Air Quality
Excellent
No health implications.
5
PM2.5
21
PM10
25
O3
0.5
CO
8
SO2
22
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Apr
53
Good
Tue
30 Apr
49
Excellent
Wed
1 May
75
Good
Thu
2 May
76
Good
Fri
3 May
59
Good
Sat
4 May
57
Good
Sun
5 May
57
Good
Air quality in the last 12 months (Tongguan)
|
2024/02
|
27
|
28
|
35
|
52
|
75
|
107
|
99
|
136
|
155
|
144
|
107
|
74
|
53
|
52
|
60
|
40
|
49
|
49
|
68
|
17
|
24
|
42
|
56
|
65
|
77
|
96
|
86
|
74
|
56
|
||
|
2024/01
|
175
|
134
|
103
|
80
|
69
|
130
|
155
|
87
|
126
|
196
|
131
|
84
|
92
|
157
|
69
|
61
|
61
|
29
|
25
|
72
|
92
|
55
|
32
|
48
|
63
|
82
|
92
|
85
|
104
|
114
|
71
|
|
2023/12
|
43
|
59
|
74
|
98
|
92
|
103
|
89
|
66
|
66
|
90
|
21
|
56
|
62
|
65
|
32
|
53
|
37
|
48
|
79
|
96
|
60
|
56
|
58
|
81
|
85
|
83
|
131
|
268
|
225
|
185
|
127
|
|
2023/11
|
63
|
54
|
62
|
128
|
112
|
39
|
46
|
55
|
54
|
45
|
41
|
60
|
74
|
68
|
75
|
100
|
101
|
59
|
68
|
61
|
60
|
58
|
93
|
61
|
58
|
77
|
99
|
83
|
94
|
55
|
|
|
2023/10
|
45
|
37
|
25
|
38
|
47
|
41
|
23
|
25
|
42
|
55
|
85
|
57
|
59
|
60
|
67
|
70
|
58
|
61
|
79
|
35
|
42
|
51
|
57
|
58
|
64
|
77
|
89
|
85
|
68
|
87
|
71
|
|
2023/09
|
38
|
45
|
54
|
45
|
37
|
36
|
36
|
44
|
46
|
53
|
72
|
48
|
19
|
22
|
37
|
34
|
43
|
44
|
41
|
25
|
23
|
19
|
18
|
44
|
56
|
52
|
65
|
68
|
67
|
36
|
|
|
2023/08
|
29
|
27
|
34
|
40
|
57
|
44
|
35
|
37
|
41
|
51
|
58
|
53
|
49
|
36
|
46
|
52
|
49
|
51
|
40
|
41
|
36
|
31
|
48
|
55
|
63
|
48
|
33
|
18
|
32
|
30
|
32
|
|
2023/07
|
46
|
38
|
28
|
28
|
33
|
31
|
37
|
32
|
22
|
30
|
31
|
31
|
35
|
46
|
47
|
40
|
39
|
43
|
34
|
25
|
30
|
23
|
28
|
35
|
38
|
31
|
31
|
17
|
14
|
16
|
20
|
|
2023/06
|
61
|
73
|
68
|
62
|
37
|
32
|
39
|
40
|
63
|
59
|
61
|
54
|
65
|
75
|
67
|
50
|
40
|
39
|
25
|
34
|
62
|
54
|
32
|
20
|
26
|
30
|
28
|
26
|
33
|
23
|
|
|
2023/05
|
71
|
55
|
48
|
39
|
30
|
52
|
44
|
38
|
50
|
54
|
48
|
56
|
60
|
66
|
54
|
54
|
31
|
40
|
33
|
61
|
104
|
129
|
86
|
48
|
49
|
53
|
23
|
52
|
49
|
55
|
52
|
|
2023/04
|
69
|
60
|
41
|
25
|
30
|
41
|
64
|
57
|
55
|
65
|
104
|
406
|
124
|
64
|
113
|
87
|
72
|
58
|
60
|
38
|
50
|
66
|
39
|
38
|
58
|
60
|
50
|
53
|
104
|
86
|
|
|
2023/03
|
94
|
96
|
83
|
89
|
80
|
64
|
62
|
71
|
79
|
71
|
59
|
107
|
73
|
68
|
83
|
114
|
30
|
46
|
57
|
53
|
29
|
24
|
40
|
132
|
50
|
77
|
92
|
82
|
67
|
52
|
45
|
|
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