Air Quality
Excellent
No health implications.
14
PM2.5
23
PM10
86
O3
0.5
CO
8
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
30 Jan
34
Excellent
Sat
31 Jan
31
Excellent
Sun
1 Feb
33
Excellent
Mon
2 Feb
33
Excellent
Tue
3 Feb
36
Excellent
Wed
4 Feb
36
Excellent
Thu
5 Feb
17
Excellent
Air quality in the last 12 months (Heqing)
|
2025/12
|
35
|
32
|
34
|
22
|
24
|
24
|
26
|
30
|
27
|
26
|
26
|
25
|
31
|
31
|
24
|
24
|
32
|
28
|
25
|
26
|
33
|
28
|
31
|
26
|
28
|
28
|
26
|
22
|
23
|
22
|
24
|
|
2025/11
|
15
|
14
|
9
|
12
|
20
|
13
|
13
|
19
|
23
|
18
|
20
|
23
|
24
|
25
|
25
|
29
|
26
|
28
|
24
|
20
|
21
|
20
|
19
|
21
|
26
|
33
|
29
|
29
|
28
|
27
|
|
|
2025/10
|
10
|
11
|
12
|
13
|
14
|
13
|
16
|
10
|
12
|
15
|
12
|
11
|
12
|
16
|
18
|
23
|
14
|
12
|
13
|
12
|
15
|
22
|
24
|
23
|
16
|
14
|
17
|
19
|
17
|
18
|
20
|
|
2025/09
|
20
|
13
|
15
|
13
|
16
|
14
|
18
|
16
|
18
|
20
|
15
|
16
|
12
|
15
|
21
|
15
|
14
|
17
|
15
|
15
|
14
|
14
|
14
|
15
|
24
|
21
|
11
|
14
|
14
|
9
|
|
|
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
|
|
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