Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
61
O3
0.1
CO
3
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Jun
40
Excellent
Tue
24 Jun
49
Excellent
Wed
25 Jun
42
Excellent
Thu
26 Jun
39
Excellent
Fri
27 Jun
36
Excellent
Sat
28 Jun
47
Excellent
Sun
29 Jun
28
Excellent
Hecheng Air quality rank
Air quality in the last 12 months (Hecheng)
|
2025/05
|
43
|
61
|
56
|
48
|
40
|
51
|
58
|
36
|
22
|
32
|
36
|
56
|
58
|
60
|
54
|
32
|
48
|
38
|
42
|
31
|
25
|
26
|
38
|
51
|
52
|
33
|
29
|
14
|
30
|
28
|
21
|
|
2025/04
|
50
|
57
|
69
|
79
|
84
|
79
|
73
|
86
|
74
|
62
|
57
|
49
|
123
|
110
|
88
|
82
|
71
|
64
|
26
|
36
|
43
|
32
|
54
|
32
|
43
|
41
|
28
|
41
|
56
|
29
|
|
|
2025/03
|
37
|
30
|
14
|
21
|
24
|
33
|
26
|
38
|
46
|
42
|
33
|
38
|
46
|
25
|
19
|
44
|
42
|
37
|
41
|
45
|
54
|
63
|
69
|
65
|
70
|
76
|
90
|
78
|
45
|
21
|
42
|
|
2025/02
|
29
|
18
|
46
|
61
|
72
|
68
|
57
|
82
|
56
|
51
|
41
|
49
|
67
|
48
|
39
|
55
|
36
|
41
|
37
|
33
|
85
|
27
|
44
|
84
|
41
|
37
|
29
|
37
|
|||
|
2025/01
|
107
|
95
|
131
|
187
|
162
|
102
|
83
|
54
|
49
|
70
|
80
|
85
|
87
|
90
|
85
|
71
|
79
|
128
|
114
|
96
|
112
|
147
|
180
|
138
|
18
|
25
|
59
|
102
|
241
|
125
|
46
|
|
2024/12
|
60
|
59
|
87
|
84
|
23
|
36
|
37
|
54
|
61
|
23
|
39
|
64
|
69
|
54
|
60
|
63
|
76
|
72
|
75
|
75
|
87
|
73
|
57
|
76
|
85
|
82
|
84
|
125
|
127
|
106
|
89
|
|
2024/11
|
54
|
68
|
62
|
61
|
66
|
63
|
58
|
62
|
78
|
65
|
61
|
60
|
62
|
68
|
68
|
54
|
13
|
11
|
14
|
22
|
37
|
39
|
48
|
36
|
12
|
23
|
36
|
44
|
47
|
54
|
|
|
2024/10
|
17
|
47
|
64
|
55
|
61
|
62
|
43
|
44
|
46
|
57
|
62
|
74
|
63
|
32
|
42
|
34
|
39
|
30
|
18
|
14
|
20
|
15
|
35
|
59
|
53
|
49
|
54
|
54
|
62
|
59
|
59
|
|
2024/09
|
44
|
38
|
54
|
38
|
74
|
59
|
54
|
41
|
36
|
37
|
38
|
43
|
26
|
33
|
41
|
34
|
36
|
43
|
37
|
36
|
40
|
31
|
42
|
49
|
50
|
60
|
63
|
52
|
56
|
65
|
|
|
2024/08
|
12
|
16
|
15
|
22
|
24
|
23
|
27
|
25
|
26
|
26
|
18
|
47
|
43
|
49
|
49
|
42
|
45
|
44
|
28
|
36
|
35
|
21
|
18
|
16
|
21
|
22
|
26
|
29
|
41
|
42
|
52
|
|
2024/07
|
17
|
14
|
18
|
16
|
16
|
13
|
15
|
15
|
16
|
19
|
22
|
21
|
21
|
17
|
22
|
18
|
18
|
17
|
10
|
15
|
24
|
23
|
24
|
28
|
29
|
32
|
33
|
19
|
12
|
16
|
19
|
|
2024/06
|
38
|
28
|
29
|
13
|
16
|
28
|
30
|
13
|
13
|
16
|
17
|
21
|
22
|
23
|
32
|
35
|
18
|
11
|
19
|
26
|
23
|
19
|
16
|
16
|
16
|
19
|
11
|
19
|
13
|
14
|
|
|
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