Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
29
PM2.5
64
*
PM10
143
O3
0.7
CO
10
SO2
20
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
18 May
96
Good
Sun
19 May
71
Good
Mon
20 May
62
Good
Tue
21 May
105
Lightly
Wed
22 May
94
Good
Thu
23 May
115
Lightly
Air quality in the last 12 months (Heishan)
|
2024/02
|
42
|
79
|
77
|
69
|
52
|
52
|
89
|
79
|
128
|
211
|
77
|
95
|
120
|
43
|
50
|
98
|
60
|
36
|
44
|
31
|
32
|
33
|
44
|
76
|
79
|
66
|
101
|
78
|
65
|
||
|
2024/01
|
96
|
142
|
89
|
71
|
48
|
46
|
31
|
51
|
40
|
76
|
67
|
52
|
49
|
40
|
67
|
97
|
79
|
32
|
46
|
47
|
29
|
25
|
44
|
46
|
68
|
58
|
66
|
93
|
59
|
136
|
45
|
|
2023/12
|
47
|
46
|
65
|
74
|
138
|
55
|
90
|
92
|
26
|
27
|
41
|
42
|
58
|
64
|
63
|
31
|
40
|
102
|
78
|
33
|
51
|
63
|
89
|
140
|
120
|
52
|
100
|
90
|
117
|
150
|
37
|
|
2023/11
|
43
|
100
|
29
|
75
|
116
|
61
|
47
|
66
|
33
|
23
|
33
|
41
|
53
|
75
|
102
|
44
|
30
|
47
|
43
|
55
|
80
|
72
|
24
|
26
|
57
|
55
|
71
|
36
|
35
|
38
|
|
|
2023/10
|
31
|
42
|
46
|
33
|
32
|
42
|
47
|
49
|
34
|
58
|
77
|
83
|
61
|
58
|
45
|
34
|
58
|
38
|
32
|
24
|
29
|
39
|
99
|
83
|
120
|
26
|
60
|
79
|
95
|
58
|
74
|
|
2023/09
|
36
|
41
|
42
|
55
|
44
|
39
|
57
|
55
|
52
|
49
|
38
|
26
|
45
|
54
|
47
|
46
|
55
|
42
|
25
|
30
|
41
|
31
|
35
|
47
|
28
|
36
|
59
|
31
|
50
|
33
|
|
|
2023/08
|
38
|
38
|
46
|
46
|
21
|
17
|
22
|
30
|
26
|
24
|
21
|
23
|
23
|
36
|
51
|
55
|
50
|
51
|
59
|
62
|
34
|
30
|
44
|
38
|
20
|
23
|
37
|
28
|
21
|
33
|
39
|
|
2023/07
|
43
|
61
|
32
|
35
|
50
|
72
|
52
|
34
|
33
|
43
|
45
|
83
|
47
|
34
|
28
|
20
|
31
|
49
|
72
|
79
|
72
|
40
|
27
|
43
|
43
|
48
|
34
|
30
|
18
|
23
|
40
|
|
2023/06
|
56
|
33
|
34
|
42
|
50
|
48
|
49
|
38
|
37
|
32
|
41
|
42
|
49
|
65
|
55
|
70
|
75
|
51
|
54
|
35
|
41
|
50
|
69
|
55
|
37
|
40
|
62
|
48
|
49
|
48
|
|
|
2023/05
|
44
|
89
|
60
|
46
|
66
|
38
|
43
|
54
|
37
|
52
|
64
|
71
|
48
|
58
|
60
|
70
|
41
|
48
|
73
|
249
|
122
|
66
|
53
|
88
|
79
|
62
|
50
|
54
|
41
|
46
|
61
|
|
2023/04
|
111
|
82
|
68
|
74
|
176
|
55
|
45
|
46
|
81
|
99
|
319
|
222
|
261
|
127
|
179
|
61
|
86
|
58
|
85
|
68
|
72
|
69
|
48
|
65
|
50
|
33
|
65
|
48
|
43
|
37
|
|
|
2023/03
|
48
|
67
|
106
|
179
|
141
|
113
|
130
|
54
|
105
|
136
|
45
|
36
|
67
|
109
|
86
|
42
|
55
|
78
|
95
|
115
|
102
|
304
|
230
|
43
|
56
|
53
|
88
|
95
|
114
|
116
|
123
|
|
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