Air Quality
Excellent
No health implications.
8
PM2.5
16
PM10
42
O3
1.0
CO
6
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 Sep
36
Excellent
Thu
11 Sep
31
Excellent
Fri
12 Sep
37
Excellent
Sat
13 Sep
35
Excellent
Sun
14 Sep
33
Excellent
Mon
15 Sep
34
Excellent
Tue
16 Sep
19
Excellent
Heqing Air quality rank
Air quality in the last 12 months (Heqing)
|
2025/08
|
21
|
16
|
14
|
16
|
16
|
22
|
18
|
18
|
13
|
17
|
16
|
12
|
15
|
23
|
26
|
20
|
15
|
17
|
27
|
16
|
12
|
9
|
12
|
10
|
12
|
21
|
22
|
18
|
11
|
15
|
17
|
|
2025/07
|
18
|
18
|
14
|
15
|
11
|
11
|
13
|
13
|
16
|
20
|
20
|
23
|
21
|
27
|
19
|
22
|
23
|
26
|
16
|
23
|
18
|
19
|
16
|
15
|
13
|
10
|
9
|
17
|
21
|
23
|
14
|
|
2025/06
|
10
|
21
|
12
|
30
|
27
|
19
|
16
|
23
|
21
|
19
|
26
|
25
|
34
|
26
|
15
|
18
|
10
|
10
|
11
|
14
|
14
|
11
|
13
|
17
|
13
|
11
|
14
|
20
|
17
|
16
|
|
|
2025/05
|
24
|
20
|
23
|
14
|
17
|
22
|
24
|
18
|
25
|
32
|
23
|
29
|
25
|
24
|
26
|
27
|
28
|
26
|
25
|
20
|
16
|
21
|
28
|
15
|
13
|
21
|
14
|
12
|
12
|
13
|
12
|
|
2025/04
|
71
|
63
|
57
|
48
|
47
|
41
|
46
|
49
|
47
|
42
|
34
|
33
|
21
|
32
|
36
|
21
|
26
|
31
|
22
|
22
|
22
|
23
|
35
|
39
|
44
|
44
|
46
|
49
|
34
|
38
|
|
|
2025/03
|
34
|
28
|
23
|
33
|
37
|
47
|
50
|
59
|
46
|
43
|
44
|
49
|
56
|
36
|
23
|
35
|
26
|
32
|
20
|
35
|
50
|
32
|
27
|
24
|
24
|
21
|
25
|
44
|
90
|
77
|
65
|
|
2025/02
|
31
|
36
|
51
|
44
|
33
|
36
|
39
|
31
|
32
|
28
|
28
|
29
|
35
|
38
|
24
|
34
|
29
|
39
|
25
|
24
|
26
|
30
|
39
|
32
|
34
|
20
|
17
|
29
|
|||
|
2025/01
|
33
|
37
|
46
|
43
|
38
|
30
|
27
|
29
|
27
|
26
|
31
|
30
|
27
|
29
|
37
|
52
|
40
|
21
|
27
|
36
|
55
|
42
|
30
|
19
|
24
|
32
|
29
|
45
|
68
|
29
|
26
|
|
2024/12
|
24
|
22
|
20
|
22
|
21
|
22
|
23
|
23
|
19
|
24
|
28
|
34
|
25
|
21
|
19
|
23
|
30
|
40
|
27
|
22
|
30
|
25
|
32
|
34
|
28
|
34
|
40
|
47
|
25
|
26
|
28
|
|
2024/11
|
30
|
35
|
27
|
29
|
21
|
27
|
15
|
12
|
17
|
24
|
26
|
20
|
25
|
27
|
29
|
33
|
37
|
33
|
26
|
27
|
20
|
26
|
22
|
20
|
24
|
27
|
27
|
30
|
28
|
25
|
|
|
2024/10
|
15
|
14
|
19
|
21
|
16
|
17
|
17
|
18
|
17
|
21
|
18
|
19
|
20
|
22
|
21
|
18
|
17
|
24
|
31
|
23
|
35
|
29
|
24
|
17
|
18
|
30
|
26
|
43
|
33
|
24
|
25
|
|
2024/09
|
18
|
19
|
20
|
17
|
15
|
20
|
27
|
27
|
21
|
14
|
18
|
17
|
23
|
26
|
23
|
23
|
20
|
21
|
26
|
26
|
29
|
26
|
25
|
29
|
28
|
21
|
21
|
16
|
16
|
19
|
|
|
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