Air Quality
Excellent
No health implications.
10
PM2.5
19
PM10
65
O3
0.7
CO
6
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Jul
51
Good
Fri
31 Jul
44
Excellent
Sat
1 Aug
53
Good
Sun
2 Aug
52
Good
Mon
3 Aug
64
Good
Tue
4 Aug
63
Good
Wed
5 Aug
36
Excellent
Air quality in the last 12 months (Hejin)
|
2026/06
|
69
|
71
|
72
|
51
|
53
|
43
|
42
|
42
|
39
|
37
|
59
|
48
|
48
|
62
|
60
|
66
|
63
|
39
|
36
|
34
|
32
|
37
|
36
|
47
|
39
|
49
|
60
|
50
|
47
|
37
|
|
|
2026/05
|
51
|
34
|
38
|
51
|
50
|
51
|
46
|
46
|
46
|
59
|
74
|
75
|
61
|
46
|
55
|
34
|
27
|
29
|
47
|
39
|
47
|
38
|
48
|
48
|
32
|
36
|
55
|
54
|
54
|
52
|
54
|
|
2026/04
|
50
|
62
|
134
|
79
|
86
|
79
|
78
|
65
|
58
|
63
|
57
|
63
|
54
|
49
|
54
|
48
|
50
|
60
|
157
|
124
|
48
|
31
|
48
|
48
|
58
|
60
|
112
|
69
|
58
|
57
|
|
|
2026/03
|
26
|
51
|
93
|
73
|
62
|
43
|
49
|
73
|
96
|
124
|
92
|
94
|
148
|
73
|
52
|
76
|
76
|
71
|
73
|
86
|
83
|
106
|
84
|
67
|
84
|
82
|
72
|
72
|
58
|
55
|
48
|
|
2026/02
|
126
|
96
|
78
|
117
|
146
|
83
|
41
|
51
|
67
|
101
|
91
|
102
|
113
|
112
|
75
|
69
|
210
|
115
|
79
|
71
|
140
|
409
|
99
|
60
|
66
|
75
|
43
|
29
|
|||
|
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
|
|
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