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HistoryAQIPM2.5PM10COSO2NO2O3

Ostandary, Arak, Markazi, Iran Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

August Air Quality Analysis

Ostandary, Arak, Markazi, Iran

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
8th Aug 2023
174AQI
Lowest AQI recorded on
26th Aug 2021
0AQI

Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 85 of Moderate air quality, showing improvement over 2023 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 1st Aug - 2nd Aug 2025

Ostandary, Arak, Markazi, Iran

AQI
Day
Night
.

6 AM1st Aug 2025

8 PM

5 AM2nd Aug 2025

Day time
Avg. Highest Time
8AM1st Aug

98AQI

Avg. Lowest Time
10AM1st Aug

75AQI

Night time
Avg. Highest Time
4AM2nd Aug

88AQI

Avg. Lowest Time
2AM2nd Aug

78AQI

In the last 24 hours,

Ostandary's AQI reached its highest point of 98 at 8 AM during the Day, while the lowest point, 75, was recorded at 10 AM during the Day between 1st Aug and 2nd Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Ostandary, Arak, Markazi, Iran

JulAug
03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd
Day
Night
3rd Jul 2025866 AMAQI
3rd Jul 2025867 AMAQI
3rd Jul 2025868 AMAQI
3rd Jul 2025869 AMAQI
3rd Jul 20258610 AMAQI
3rd Jul 20258611 AMAQI
3rd Jul 20259012 PMAQI
3rd Jul 2025901 PMAQI
3rd Jul 2025762 PMAQI
3rd Jul 2025883 PMAQI
3rd Jul 2025964 PMAQI
3rd Jul 2025985 PMAQI
3rd Jul 20251076 PMAQI
3rd Jul 20251047 PMAQI
3rd Jul 2025978 PMAQI
3rd Jul 20251009 PMAQI
3rd Jul 202510410 PMAQI
3rd Jul 202511311 PMAQI
4th Jul 202510612 AMAQI
4th Jul 20251031 AMAQI
4th Jul 2025952 AMAQI
4th Jul 20251003 AMAQI
4th Jul 2025934 AMAQI
4th Jul 2025925 AMAQI

28°C20/37°C

4th Jul 2025906 AMAQI
4th Jul 2025977 AMAQI
4th Jul 2025978 AMAQI
4th Jul 2025959 AMAQI
4th Jul 202510810 AMAQI
4th Jul 202511011 AMAQI
4th Jul 20259612 PMAQI
4th Jul 2025931 PMAQI
4th Jul 2025902 PMAQI
4th Jul 2025913 PMAQI
4th Jul 2025974 PMAQI
4th Jul 20251015 PMAQI
4th Jul 2025926 PMAQI
4th Jul 2025937 PMAQI
4th Jul 20251208 PMAQI
4th Jul 20251059 PMAQI
4th Jul 202511210 PMAQI
4th Jul 202512411 PMAQI
5th Jul 202511812 AMAQI
5th Jul 2025991 AMAQI
5th Jul 20251062 AMAQI
5th Jul 20251063 AMAQI
5th Jul 2025884 AMAQI
5th Jul 2025865 AMAQI

28°C22/36°C

5th Jul 2025926 AMAQI
5th Jul 2025927 AMAQI
5th Jul 20251078 AMAQI
5th Jul 2025909 AMAQI
5th Jul 20259510 AMAQI
5th Jul 202510011 AMAQI
5th Jul 202510412 PMAQI
5th Jul 20251191 PMAQI
5th Jul 20251022 PMAQI
5th Jul 20251023 PMAQI
5th Jul 20251164 PMAQI
5th Jul 20251045 PMAQI
5th Jul 20251116 PMAQI
5th Jul 20251217 PMAQI
5th Jul 2025988 PMAQI
5th Jul 20251279 PMAQI
5th Jul 202513410 PMAQI
5th Jul 202512311 PMAQI
6th Jul 202512612 AMAQI
6th Jul 20251221 AMAQI
6th Jul 20251202 AMAQI
6th Jul 20251223 AMAQI
6th Jul 20251104 AMAQI
6th Jul 20251085 AMAQI

