Air Quality
Excellent
No health implications.
7
PM2.5
14
PM10
47
O3
0.5
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
1 Jun
49
Excellent
Tue
2 Jun
53
Good
Wed
3 Jun
48
Excellent
Thu
4 Jun
54
Good
Fri
5 Jun
52
Good
Sat
6 Jun
55
Good
Sun
7 Jun
22
Excellent
Air quality in the last 12 months (Heqing)
|
2026/04
|
27
|
29
|
28
|
27
|
31
|
31
|
29
|
27
|
32
|
33
|
34
|
40
|
37
|
42
|
41
|
35
|
36
|
38
|
38
|
31
|
31
|
31
|
31
|
39
|
46
|
42
|
35
|
28
|
27
|
25
|
|
|
2026/03
|
38
|
42
|
41
|
36
|
41
|
66
|
60
|
55
|
52
|
29
|
41
|
56
|
50
|
29
|
25
|
30
|
30
|
28
|
30
|
30
|
31
|
30
|
27
|
28
|
31
|
32
|
31
|
38
|
30
|
29
|
29
|
|
2026/02
|
24
|
20
|
18
|
18
|
20
|
24
|
26
|
25
|
22
|
22
|
23
|
21
|
22
|
21
|
29
|
36
|
40
|
36
|
46
|
37
|
29
|
45
|
31
|
33
|
33
|
34
|
31
|
38
|
|||
|
2026/01
|
30
|
23
|
19
|
17
|
19
|
25
|
25
|
26
|
26
|
26
|
27
|
23
|
27
|
29
|
31
|
25
|
33
|
32
|
28
|
20
|
23
|
30
|
32
|
28
|
24
|
28
|
25
|
26
|
25
|
26
|
26
|
|
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
|
|
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