Air Quality
Excellent
No health implications.
10
PM2.5
20
PM10
122
O3
0.8
CO
8
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 May
70
Good
Tue
19 May
71
Good
Wed
20 May
75
Good
Thu
21 May
65
Good
Fri
22 May
74
Good
Sat
23 May
74
Good
Sun
24 May
18
Excellent
Air quality in the last 12 months (Hancheng)
|
2026/04
|
47
|
67
|
114
|
78
|
81
|
81
|
80
|
73
|
57
|
57
|
57
|
66
|
59
|
48
|
55
|
49
|
42
|
60
|
153
|
126
|
47
|
26
|
48
|
44
|
55
|
59
|
118
|
68
|
61
|
57
|
|
|
2026/03
|
22
|
46
|
86
|
71
|
65
|
41
|
56
|
74
|
99
|
131
|
82
|
100
|
158
|
61
|
49
|
81
|
79
|
69
|
72
|
80
|
88
|
106
|
84
|
66
|
84
|
72
|
61
|
76
|
59
|
52
|
48
|
|
2026/02
|
123
|
94
|
76
|
115
|
138
|
81
|
44
|
50
|
66
|
106
|
94
|
100
|
106
|
108
|
74
|
65
|
200
|
110
|
77
|
68
|
144
|
416
|
103
|
58
|
66
|
72
|
45
|
29
|
|||
|
2026/01
|
84
|
110
|
149
|
118
|
71
|
42
|
55
|
65
|
67
|
75
|
61
|
75
|
95
|
114
|
121
|
95
|
93
|
95
|
48
|
34
|
49
|
70
|
107
|
110
|
105
|
142
|
132
|
134
|
110
|
135
|
142
|
|
2025/12
|
85
|
61
|
53
|
76
|
87
|
116
|
110
|
87
|
103
|
122
|
117
|
61
|
92
|
117
|
109
|
123
|
104
|
91
|
98
|
54
|
66
|
79
|
98
|
96
|
56
|
67
|
85
|
109
|
110
|
92
|
69
|
|
2025/11
|
72
|
77
|
71
|
79
|
78
|
65
|
40
|
46
|
83
|
91
|
90
|
82
|
60
|
83
|
95
|
77
|
23
|
32
|
56
|
71
|
79
|
91
|
90
|
114
|
90
|
158
|
204
|
124
|
116
|
105
|
|
|
2025/10
|
45
|
32
|
38
|
40
|
36
|
19
|
20
|
22
|
19
|
18
|
18
|
20
|
33
|
46
|
31
|
33
|
23
|
25
|
40
|
29
|
31
|
49
|
63
|
70
|
45
|
54
|
60
|
68
|
74
|
91
|
72
|
|
2025/09
|
42
|
37
|
18
|
14
|
31
|
50
|
62
|
55
|
42
|
40
|
25
|
24
|
39
|
50
|
46
|
37
|
24
|
17
|
21
|
44
|
21
|
19
|
25
|
36
|
43
|
36
|
35
|
46
|
46
|
59
|
|
|
2025/08
|
35
|
41
|
41
|
41
|
32
|
37
|
38
|
30
|
28
|
33
|
39
|
43
|
50
|
46
|
35
|
18
|
29
|
34
|
30
|
28
|
37
|
48
|
32
|
26
|
41
|
41
|
30
|
22
|
27
|
38
|
39
|
|
2025/07
|
30
|
24
|
27
|
34
|
23
|
36
|
28
|
39
|
43
|
40
|
48
|
51
|
47
|
40
|
46
|
51
|
45
|
45
|
42
|
30
|
35
|
43
|
23
|
21
|
26
|
31
|
34
|
34
|
39
|
37
|
37
|
|
2025/06
|
46
|
46
|
47
|
57
|
48
|
58
|
65
|
57
|
62
|
58
|
59
|
50
|
54
|
45
|
48
|
52
|
50
|
39
|
29
|
43
|
36
|
39
|
40
|
43
|
47
|
29
|
38
|
27
|
35
|
29
|
|
|
2025/05
|
77
|
89
|
52
|
71
|
209
|
306
|
144
|
100
|
67
|
48
|
51
|
58
|
65
|
68
|
63
|
73
|
193
|
94
|
82
|
71
|
71
|
91
|
50
|
47
|
47
|
45
|
49
|
58
|
59
|
56
|
51
|
|
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