28°C22/36°C

6th Jul 20251276 AMAQI
6th Jul 20251367 AMAQI
6th Jul 20251308 AMAQI
6th Jul 20251109 AMAQI
6th Jul 202511610 AMAQI
6th Jul 202514811 AMAQI
6th Jul 202512312 PMAQI
6th Jul 20251241 PMAQI
6th Jul 20251262 PMAQI
6th Jul 20251143 PMAQI
6th Jul 20251224 PMAQI
6th Jul 20251255 PMAQI
6th Jul 20251186 PMAQI
6th Jul 20251147 PMAQI
6th Jul 20251238 PMAQI
6th Jul 20251149 PMAQI
6th Jul 202511710 PMAQI
6th Jul 202512211 PMAQI
7th Jul 202512212 AMAQI
7th Jul 20251111 AMAQI
7th Jul 20251182 AMAQI
7th Jul 20251183 AMAQI
7th Jul 20251124 AMAQI
7th Jul 20251055 AMAQI

27°C21/34°C

7th Jul 20251086 AMAQI
7th Jul 20251027 AMAQI
7th Jul 20251198 AMAQI
7th Jul 20251189 AMAQI
7th Jul 202511910 AMAQI
7th Jul 202510311 AMAQI
7th Jul 202511012 PMAQI
7th Jul 20251261 PMAQI
7th Jul 20251182 PMAQI
7th Jul 20251063 PMAQI
7th Jul 20251104 PMAQI
7th Jul 20251035 PMAQI
7th Jul 20251036 PMAQI
7th Jul 20251087 PMAQI
7th Jul 20251068 PMAQI
7th Jul 20251029 PMAQI
7th Jul 202510310 PMAQI
7th Jul 202510911 PMAQI
8th Jul 202511012 AMAQI
8th Jul 20251081 AMAQI
8th Jul 20251212 AMAQI
8th Jul 20251163 AMAQI
8th Jul 20251324 AMAQI
8th Jul 20251145 AMAQI

24°C19/30°C

8th Jul 20251096 AMAQI
8th Jul 20251167 AMAQI
8th Jul 20251108 AMAQI
8th Jul 20251169 AMAQI
8th Jul 202511010 AMAQI
8th Jul 202511411 AMAQI
8th Jul 202511812 PMAQI
8th Jul 2025911 PMAQI
8th Jul 2025932 PMAQI
8th Jul 20251093 PMAQI
8th Jul 20251084 PMAQI
8th Jul 20251155 PMAQI
8th Jul 20251226 PMAQI
8th Jul 20251007 PMAQI
8th Jul 20251068 PMAQI
8th Jul 20251179 PMAQI
8th Jul 202511210 PMAQI
8th Jul 202510311 PMAQI
9th Jul 202511612 AMAQI
9th Jul 20251021 AMAQI
9th Jul 20251162 AMAQI
9th Jul 20251123 AMAQI
9th Jul 2025634 AMAQI
9th Jul 2025865 AMAQI

25°C18/31°C

9th Jul 2025946 AMAQI
9th Jul 2025987 AMAQI
9th Jul 20251148 AMAQI
9th Jul 20251089 AMAQI
9th Jul 202511010 AMAQI
9th Jul 202510011 AMAQI
9th Jul 202510812 PMAQI
9th Jul 20251091 PMAQI
9th Jul 20251152 PMAQI
9th Jul 20251013 PMAQI
9th Jul 2025984 PMAQI
9th Jul 2025965 PMAQI
9th Jul 2025986 PMAQI
9th Jul 2025967 PMAQI
9th Jul 2025978 PMAQI
9th Jul 2025989 PMAQI
9th Jul 20259710 PMAQI
9th Jul 20259411 PMAQI
10th Jul 20259512 AMAQI
10th Jul 2025961 AMAQI
10th Jul 2025952 AMAQI
10th Jul 2025963 AMAQI
10th Jul 20251004 AMAQI
10th Jul 20251085 AMAQI

25°C16/31°C

10th Jul 20251056 AMAQI
10th Jul 20251037 AMAQI
10th Jul 20251088 AMAQI
10th Jul 20251109 AMAQI
10th Jul 202511410 AMAQI
10th Jul 202511311 AMAQI
10th Jul 202511612 PMAQI
10th Jul 20251091 PMAQI
10th Jul 20251042 PMAQI
10th Jul 20251023 PMAQI
10th Jul 2025994 PMAQI
10th Jul 20251105 PMAQI
10th Jul 20251016 PMAQI
10th Jul 20251027 PMAQI
10th Jul 2025948 PMAQI
10th Jul 2025909 PMAQI
10th Jul 202510210 PMAQI
10th Jul 202510211 PMAQI
11th Jul 20259812 AMAQI
11th Jul 20251001 AMAQI
11th Jul 20251062 AMAQI
11th Jul 20251103 AMAQI
11th Jul 20251524 AMAQI
11th Jul 20251375 AMAQI

