Air Quality
Excellent
No health implications.
31
PM2.5
50
PM10
73
O3
0.7
CO
11
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
6 May
78
Good
Tue
7 May
72
Good
Wed
8 May
68
Good
Thu
9 May
65
Good
Fri
10 May
67
Good
Sat
11 May
72
Good
Sun
12 May
72
Good
Air quality in the last 12 months (Hejiang)
|
2024/02
|
119
|
101
|
58
|
35
|
38
|
53
|
57
|
61
|
95
|
152
|
118
|
119
|
120
|
135
|
44
|
48
|
66
|
89
|
94
|
155
|
85
|
16
|
19
|
26
|
41
|
49
|
49
|
77
|
89
|
||
|
2024/01
|
110
|
98
|
82
|
89
|
117
|
108
|
149
|
127
|
109
|
135
|
142
|
191
|
187
|
142
|
155
|
102
|
61
|
67
|
74
|
69
|
36
|
19
|
32
|
42
|
64
|
76
|
79
|
90
|
102
|
119
|
118
|
|
2023/12
|
25
|
33
|
58
|
69
|
76
|
84
|
98
|
117
|
123
|
136
|
131
|
48
|
53
|
88
|
58
|
52
|
55
|
61
|
71
|
78
|
83
|
101
|
96
|
103
|
123
|
146
|
157
|
200
|
174
|
133
|
198
|
|
2023/11
|
76
|
94
|
99
|
47
|
45
|
70
|
77
|
86
|
93
|
79
|
43
|
23
|
22
|
43
|
44
|
51
|
60
|
89
|
105
|
112
|
114
|
81
|
123
|
171
|
160
|
68
|
80
|
100
|
84
|
67
|
|
|
2023/10
|
43
|
39
|
40
|
29
|
22
|
12
|
22
|
38
|
27
|
30
|
39
|
31
|
29
|
35
|
54
|
83
|
88
|
79
|
24
|
33
|
46
|
55
|
79
|
104
|
64
|
46
|
23
|
32
|
44
|
49
|
68
|
|
2023/09
|
64
|
67
|
75
|
84
|
61
|
47
|
44
|
41
|
38
|
59
|
49
|
20
|
29
|
35
|
43
|
52
|
63
|
75
|
59
|
27
|
20
|
25
|
20
|
19
|
21
|
26
|
32
|
34
|
34
|
37
|
|
|
2023/08
|
28
|
28
|
23
|
32
|
35
|
33
|
26
|
28
|
29
|
34
|
40
|
32
|
36
|
45
|
40
|
47
|
58
|
54
|
51
|
53
|
38
|
44
|
54
|
35
|
29
|
19
|
27
|
34
|
45
|
35
|
45
|
|
2023/07
|
45
|
37
|
34
|
26
|
38
|
50
|
52
|
49
|
46
|
36
|
32
|
33
|
30
|
26
|
46
|
62
|
54
|
52
|
34
|
37
|
27
|
36
|
47
|
38
|
37
|
26
|
19
|
18
|
24
|
36
|
38
|
|
2023/06
|
25
|
30
|
19
|
28
|
23
|
44
|
59
|
51
|
50
|
46
|
46
|
35
|
45
|
48
|
41
|
36
|
42
|
47
|
50
|
57
|
31
|
28
|
41
|
44
|
45
|
48
|
38
|
36
|
32
|
40
|
|
|
2023/05
|
63
|
63
|
67
|
64
|
50
|
48
|
47
|
33
|
31
|
35
|
34
|
40
|
47
|
61
|
92
|
67
|
67
|
58
|
76
|
68
|
55
|
29
|
45
|
50
|
53
|
79
|
82
|
59
|
65
|
61
|
54
|
|
2023/04
|
58
|
66
|
53
|
33
|
38
|
42
|
52
|
55
|
66
|
73
|
64
|
53
|
66
|
66
|
57
|
67
|
78
|
43
|
47
|
46
|
62
|
20
|
18
|
23
|
36
|
49
|
51
|
53
|
55
|
61
|
|
|
2023/03
|
105
|
111
|
82
|
57
|
74
|
103
|
110
|
89
|
74
|
71
|
71
|
51
|
29
|
53
|
88
|
84
|
46
|
36
|
37
|
43
|
63
|
66
|
42
|
25
|
29
|
44
|
32
|
47
|
46
|
44
|
68
|
|
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