Air Quality
Excellent
No health implications.
30
PM2.5
39
PM10
62
O3
0.6
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Feb
70
Good
Sat
28 Feb
65
Good
Sun
1 Mar
67
Good
Mon
2 Mar
90
Good
Tue
3 Mar
114
Light
Wed
4 Mar
106
Light
Thu
5 Mar
42
Excellent
Hejin Air quality rank
Air quality in the last 12 months (Hejin)
|
2026/01
|
90
|
115
|
155
|
137
|
81
|
41
|
58
|
68
|
70
|
77
|
60
|
79
|
100
|
119
|
127
|
99
|
93
|
96
|
48
|
34
|
51
|
71
|
110
|
110
|
112
|
142
|
132
|
135
|
111
|
140
|
148
|
|
2025/12
|
88
|
62
|
53
|
81
|
91
|
117
|
115
|
87
|
104
|
126
|
119
|
58
|
94
|
124
|
112
|
132
|
110
|
90
|
101
|
56
|
65
|
79
|
105
|
98
|
57
|
69
|
86
|
112
|
112
|
90
|
70
|
|
2025/11
|
76
|
80
|
71
|
80
|
78
|
66
|
47
|
47
|
83
|
88
|
92
|
85
|
61
|
85
|
100
|
78
|
23
|
29
|
60
|
72
|
80
|
96
|
101
|
123
|
93
|
162
|
235
|
137
|
126
|
110
|
|
|
2025/10
|
48
|
35
|
43
|
43
|
40
|
21
|
23
|
25
|
20
|
20
|
20
|
23
|
37
|
50
|
33
|
35
|
25
|
26
|
42
|
31
|
34
|
51
|
66
|
72
|
44
|
58
|
61
|
70
|
77
|
99
|
76
|
|
2025/09
|
44
|
39
|
19
|
15
|
32
|
53
|
64
|
57
|
43
|
42
|
26
|
26
|
42
|
52
|
47
|
39
|
25
|
20
|
24
|
49
|
25
|
23
|
29
|
41
|
46
|
38
|
38
|
52
|
51
|
62
|
|
|
2025/08
|
37
|
42
|
42
|
42
|
33
|
38
|
40
|
33
|
30
|
35
|
40
|
45
|
52
|
48
|
34
|
18
|
30
|
36
|
32
|
30
|
34
|
48
|
33
|
28
|
44
|
41
|
31
|
24
|
29
|
43
|
44
|
|
2025/07
|
33
|
27
|
29
|
37
|
22
|
37
|
28
|
39
|
43
|
42
|
50
|
52
|
48
|
43
|
47
|
52
|
46
|
46
|
43
|
34
|
39
|
45
|
25
|
23
|
28
|
33
|
35
|
35
|
41
|
39
|
37
|
|
2025/06
|
49
|
48
|
46
|
56
|
50
|
58
|
68
|
58
|
63
|
60
|
60
|
51
|
54
|
43
|
45
|
49
|
49
|
41
|
32
|
46
|
37
|
41
|
42
|
44
|
51
|
33
|
42
|
28
|
37
|
32
|
|
|
2025/05
|
76
|
88
|
50
|
70
|
206
|
269
|
138
|
96
|
64
|
48
|
52
|
58
|
66
|
64
|
62
|
73
|
181
|
90
|
83
|
71
|
74
|
88
|
50
|
45
|
48
|
46
|
51
|
59
|
60
|
56
|
55
|
|
2025/04
|
79
|
77
|
73
|
98
|
71
|
88
|
101
|
99
|
94
|
66
|
132
|
214
|
144
|
64
|
60
|
106
|
130
|
94
|
69
|
69
|
88
|
158
|
121
|
69
|
66
|
66
|
60
|
53
|
61
|
120
|
|
|
2025/03
|
84
|
74
|
36
|
47
|
76
|
81
|
73
|
83
|
70
|
79
|
113
|
193
|
104
|
73
|
44
|
39
|
48
|
44
|
50
|
51
|
60
|
76
|
111
|
234
|
175
|
243
|
218
|
169
|
83
|
63
|
65
|
|
2025/02
|
165
|
127
|
34
|
49
|
39
|
87
|
57
|
38
|
64
|
83
|
85
|
80
|
78
|
88
|
92
|
77
|
78
|
88
|
79
|
83
|
103
|
105
|
61
|
62
|
75
|
70
|
77
|
87
|
|||
|
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