Air Quality
Excellent
No health implications.
15
PM2.5
23
PM10
80
O3
0.4
CO
5
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jul
49
Excellent
Mon
28 Jul
58
Good
Tue
29 Jul
58
Good
Wed
30 Jul
48
Excellent
Thu
31 Jul
57
Good
Fri
1 Aug
63
Good
Sat
2 Aug
28
Excellent
Air quality in the last 12 months (Tongshan)
|
2025/06
|
39
|
31
|
59
|
71
|
77
|
63
|
45
|
67
|
48
|
66
|
71
|
52
|
57
|
55
|
48
|
69
|
50
|
35
|
20
|
21
|
46
|
47
|
48
|
43
|
52
|
47
|
32
|
30
|
20
|
28
|
|
|
2025/05
|
60
|
72
|
42
|
48
|
46
|
85
|
74
|
54
|
19
|
28
|
47
|
51
|
53
|
56
|
85
|
83
|
99
|
64
|
75
|
62
|
59
|
67
|
65
|
57
|
51
|
53
|
60
|
56
|
60
|
62
|
65
|
|
2025/04
|
66
|
52
|
52
|
65
|
77
|
75
|
71
|
87
|
83
|
82
|
60
|
163
|
92
|
66
|
51
|
68
|
84
|
92
|
66
|
62
|
40
|
70
|
91
|
89
|
66
|
55
|
60
|
58
|
58
|
64
|
|
|
2025/03
|
116
|
35
|
43
|
63
|
73
|
74
|
75
|
87
|
87
|
79
|
103
|
147
|
90
|
56
|
67
|
48
|
56
|
51
|
62
|
66
|
58
|
64
|
84
|
155
|
98
|
87
|
116
|
165
|
60
|
57
|
68
|
|
2025/02
|
117
|
129
|
125
|
74
|
57
|
58
|
71
|
39
|
55
|
66
|
90
|
105
|
78
|
85
|
96
|
88
|
59
|
66
|
69
|
48
|
54
|
70
|
60
|
49
|
68
|
103
|
105
|
114
|
|||
|
2025/01
|
124
|
149
|
81
|
119
|
153
|
76
|
60
|
68
|
49
|
53
|
95
|
103
|
110
|
125
|
66
|
73
|
110
|
123
|
117
|
135
|
196
|
127
|
67
|
57
|
59
|
93
|
52
|
83
|
181
|
100
|
152
|
|
2024/12
|
92
|
95
|
50
|
92
|
128
|
136
|
129
|
48
|
61
|
94
|
103
|
63
|
88
|
78
|
72
|
86
|
124
|
57
|
56
|
92
|
75
|
58
|
81
|
105
|
129
|
129
|
83
|
73
|
70
|
102
|
117
|
|
2024/11
|
75
|
100
|
99
|
79
|
46
|
67
|
54
|
51
|
55
|
53
|
60
|
77
|
110
|
74
|
80
|
78
|
46
|
40
|
40
|
51
|
68
|
65
|
49
|
47
|
39
|
48
|
63
|
58
|
57
|
78
|
|
|
2024/10
|
33
|
31
|
45
|
46
|
41
|
34
|
25
|
45
|
55
|
81
|
88
|
93
|
68
|
101
|
108
|
101
|
36
|
26
|
39
|
40
|
53
|
62
|
54
|
67
|
73
|
56
|
120
|
65
|
77
|
91
|
80
|
|
2024/09
|
44
|
37
|
34
|
39
|
54
|
34
|
38
|
29
|
33
|
41
|
48
|
38
|
50
|
78
|
36
|
46
|
21
|
21
|
25
|
29
|
29
|
34
|
37
|
42
|
44
|
59
|
66
|
36
|
41
|
38
|
|
|
2024/08
|
26
|
25
|
29
|
30
|
29
|
16
|
31
|
16
|
42
|
59
|
113
|
48
|
43
|
54
|
34
|
36
|
32
|
33
|
30
|
34
|
42
|
45
|
49
|
49
|
56
|
41
|
15
|
29
|
35
|
36
|
38
|
|
2024/07
|
47
|
54
|
39
|
17
|
26
|
16
|
31
|
30
|
23
|
73
|
78
|
75
|
51
|
20
|
32
|
41
|
18
|
16
|
36
|
21
|
27
|
35
|
34
|
59
|
34
|
24
|
18
|
20
|
19
|
23
|
28
|
|
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