Air Quality
Excellent
No health implications.
13
PM2.5
26
PM10
76
O3
0.7
CO
6
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 May
55
Good
Thu
28 May
54
Good
Fri
29 May
55
Good
Sat
30 May
54
Good
Sun
31 May
50
Excellent
Mon
1 Jun
53
Good
Tue
2 Jun
20
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