27°C20/34°C

11th Jul 20251306 AMAQI
11th Jul 20251277 AMAQI
11th Jul 20251248 AMAQI
11th Jul 20251409 AMAQI
11th Jul 202511810 AMAQI
11th Jul 202511011 AMAQI
11th Jul 202510812 PMAQI
11th Jul 20251191 PMAQI
11th Jul 20251102 PMAQI
11th Jul 20251123 PMAQI
11th Jul 20251134 PMAQI
11th Jul 20251125 PMAQI
11th Jul 20251116 PMAQI
11th Jul 20251117 PMAQI
11th Jul 20251208 PMAQI
11th Jul 20251129 PMAQI
11th Jul 202511310 PMAQI
11th Jul 202511611 PMAQI
12th Jul 202511412 AMAQI
12th Jul 20251161 AMAQI
12th Jul 20251222 AMAQI
12th Jul 20251223 AMAQI
12th Jul 20251214 AMAQI
12th Jul 20251035 AMAQI

27°C21/33°C

12th Jul 20251156 AMAQI
12th Jul 20251107 AMAQI
12th Jul 20251078 AMAQI
12th Jul 20251169 AMAQI
12th Jul 202511910 AMAQI
12th Jul 202511611 AMAQI
12th Jul 202511112 PMAQI
12th Jul 20251101 PMAQI
12th Jul 20251132 PMAQI
12th Jul 20251133 PMAQI
12th Jul 20251214 PMAQI
12th Jul 20251205 PMAQI
12th Jul 20251106 PMAQI
12th Jul 20251067 PMAQI
12th Jul 20251128 PMAQI
12th Jul 20251129 PMAQI
12th Jul 202511010 PMAQI
12th Jul 202511211 PMAQI
13th Jul 202511212 AMAQI
13th Jul 20251101 AMAQI
13th Jul 20251082 AMAQI
13th Jul 20251143 AMAQI
13th Jul 20251144 AMAQI
13th Jul 2025965 AMAQI

28°C22/34°C

13th Jul 2025996 AMAQI
13th Jul 20251107 AMAQI
13th Jul 20251058 AMAQI
13th Jul 20251219 AMAQI
13th Jul 20259710 AMAQI
13th Jul 202510011 AMAQI
13th Jul 202510012 PMAQI
13th Jul 2025961 PMAQI
13th Jul 2025942 PMAQI
13th Jul 20251043 PMAQI
13th Jul 2025984 PMAQI
13th Jul 20251025 PMAQI
13th Jul 2025986 PMAQI
13th Jul 20251037 PMAQI
13th Jul 20251048 PMAQI
13th Jul 20251009 PMAQI
13th Jul 202510010 PMAQI
13th Jul 202510611 PMAQI
14th Jul 202511012 AMAQI
14th Jul 20251091 AMAQI
14th Jul 20251102 AMAQI
14th Jul 20251153 AMAQI
14th Jul 2025834 AMAQI
14th Jul 2025885 AMAQI

26°C21/33°C

14th Jul 20251026 AMAQI
14th Jul 2025907 AMAQI
14th Jul 2025998 AMAQI
14th Jul 2025909 AMAQI
14th Jul 20259510 AMAQI
14th Jul 20259611 AMAQI
14th Jul 20259912 PMAQI
14th Jul 20251001 PMAQI
14th Jul 20251082 PMAQI
14th Jul 2025943 PMAQI
14th Jul 2025934 PMAQI
14th Jul 2025965 PMAQI
14th Jul 2025976 PMAQI
14th Jul 2025987 PMAQI
14th Jul 20251028 PMAQI
14th Jul 2025949 PMAQI
14th Jul 20258810 PMAQI
14th Jul 20259911 PMAQI
15th Jul 20259812 AMAQI
15th Jul 20251001 AMAQI
15th Jul 2025942 AMAQI
15th Jul 2025983 AMAQI
15th Jul 2025924 AMAQI
15th Jul 2025905 AMAQI

