Air Quality
Excellent
No health implications.
17
PM2.5
26
PM10
47
O3
1.0
CO
7
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
6 May
47
Excellent
Tue
7 May
41
Excellent
Wed
8 May
45
Excellent
Thu
9 May
39
Excellent
Fri
10 May
39
Excellent
Sat
11 May
46
Excellent
Sun
12 May
45
Excellent
Air quality in the last 12 months (Heshan)
|
2024/02
|
38
|
37
|
35
|
23
|
23
|
18
|
16
|
22
|
41
|
103
|
94
|
112
|
81
|
76
|
53
|
33
|
71
|
41
|
45
|
51
|
58
|
29
|
17
|
15
|
18
|
17
|
24
|
15
|
16
|
||
|
2024/01
|
147
|
65
|
27
|
64
|
123
|
86
|
67
|
56
|
33
|
40
|
49
|
31
|
43
|
61
|
65
|
59
|
71
|
75
|
77
|
20
|
21
|
17
|
44
|
49
|
45
|
59
|
52
|
47
|
31
|
23
|
30
|
|
2023/12
|
64
|
50
|
24
|
19
|
37
|
43
|
53
|
56
|
48
|
44
|
45
|
32
|
56
|
74
|
37
|
22
|
36
|
21
|
15
|
30
|
51
|
65
|
50
|
54
|
61
|
74
|
97
|
105
|
103
|
86
|
116
|
|
2023/11
|
48
|
52
|
58
|
41
|
36
|
25
|
27
|
44
|
43
|
43
|
26
|
15
|
11
|
23
|
31
|
23
|
44
|
45
|
55
|
62
|
68
|
70
|
68
|
71
|
77
|
79
|
56
|
58
|
73
|
84
|
|
|
2023/10
|
41
|
35
|
36
|
38
|
34
|
28
|
31
|
23
|
27
|
21
|
25
|
35
|
48
|
44
|
36
|
47
|
51
|
53
|
24
|
19
|
32
|
41
|
47
|
47
|
45
|
49
|
29
|
27
|
20
|
35
|
46
|
|
2023/09
|
38
|
36
|
24
|
21
|
30
|
39
|
29
|
26
|
22
|
21
|
15
|
18
|
14
|
18
|
23
|
29
|
29
|
27
|
24
|
25
|
27
|
35
|
38
|
46
|
42
|
38
|
41
|
30
|
35
|
38
|
|
|
2023/08
|
28
|
28
|
28
|
27
|
19
|
18
|
17
|
20
|
23
|
30
|
25
|
34
|
30
|
27
|
25
|
30
|
33
|
37
|
35
|
28
|
28
|
30
|
21
|
25
|
28
|
26
|
26
|
15
|
23
|
34
|
33
|
|
2023/07
|
33
|
32
|
25
|
24
|
22
|
19
|
24
|
25
|
25
|
28
|
25
|
27
|
29
|
34
|
37
|
40
|
55
|
26
|
23
|
27
|
28
|
29
|
28
|
33
|
36
|
43
|
48
|
42
|
44
|
35
|
24
|
|
2023/06
|
46
|
42
|
41
|
37
|
35
|
31
|
26
|
19
|
23
|
33
|
44
|
47
|
34
|
28
|
41
|
34
|
29
|
27
|
23
|
24
|
29
|
20
|
20
|
23
|
14
|
18
|
23
|
26
|
25
|
24
|
|
|
2023/05
|
73
|
40
|
32
|
31
|
43
|
52
|
20
|
23
|
41
|
34
|
17
|
29
|
43
|
50
|
53
|
38
|
44
|
54
|
50
|
47
|
53
|
44
|
30
|
33
|
39
|
30
|
26
|
27
|
33
|
48
|
63
|
|
2023/04
|
57
|
47
|
44
|
48
|
51
|
28
|
37
|
71
|
71
|
28
|
24
|
44
|
49
|
54
|
47
|
65
|
59
|
54
|
47
|
44
|
61
|
48
|
52
|
19
|
21
|
36
|
51
|
42
|
36
|
73
|
|
|
2023/03
|
80
|
86
|
92
|
62
|
75
|
87
|
83
|
74
|
85
|
60
|
55
|
87
|
90
|
87
|
77
|
58
|
49
|
39
|
36
|
48
|
46
|
62
|
68
|
33
|
21
|
34
|
30
|
45
|
34
|
41
|
54
|
|
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