Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
31 May
Sun
1 Jun
Mon
2 Jun
Tue
3 Jun
Wed
4 Jun
Thu
5 Jun
Fri
6 Jun
Real-time AQI (Monitoring Station in Heyuan)
源西
3411
PM2.5
34
PM10
12
O3
0.8
CO
3
SO2
20
NO2
东埔
2414
PM2.5
24
PM10
1
O3
1.1
CO
3
SO2
30
NO2
老城
3524
PM2.5
28
PM10
3
O3
0.7
CO
4
SO2
26
NO2
Air quality in the last 12 months (Heyuan)
|
2025/04
|
25
|
37
|
45
|
53
|
27
|
47
|
55
|
61
|
60
|
49
|
50
|
61
|
192
|
116
|
86
|
88
|
66
|
56
|
36
|
45
|
38
|
41
|
42
|
34
|
16
|
22
|
48
|
35
|
41
|
55
|
|
|
2025/03
|
33
|
35
|
39
|
29
|
12
|
12
|
22
|
33
|
32
|
43
|
35
|
30
|
29
|
30
|
21
|
16
|
47
|
39
|
34
|
39
|
46
|
54
|
58
|
63
|
70
|
55
|
39
|
48
|
12
|
8
|
8
|
|
2025/02
|
51
|
36
|
11
|
31
|
36
|
33
|
22
|
58
|
30
|
38
|
47
|
43
|
41
|
44
|
61
|
60
|
35
|
32
|
40
|
46
|
20
|
27
|
13
|
25
|
34
|
49
|
51
|
44
|
|||
|
2025/01
|
68
|
60
|
56
|
57
|
62
|
82
|
73
|
68
|
57
|
39
|
39
|
40
|
46
|
52
|
50
|
60
|
45
|
44
|
49
|
48
|
49
|
46
|
43
|
53
|
35
|
18
|
26
|
50
|
89
|
67
|
56
|
|
2024/12
|
42
|
45
|
44
|
43
|
62
|
76
|
48
|
41
|
65
|
45
|
47
|
24
|
38
|
74
|
42
|
42
|
43
|
41
|
61
|
67
|
51
|
63
|
75
|
67
|
68
|
72
|
72
|
83
|
73
|
75
|
62
|
|
2024/11
|
25
|
21
|
36
|
39
|
43
|
54
|
39
|
35
|
42
|
54
|
44
|
42
|
44
|
28
|
24
|
16
|
25
|
21
|
21
|
23
|
29
|
29
|
33
|
46
|
30
|
18
|
30
|
32
|
33
|
40
|
|
|
2024/10
|
31
|
28
|
34
|
32
|
32
|
36
|
39
|
50
|
37
|
32
|
41
|
51
|
58
|
48
|
49
|
41
|
42
|
34
|
37
|
34
|
29
|
39
|
26
|
33
|
40
|
46
|
35
|
15
|
24
|
40
|
38
|
|
2024/09
|
25
|
31
|
26
|
23
|
22
|
14
|
14
|
15
|
15
|
21
|
37
|
34
|
27
|
24
|
18
|
22
|
22
|
20
|
23
|
24
|
16
|
14
|
15
|
16
|
27
|
35
|
26
|
27
|
25
|
23
|
|
|
2024/08
|
25
|
30
|
34
|
43
|
28
|
41
|
36
|
47
|
44
|
34
|
36
|
36
|
16
|
21
|
21
|
25
|
22
|
15
|
20
|
27
|
17
|
23
|
30
|
25
|
23
|
27
|
44
|
38
|
30
|
29
|
22
|
|
2024/07
|
22
|
22
|
22
|
22
|
23
|
20
|
21
|
27
|
30
|
28
|
22
|
16
|
18
|
22
|
18
|
20
|
16
|
18
|
19
|
20
|
22
|
21
|
28
|
43
|
35
|
25
|
19
|
11
|
13
|
16
|
14
|
|
2024/06
|
15
|
13
|
28
|
13
|
17
|
14
|
22
|
16
|
17
|
23
|
23
|
32
|
34
|
35
|
35
|
26
|
37
|
28
|
25
|
22
|
24
|
39
|
27
|
19
|
20
|
21
|
20
|
22
|
20
|
22
|
|
|
2024/05
|
19
|
27
|
32
|
31
|
22
|
41
|
33
|
34
|
43
|
49
|
40
|
25
|
38
|
47
|
41
|
43
|
55
|
36
|
33
|
16
|
11
|
15
|
18
|
14
|
18
|
30
|
31
|
22
|
19
|
31
|
25
|
|
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
*: primary pollution