Air Quality
Excellent
No health implications.
15
PM2.5
29
PM10
137
O3
0.5
CO
4
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Jul
67
Good
Tue
8 Jul
39
Excellent
Wed
9 Jul
37
Excellent
Thu
10 Jul
35
Excellent
Fri
11 Jul
45
Excellent
Sat
12 Jul
53
Good
Sun
13 Jul
49
Excellent
Air quality in the last 12 months (Hejiang)
|
2025/06
|
35
|
20
|
34
|
28
|
41
|
64
|
59
|
52
|
31
|
41
|
46
|
41
|
43
|
44
|
34
|
41
|
41
|
24
|
15
|
30
|
26
|
28
|
26
|
32
|
15
|
31
|
31
|
30
|
31
|
16
|
|
|
2025/05
|
39
|
61
|
91
|
63
|
40
|
46
|
33
|
34
|
46
|
62
|
46
|
53
|
69
|
61
|
63
|
63
|
55
|
62
|
51
|
61
|
35
|
28
|
52
|
59
|
45
|
41
|
35
|
16
|
23
|
30
|
28
|
|
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
|
|
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