
|
17
|
13
|
25
|
11
|
11
|
12
|
15
|
33
|
60
|
25
|
38
|
15
|
34
|
38
|
22
|
42
|
53
|
67
|
75
|
72
|
40
|
63
|
62
|
74
|
67
|
59
|
|
2025/09
|
39
|
43
|
55
|
30
|
42
|
48
|
48
|
38
|
47
|
51
|
32
|
19
|
37
|
47
|
46
|
40
|
28
|
11
|
15
|
35
|
17
|
17
|
25
|
28
|
43
|
49
|
31
|
27
|
35
|
43
|
|
|
2025/08
|
41
|
44
|
45
|
40
|
29
|
37
|
42
|
31
|
19
|
25
|
33
|
36
|
38
|
51
|
38
|
32
|
26
|
29
|
22
|
41
|
47
|
33
|
16
|
25
|
41
|
49
|
20
|
14
|
14
|
22
|
29
|
|
2025/07
|
31
|
37
|
21
|
22
|
19
|
12
|
14
|
31
|
34
|
47
|
34
|
39
|
46
|
41
|
33
|
41
|
45
|
35
|
39
|
25
|
26
|
57
|
37
|
27
|
21
|
24
|
26
|
35
|
35
|
36
|
42
|
|
2025/06
|
49
|
43
|
44
|
36
|
33
|
48
|
34
|
39
|
48
|
41
|
52
|
45
|
46
|
50
|
74
|
50
|
51
|
51
|
46
|
45
|
32
|
32
|
31
|
38
|
30
|
30
|
30
|
28
|
35
|
22
|
|
|
2025/05
|
89
|
58
|
96
|
70
|
101
|
318
|
161
|
77
|
88
|
54
|
54
|
60
|
45
|
72
|
68
|
65
|
201
|
133
|
70
|
67
|
63
|
92
|
49
|
50
|
42
|
42
|
51
|
46
|
39
|
51
|
37
|
|
2025/04
|
92
|
90
|
89
|
109
|
97
|
81
|
68
|
82
|
104
|
92
|
135
|
403
|
138
|
70
|
57
|
155
|
96
|
171
|
126
|
79
|
73
|
119
|
84
|
62
|
69
|
54
|
41
|
48
|
61
|
106
|
|
|
2025/03
|
166
|
67
|
37
|
52
|
70
|
74
|
83
|
92
|
92
|
83
|
297
|
196
|
103
|
40
|
69
|
56
|
57
|
50
|
53
|
64
|
68
|
72
|
72
|
58
|
54
|
325
|
230
|
99
|
91
|
91
|
74
|
|
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