25°C19/32°C

15th Jul 20251026 AMAQI
15th Jul 2025917 AMAQI
15th Jul 2025898 AMAQI
15th Jul 2025809 AMAQI
15th Jul 20258510 AMAQI
15th Jul 20258611 AMAQI
15th Jul 20258612 PMAQI
15th Jul 2025821 PMAQI
15th Jul 2025812 PMAQI
15th Jul 2025883 PMAQI
15th Jul 2025884 PMAQI
15th Jul 2025905 PMAQI
15th Jul 2025896 PMAQI
15th Jul 2025917 PMAQI
15th Jul 2025788 PMAQI
15th Jul 2025839 PMAQI
15th Jul 20258810 PMAQI
15th Jul 20259311 PMAQI
16th Jul 20259312 AMAQI
16th Jul 2025911 AMAQI
16th Jul 2025942 AMAQI
16th Jul 2025873 AMAQI
16th Jul 2025794 AMAQI
16th Jul 2025845 AMAQI

25°C19/33°C

16th Jul 2025816 AMAQI
16th Jul 2025847 AMAQI
16th Jul 2025868 AMAQI
16th Jul 2025839 AMAQI
16th Jul 20258710 AMAQI
16th Jul 20258811 AMAQI
16th Jul 20258212 PMAQI
16th Jul 2025891 PMAQI
16th Jul 2025872 PMAQI
16th Jul 2025883 PMAQI
16th Jul 2025894 PMAQI
16th Jul 2025905 PMAQI
16th Jul 2025876 PMAQI
16th Jul 2025887 PMAQI
16th Jul 2025898 PMAQI
16th Jul 2025939 PMAQI
16th Jul 20258610 PMAQI
16th Jul 20258411 PMAQI
17th Jul 20258612 AMAQI
17th Jul 2025891 AMAQI
17th Jul 2025862 AMAQI
17th Jul 2025823 AMAQI
17th Jul 2025844 AMAQI
17th Jul 2025745 AMAQI

27°C20/33°C

17th Jul 2025926 AMAQI
17th Jul 2025967 AMAQI
17th Jul 2025898 AMAQI
17th Jul 2025969 AMAQI
17th Jul 20259110 AMAQI
17th Jul 20259211 AMAQI
17th Jul 20259012 PMAQI
17th Jul 2025921 PMAQI
17th Jul 2025832 PMAQI
17th Jul 2025883 PMAQI
17th Jul 2025904 PMAQI
17th Jul 2025885 PMAQI
17th Jul 2025876 PMAQI
17th Jul 2025907 PMAQI
17th Jul 2025908 PMAQI
17th Jul 2025869 PMAQI
17th Jul 20258710 PMAQI
17th Jul 20259011 PMAQI
18th Jul 20258812 AMAQI
18th Jul 2025901 AMAQI
18th Jul 2025862 AMAQI
18th Jul 2025903 AMAQI
18th Jul 2025834 AMAQI
18th Jul 2025885 AMAQI

28°C21/33°C

18th Jul 2025956 AMAQI
18th Jul 2025867 AMAQI
18th Jul 2025888 AMAQI
18th Jul 2025849 AMAQI
18th Jul 20258310 AMAQI
18th Jul 20258411 AMAQI
18th Jul 20258312 PMAQI
18th Jul 2025811 PMAQI
18th Jul 2025802 PMAQI
18th Jul 2025843 PMAQI
18th Jul 2025824 PMAQI
18th Jul 2025845 PMAQI
18th Jul 2025836 PMAQI
18th Jul 2025847 PMAQI
18th Jul 2025858 PMAQI
18th Jul 2025889 PMAQI
18th Jul 20258310 PMAQI
18th Jul 20258411 PMAQI
19th Jul 20258412 AMAQI
19th Jul 2025831 AMAQI
19th Jul 2025842 AMAQI
19th Jul 2025863 AMAQI
19th Jul 2025904 AMAQI
19th Jul 2025875 AMAQI

29°C21/36°C

19th Jul 2025926 AMAQI
19th Jul 2025927 AMAQI
19th Jul 2025858 AMAQI
19th Jul 2025869 AMAQI
19th Jul 20258810 AMAQI
19th Jul 20259611 AMAQI
19th Jul 20259612 PMAQI
19th Jul 2025891 PMAQI
19th Jul 2025882 PMAQI
19th Jul 2025813 PMAQI
19th Jul 2025814 PMAQI
19th Jul 2025805 PMAQI
19th Jul 2025796 PMAQI
19th Jul 2025817 PMAQI
19th Jul 2025818 PMAQI
19th Jul 2025849 PMAQI
19th Jul 20258510 PMAQI
19th Jul 20258411 PMAQI
20th Jul 20258812 AMAQI
20th Jul 2025861 AMAQI
20th Jul 2025852 AMAQI
20th Jul 2025853 AMAQI
20th Jul 2025864 AMAQI
20th Jul 2025805 AMAQI

