Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
57
*
PM2.5
85
PM10
32
O3
0.8
CO
6
SO2
46
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
21 May
87
Good
Thu
22 May
55
Good
Fri
23 May
69
Good
Sat
24 May
81
Good
Sun
25 May
94
Good
Mon
26 May
33
Excellent
Tue
27 May
44
Excellent
Air quality in the last 12 months (Hejiang)
|
2025/04
|
42
|
46
|
54
|
55
|
70
|
63
|
49
|
64
|
76
|
86
|
67
|
99
|
140
|
102
|
93
|
69
|
66
|
66
|
41
|
35
|
52
|
45
|
54
|
43
|
47
|
49
|
40
|
41
|
37
|
23
|
|
|
2025/03
|
114
|
113
|
41
|
50
|
23
|
19
|
38
|
52
|
71
|
67
|
67
|
73
|
70
|
56
|
33
|
27
|
17
|
26
|
32
|
43
|
60
|
90
|
88
|
56
|
66
|
74
|
86
|
85
|
30
|
27
|
43
|
|
2025/02
|
63
|
50
|
39
|
36
|
53
|
29
|
22
|
36
|
50
|
61
|
84
|
74
|
36
|
42
|
52
|
68
|
66
|
53
|
64
|
61
|
55
|
32
|
42
|
37
|
60
|
55
|
83
|
85
|
|||
|
2025/01
|
152
|
176
|
149
|
179
|
149
|
135
|
107
|
48
|
51
|
43
|
50
|
59
|
98
|
103
|
86
|
101
|
129
|
101
|
75
|
128
|
172
|
179
|
199
|
97
|
46
|
43
|
57
|
81
|
190
|
163
|
107
|
|
2024/12
|
131
|
157
|
99
|
109
|
53
|
45
|
40
|
34
|
41
|
58
|
71
|
51
|
47
|
50
|
56
|
83
|
112
|
121
|
98
|
106
|
141
|
83
|
59
|
99
|
109
|
96
|
122
|
120
|
116
|
83
|
86
|
|
2024/11
|
47
|
38
|
69
|
65
|
41
|
58
|
57
|
64
|
52
|
59
|
55
|
40
|
43
|
52
|
65
|
42
|
21
|
20
|
19
|
21
|
38
|
46
|
44
|
25
|
18
|
29
|
33
|
43
|
54
|
79
|
|
|
2024/10
|
15
|
22
|
29
|
35
|
48
|
57
|
57
|
50
|
58
|
86
|
60
|
27
|
35
|
40
|
54
|
73
|
26
|
45
|
44
|
23
|
33
|
23
|
33
|
72
|
79
|
64
|
35
|
48
|
72
|
83
|
80
|
|
2024/09
|
29
|
37
|
24
|
30
|
28
|
30
|
38
|
29
|
20
|
30
|
30
|
28
|
41
|
59
|
44
|
36
|
33
|
32
|
28
|
47
|
28
|
36
|
44
|
58
|
86
|
82
|
57
|
54
|
66
|
12
|
|
|
2024/08
|
38
|
21
|
20
|
17
|
31
|
24
|
26
|
22
|
30
|
25
|
50
|
71
|
60
|
49
|
43
|
30
|
42
|
54
|
50
|
52
|
49
|
40
|
25
|
23
|
18
|
25
|
43
|
36
|
30
|
34
|
43
|
|
2024/07
|
31
|
28
|
35
|
24
|
27
|
37
|
34
|
41
|
17
|
16
|
17
|
25
|
26
|
12
|
21
|
29
|
30
|
24
|
22
|
29
|
25
|
21
|
26
|
27
|
29
|
43
|
43
|
30
|
27
|
27
|
36
|
|
2024/06
|
54
|
32
|
36
|
26
|
34
|
39
|
24
|
25
|
35
|
26
|
34
|
31
|
53
|
58
|
52
|
52
|
33
|
47
|
35
|
34
|
23
|
26
|
34
|
33
|
35
|
42
|
14
|
22
|
22
|
38
|
|
|
2024/05
|
37
|
38
|
28
|
28
|
33
|
58
|
64
|
55
|
53
|
58
|
42
|
42
|
41
|
51
|
48
|
40
|
53
|
46
|
38
|
31
|
29
|
26
|
36
|
50
|
43
|
21
|
31
|
32
|
31
|
26
|
40
|
|
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