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
19 Jul
Sun
20 Jul
Mon
21 Jul
Tue
22 Jul
Wed
23 Jul
Thu
24 Jul
Fri
25 Jul
Real-time AQI (Monitoring Station in Heyuan)
源西
143
PM2.5
11
PM10
43
O3
0.7
CO
3
SO2
7
NO2
东埔
1911
PM2.5
13
PM10
58
O3
0.4
CO
6
SO2
8
NO2
Air quality in the last 12 months (Heyuan)
|
2025/06
|
29
|
30
|
18
|
29
|
24
|
36
|
39
|
29
|
32
|
22
|
17
|
21
|
17
|
13
|
20
|
18
|
13
|
18
|
19
|
15
|
14
|
19
|
24
|
22
|
21
|
17
|
15
|
18
|
17
|
15
|
|
|
2025/05
|
40
|
43
|
52
|
48
|
40
|
26
|
25
|
32
|
27
|
28
|
29
|
32
|
38
|
33
|
25
|
22
|
27
|
40
|
27
|
23
|
25
|
30
|
26
|
22
|
50
|
54
|
45
|
33
|
18
|
17
|
28
|
|
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
|
|
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