30°C22/37°C

20th Jul 2025816 AMAQI
20th Jul 2025817 AMAQI
20th Jul 2025858 AMAQI
20th Jul 2025829 AMAQI
20th Jul 20258510 AMAQI
20th Jul 20258911 AMAQI
20th Jul 20258612 PMAQI
20th Jul 2025861 PMAQI
20th Jul 2025882 PMAQI
20th Jul 2025823 PMAQI
20th Jul 2025814 PMAQI
20th Jul 2025805 PMAQI
20th Jul 2025826 PMAQI
20th Jul 2025827 PMAQI
20th Jul 2025818 PMAQI
20th Jul 2025799 PMAQI
20th Jul 20258110 PMAQI
20th Jul 20258411 PMAQI
21st Jul 20258212 AMAQI
21st Jul 2025851 AMAQI
21st Jul 2025882 AMAQI
21st Jul 2025913 AMAQI
21st Jul 2025744 AMAQI
21st Jul 2025965 AMAQI

29°C22/36°C

21st Jul 2025826 AMAQI
21st Jul 2025867 AMAQI
21st Jul 2025838 AMAQI
21st Jul 2025889 AMAQI
21st Jul 20258610 AMAQI
21st Jul 20258511 AMAQI
21st Jul 20258312 PMAQI
21st Jul 2025881 PMAQI
21st Jul 2025882 PMAQI
21st Jul 2025843 PMAQI
21st Jul 2025844 PMAQI
21st Jul 2025855 PMAQI
21st Jul 2025836 PMAQI
21st Jul 2025847 PMAQI
21st Jul 2025828 PMAQI
21st Jul 2025859 PMAQI
21st Jul 20258510 PMAQI
21st Jul 20258311 PMAQI
22nd Jul 20258312 AMAQI
22nd Jul 2025841 AMAQI
22nd Jul 2025852 AMAQI
22nd Jul 2025843 AMAQI
22nd Jul 2025824 AMAQI
22nd Jul 2025875 AMAQI

29°C22/36°C

22nd Jul 20251026 AMAQI
22nd Jul 2025867 AMAQI
22nd Jul 2025788 AMAQI
22nd Jul 2025869 AMAQI
22nd Jul 20258810 AMAQI
22nd Jul 20258411 AMAQI
22nd Jul 20258712 PMAQI
22nd Jul 2025861 PMAQI
22nd Jul 2025862 PMAQI
22nd Jul 2025853 PMAQI
22nd Jul 2025764 PMAQI
22nd Jul 2025785 PMAQI
22nd Jul 2025746 PMAQI
22nd Jul 2025787 PMAQI
22nd Jul 2025838 PMAQI
22nd Jul 2025949 PMAQI
22nd Jul 20258810 PMAQI
22nd Jul 20258711 PMAQI
23rd Jul 20258312 AMAQI
23rd Jul 2025901 AMAQI
23rd Jul 2025942 AMAQI
23rd Jul 2025853 AMAQI
23rd Jul 2025604 AMAQI
23rd Jul 2025635 AMAQI

29°C22/36°C

23rd Jul 2025806 AMAQI
23rd Jul 2025747 AMAQI
23rd Jul 2025888 AMAQI
23rd Jul 2025749 AMAQI
23rd Jul 20257010 AMAQI
23rd Jul 20257611 AMAQI
23rd Jul 20257212 PMAQI
23rd Jul 2025731 PMAQI
23rd Jul 2025712 PMAQI
23rd Jul 2025693 PMAQI
23rd Jul 2025784 PMAQI
23rd Jul 2025785 PMAQI
23rd Jul 2025806 PMAQI
23rd Jul 2025797 PMAQI
23rd Jul 2025888 PMAQI
23rd Jul 2025939 PMAQI
23rd Jul 20257810 PMAQI
23rd Jul 20258511 PMAQI
24th Jul 20258912 AMAQI
24th Jul 20251001 AMAQI
24th Jul 2025972 AMAQI
24th Jul 2025853 AMAQI
24th Jul 2025644 AMAQI
24th Jul 2025725 AMAQI

