Air Quality
Excellent
No health implications.
13
PM2.5
27
PM10
59
O3
0.3
CO
6
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Jul
46
Excellent
Sat
25 Jul
46
Excellent
Sun
26 Jul
54
Good
Mon
27 Jul
47
Excellent
Tue
28 Jul
41
Excellent
Wed
29 Jul
48
Excellent
Thu
30 Jul
41
Excellent
Air quality in the last 12 months (Hecheng)
|
2026/06
|
34
|
41
|
36
|
31
|
39
|
40
|
27
|
29
|
26
|
28
|
32
|
30
|
20
|
24
|
32
|
36
|
41
|
40
|
16
|
17
|
17
|
21
|
19
|
19
|
21
|
30
|
38
|
40
|
40
|
23
|
|
|
2026/05
|
39
|
36
|
28
|
36
|
38
|
45
|
40
|
32
|
33
|
41
|
54
|
48
|
19
|
29
|
39
|
62
|
37
|
18
|
18
|
21
|
27
|
29
|
40
|
37
|
28
|
30
|
22
|
27
|
25
|
34
|
38
|
|
2026/04
|
35
|
34
|
23
|
45
|
66
|
30
|
44
|
63
|
71
|
47
|
25
|
29
|
30
|
24
|
18
|
19
|
29
|
39
|
48
|
29
|
21
|
16
|
23
|
30
|
46
|
54
|
33
|
22
|
28
|
34
|
|
|
2026/03
|
10
|
17
|
29
|
36
|
37
|
53
|
52
|
16
|
27
|
64
|
38
|
59
|
66
|
61
|
50
|
16
|
14
|
21
|
40
|
32
|
36
|
21
|
23
|
23
|
29
|
24
|
21
|
32
|
36
|
20
|
29
|
|
2026/02
|
61
|
80
|
77
|
94
|
91
|
93
|
94
|
67
|
49
|
41
|
53
|
75
|
67
|
55
|
60
|
22
|
47
|
64
|
48
|
43
|
58
|
55
|
31
|
46
|
59
|
19
|
17
|
19
|
|||
|
2026/01
|
29
|
48
|
46
|
35
|
49
|
51
|
61
|
75
|
78
|
121
|
114
|
117
|
108
|
96
|
121
|
152
|
136
|
144
|
52
|
30
|
44
|
62
|
75
|
87
|
65
|
35
|
73
|
88
|
69
|
17
|
50
|
|
2025/12
|
67
|
94
|
71
|
62
|
59
|
62
|
65
|
70
|
78
|
94
|
93
|
140
|
36
|
51
|
60
|
67
|
67
|
88
|
76
|
65
|
45
|
50
|
35
|
41
|
64
|
61
|
61
|
72
|
91
|
103
|
90
|
|
2025/11
|
38
|
25
|
17
|
24
|
29
|
21
|
16
|
10
|
10
|
12
|
41
|
47
|
44
|
47
|
55
|
61
|
49
|
25
|
37
|
45
|
41
|
49
|
45
|
44
|
56
|
56
|
68
|
65
|
59
|
63
|
|
|
2025/10
|
47
|
29
|
30
|
29
|
37
|
22
|
28
|
46
|
36
|
36
|
39
|
57
|
35
|
25
|
35
|
22
|
22
|
11
|
9
|
8
|
11
|
29
|
41
|
40
|
51
|
37
|
31
|
49
|
56
|
52
|
38
|
|
2025/09
|
30
|
28
|
28
|
24
|
43
|
46
|
37
|
39
|
17
|
21
|
21
|
19
|
21
|
26
|
30
|
26
|
24
|
23
|
22
|
16
|
35
|
25
|
20
|
17
|
20
|
14
|
25
|
41
|
32
|
21
|
|
|
2025/08
|
31
|
39
|
36
|
31
|
33
|
24
|
15
|
21
|
23
|
23
|
33
|
26
|
19
|
17
|
14
|
19
|
32
|
34
|
23
|
25
|
17
|
19
|
24
|
27
|
23
|
25
|
27
|
26
|
37
|
37
|
31
|
|
2025/07
|
20
|
16
|
18
|
21
|
25
|
33
|
37
|
36
|
42
|
31
|
31
|
41
|
39
|
29
|
23
|
27
|
27
|
31
|
35
|
37
|
11
|
12
|
12
|
24
|
21
|
35
|
33
|
30
|
35
|
34
|
31
|
|
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