Air Quality
Excellent
No health implications.
18
PM2.5
25
PM10
146
O3
0.6
CO
5
SO2
21
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Sep
104
Lightly
Wed
27 Sep
99
Good
Thu
28 Sep
84
Good
Fri
29 Sep
56
Good
Sat
30 Sep
55
Good
Sun
1 Oct
51
Good
Mon
2 Oct
56
Good
Air quality in the last 12 months (Heshan)
|
2023/08
|
21
|
30
|
45
|
18
|
19
|
21
|
23
|
20
|
23
|
27
|
34
|
20
|
21
|
25
|
22
|
25
|
36
|
45
|
36
|
24
|
19
|
21
|
19
|
20
|
26
|
30
|
21
|
22
|
20
|
26
|
28
|
|
2023/07
|
16
|
17
|
16
|
20
|
20
|
16
|
16
|
16
|
14
|
15
|
15
|
17
|
21
|
29
|
52
|
27
|
18
|
23
|
24
|
19
|
22
|
22
|
23
|
22
|
19
|
47
|
35
|
28
|
27
|
20
|
20
|
|
2023/06
|
40
|
41
|
33
|
22
|
23
|
26
|
22
|
19
|
28
|
39
|
48
|
55
|
39
|
30
|
48
|
31
|
16
|
19
|
16
|
22
|
19
|
18
|
19
|
19
|
17
|
26
|
37
|
21
|
23
|
19
|
|
|
2023/05
|
50
|
43
|
30
|
25
|
22
|
23
|
23
|
32
|
50
|
43
|
49
|
21
|
33
|
42
|
47
|
31
|
26
|
43
|
48
|
38
|
28
|
30
|
34
|
38
|
48
|
28
|
32
|
41
|
41
|
47
|
66
|
|
2023/04
|
37
|
34
|
29
|
24
|
23
|
33
|
29
|
65
|
67
|
54
|
40
|
44
|
46
|
52
|
51
|
60
|
45
|
38
|
33
|
75
|
26
|
41
|
36
|
34
|
20
|
31
|
48
|
36
|
29
|
48
|
|
|
2023/03
|
90
|
70
|
75
|
76
|
81
|
63
|
52
|
45
|
60
|
58
|
50
|
50
|
87
|
78
|
53
|
59
|
52
|
53
|
38
|
32
|
29
|
38
|
35
|
33
|
35
|
15
|
18
|
32
|
20
|
20
|
19
|
|
2023/02
|
46
|
38
|
45
|
50
|
44
|
54
|
62
|
28
|
31
|
46
|
24
|
23
|
21
|
15
|
27
|
44
|
71
|
88
|
64
|
48
|
73
|
62
|
71
|
71
|
40
|
45
|
70
|
55
|
|||
|
2023/01
|
40
|
44
|
47
|
49
|
55
|
50
|
56
|
57
|
29
|
16
|
17
|
35
|
22
|
21
|
15
|
14
|
33
|
37
|
44
|
46
|
55
|
64
|
71
|
43
|
63
|
58
|
47
|
58
|
52
|
52
|
50
|
|
2022/12
|
17
|
18
|
35
|
31
|
20
|
30
|
36
|
42
|
41
|
44
|
49
|
72
|
70
|
47
|
40
|
29
|
58
|
38
|
41
|
58
|
40
|
53
|
55
|
50
|
48
|
63
|
63
|
69
|
70
|
48
|
37
|
|
2022/11
|
46
|
30
|
14
|
12
|
20
|
24
|
31
|
24
|
36
|
51
|
63
|
55
|
78
|
55
|
77
|
62
|
39
|
64
|
53
|
44
|
53
|
29
|
17
|
16
|
27
|
22
|
30
|
20
|
20
|
19
|
|
|
2022/10
|
18
|
21
|
21
|
36
|
37
|
44
|
46
|
51
|
46
|
34
|
41
|
55
|
60
|
63
|
64
|
61
|
56
|
65
|
52
|
70
|
91
|
71
|
72
|
79
|
65
|
61
|
73
|
69
|
45
|
31
|
46
|
|
2022/09
|
35
|
36
|
41
|
47
|
63
|
77
|
43
|
41
|
48
|
50
|
54
|
67
|
72
|
72
|
76
|
76
|
75
|
58
|
69
|
62
|
60
|
63
|
72
|
69
|
75
|
81
|
51
|
39
|
24
|
16
|
|
|
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