Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
PM2.5
PM10
O3
CO
SO2
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
25 May
Mon
26 May
Tue
27 May
Wed
28 May
Thu
29 May
Fri
30 May
Sat
31 May
Real-time AQI (Monitoring Station in Zhangye)
监测站
6028
PM2.5
70 *
PM10
116
O3
0.4
CO
3
SO2
10
NO2
科委
6423
PM2.5
77 *
PM10
112
O3
0.4
CO
6
SO2
10
NO2
Air quality in the last 12 months (Zhangye)
|
2025/04
|
330
|
167
|
235
|
100
|
169
|
222
|
160
|
109
|
94
|
77
|
225
|
208
|
41
|
56
|
121
|
101
|
171
|
59
|
77
|
57
|
79
|
64
|
41
|
42
|
53
|
51
|
66
|
96
|
157
|
87
|
|
|
2025/03
|
74
|
53
|
72
|
68
|
53
|
281
|
219
|
112
|
439
|
193
|
285
|
109
|
72
|
52
|
40
|
54
|
70
|
78
|
90
|
96
|
94
|
98
|
134
|
189
|
386
|
159
|
52
|
64
|
64
|
65
|
253
|
|
2025/02
|
54
|
51
|
40
|
38
|
40
|
37
|
44
|
55
|
59
|
52
|
111
|
71
|
45
|
58
|
92
|
77
|
78
|
87
|
87
|
78
|
75
|
78
|
67
|
87
|
81
|
63
|
75
|
85
|
|||
|
2025/01
|
78
|
67
|
81
|
77
|
44
|
59
|
70
|
65
|
67
|
55
|
106
|
61
|
75
|
55
|
41
|
48
|
78
|
53
|
53
|
43
|
87
|
84
|
87
|
70
|
76
|
81
|
64
|
68
|
67
|
54
|
42
|
|
2024/12
|
46
|
58
|
61
|
67
|
55
|
48
|
57
|
63
|
74
|
69
|
73
|
72
|
56
|
54
|
49
|
55
|
62
|
64
|
68
|
74
|
66
|
102
|
89
|
62
|
62
|
48
|
46
|
77
|
129
|
69
|
102
|
|
2024/11
|
79
|
70
|
74
|
72
|
62
|
59
|
68
|
83
|
89
|
100
|
72
|
76
|
68
|
143
|
173
|
59
|
69
|
77
|
64
|
62
|
68
|
77
|
99
|
63
|
34
|
52
|
46
|
46
|
45
|
50
|
|
|
2024/10
|
36
|
38
|
47
|
53
|
49
|
37
|
51
|
71
|
63
|
59
|
62
|
55
|
56
|
71
|
72
|
70
|
63
|
111
|
219
|
101
|
40
|
36
|
46
|
60
|
54
|
63
|
46
|
60
|
65
|
71
|
71
|
|
2024/09
|
28
|
30
|
65
|
17
|
20
|
20
|
25
|
55
|
60
|
35
|
27
|
39
|
37
|
42
|
51
|
45
|
31
|
41
|
33
|
28
|
34
|
40
|
42
|
85
|
66
|
37
|
62
|
47
|
44
|
31
|
|
|
2024/08
|
42
|
18
|
22
|
26
|
35
|
36
|
28
|
166
|
133
|
24
|
24
|
43
|
48
|
51
|
31
|
28
|
26
|
27
|
29
|
39
|
33
|
45
|
47
|
122
|
89
|
77
|
51
|
68
|
51
|
100
|
65
|
|
2024/07
|
22
|
25
|
60
|
157
|
63
|
37
|
41
|
297
|
116
|
68
|
79
|
49
|
44
|
29
|
22
|
28
|
47
|
47
|
26
|
251
|
101
|
54
|
38
|
27
|
25
|
35
|
33
|
47
|
40
|
35
|
37
|
|
2024/06
|
53
|
50
|
51
|
37
|
70
|
41
|
49
|
37
|
28
|
33
|
37
|
33
|
159
|
40
|
55
|
56
|
86
|
194
|
45
|
21
|
35
|
37
|
38
|
49
|
106
|
66
|
67
|
41
|
84
|
21
|
|
|
2024/05
|
51
|
69
|
57
|
75
|
78
|
86
|
74
|
120
|
90
|
38
|
26
|
47
|
39
|
182
|
500
|
500
|
491
|
167
|
112
|
127
|
112
|
125
|
110
|
123
|
94
|
69
|
61
|
84
|
44
|
27
|
33
|
|
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
*: primary pollution