Heilongjiang - China   2025-09-18   Thursday   50.25N, 127.50E

Aihui

Heilongjiang - China
2025-09-18

Air Quality

Excellent

No health implications.

13

PM2.5

20

PM10

29

O3

0.3

CO

6

SO2

19

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

18 Sep

54 Good

Fri

19 Sep

52 Good

Sat

20 Sep

48 Excellent

Sun

21 Sep

49 Excellent

Mon

22 Sep

53 Good

Tue

23 Sep

53 Good

Wed

24 Sep

50 Excellent

Aihui Air quality rank

Monthly Average AQI (Aihui)

2020/09 - 2025/08

Air quality in the last 12 months (Aihui)

2025/08
18
21
19
24
20
17
22
23
20
12
22
22
22
19
18
19
20
25
20
23
28
21
15
24
28
26
29
30
26
19
21
2025/07
19
16
19
24
27
24
22
22
22
27
27
23
26
25
28
27
26
24
22
18
18
19
23
28
21
25
22
24
18
17
16
2025/06
25
27
24
18
18
19
21
19
21
24
31
30
19
19
29
30
26
30
25
20
17
22
32
32
38
36
33
41
32
27
2025/05
28
24
20
20
17
25
30
38
43
40
73
105
71
31
48
26
28
17
16
19
18
23
22
25
25
25
28
46
52
57
35
2025/04
39
49
40
39
41
26
45
34
36
28
29
20
17
24
23
26
32
44
28
27
23
45
45
26
17
20
28
20
32
34
2025/03
25
22
24
43
56
38
30
36
36
59
30
27
23
23
21
23
23
23
24
34
18
20
20
18
19
23
25
18
19
21
30
2025/02
37
54
21
20
19
20
19
18
23
26
48
59
25
28
42
21
20
21
21
18
19
19
17
24
37
26
31
36
2025/01
55
69
48
34
39
23
27
23
23
28
34
82
72
26
32
28
48
48
43
38
45
43
47
70
86
45
26
28
30
23
25
2024/12
30
27
37
27
34
23
22
27
30
35
26
19
25
24
22
26
25
24
23
26
25
44
34
29
25
27
28
24
37
61
41
2024/11
25
24
28
21
22
24
48
152
141
68
22
24
33
50
28
26
22
24
35
41
31
24
29
99
75
26
29
25
23
24
2024/10
24
37
26
32
32
24
51
34
50
53
24
23
28
59
21
23
23
28
24
29
51
30
32
34
41
29
51
39
107
56
43
2024/09
24
24
24
22
20
21
30
23
37
37
21
26
19
21
26
29
28
24
20
20
21
30
28
30
26
29
30
33
21
22
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