28°C21/35°C

24th Jul 2025686 AMAQI
24th Jul 2025817 AMAQI
24th Jul 2025938 AMAQI
24th Jul 2025949 AMAQI
24th Jul 20258510 AMAQI
24th Jul 20258011 AMAQI
24th Jul 20257312 PMAQI
24th Jul 2025701 PMAQI
24th Jul 2025772 PMAQI
24th Jul 2025703 PMAQI
24th Jul 2025734 PMAQI
24th Jul 2025745 PMAQI
24th Jul 2025786 PMAQI
24th Jul 2025787 PMAQI
24th Jul 2025748 PMAQI
24th Jul 2025709 PMAQI
24th Jul 20258310 PMAQI
24th Jul 20257511 PMAQI
25th Jul 20257312 AMAQI
25th Jul 2025761 AMAQI
25th Jul 2025792 AMAQI
25th Jul 2025803 AMAQI
25th Jul 2025744 AMAQI
25th Jul 2025725 AMAQI

27°C19/33°C

25th Jul 2025706 AMAQI
25th Jul 2025687 AMAQI
25th Jul 2025698 AMAQI
25th Jul 2025729 AMAQI
25th Jul 20256510 AMAQI
25th Jul 20256211 AMAQI
25th Jul 20256412 PMAQI
25th Jul 2025601 PMAQI
25th Jul 2025572 PMAQI
25th Jul 2025653 PMAQI
25th Jul 2025684 PMAQI
25th Jul 2025785 PMAQI
25th Jul 2025736 PMAQI
25th Jul 2025727 PMAQI
25th Jul 2025688 PMAQI
25th Jul 2025709 PMAQI
25th Jul 20257410 PMAQI
25th Jul 20257611 PMAQI
26th Jul 20257812 AMAQI
26th Jul 2025701 AMAQI
26th Jul 2025712 AMAQI
26th Jul 2025693 AMAQI
26th Jul 2025644 AMAQI
26th Jul 2025705 AMAQI

27°C19/34°C

26th Jul 2025726 AMAQI
26th Jul 2025677 AMAQI
26th Jul 2025608 AMAQI
26th Jul 2025629 AMAQI
26th Jul 20256310 AMAQI
26th Jul 20256111 AMAQI
26th Jul 20256212 PMAQI
26th Jul 2025621 PMAQI
26th Jul 2025582 PMAQI
26th Jul 2025573 PMAQI
26th Jul 2025594 PMAQI
26th Jul 2025605 PMAQI
26th Jul 2025606 PMAQI
26th Jul 2025627 PMAQI
26th Jul 2025678 PMAQI
26th Jul 2025669 PMAQI
26th Jul 20256410 PMAQI
26th Jul 20256411 PMAQI
27th Jul 20256212 AMAQI
27th Jul 2025601 AMAQI
27th Jul 2025582 AMAQI
27th Jul 2025593 AMAQI
27th Jul 2025624 AMAQI
27th Jul 2025605 AMAQI

28°C20/35°C

27th Jul 2025626 AMAQI
27th Jul 2025647 AMAQI
27th Jul 2025648 AMAQI
27th Jul 2025629 AMAQI
27th Jul 20256310 AMAQI
27th Jul 20256611 AMAQI
27th Jul 20256312 PMAQI
27th Jul 2025631 PMAQI
27th Jul 2025612 PMAQI
27th Jul 2025653 PMAQI
27th Jul 2025674 PMAQI
27th Jul 2025685 PMAQI
27th Jul 2025646 PMAQI
27th Jul 2025657 PMAQI
27th Jul 2025708 PMAQI
27th Jul 2025649 PMAQI
27th Jul 20256210 PMAQI
27th Jul 20258011 PMAQI
28th Jul 20257112 AMAQI
28th Jul 2025691 AMAQI
28th Jul 2025682 AMAQI
28th Jul 2025713 AMAQI
28th Jul 2025754 AMAQI
28th Jul 2025735 AMAQI

28°C22/34°C

28th Jul 2025736 AMAQI
28th Jul 2025717 AMAQI
28th Jul 2025678 AMAQI
28th Jul 2025689 AMAQI
28th Jul 20256810 AMAQI
28th Jul 20256211 AMAQI
28th Jul 20256612 PMAQI
28th Jul 2025631 PMAQI
28th Jul 2025652 PMAQI
28th Jul 2025643 PMAQI
28th Jul 2025664 PMAQI
28th Jul 2025665 PMAQI
28th Jul 2025696 PMAQI
28th Jul 2025707 PMAQI
28th Jul 2025678 PMAQI
28th Jul 2025669 PMAQI
28th Jul 20256410 PMAQI
28th Jul 20257311 PMAQI
29th Jul 20257012 AMAQI
29th Jul 2025681 AMAQI
29th Jul 2025742 AMAQI
29th Jul 2025763 AMAQI
29th Jul 2025674 AMAQI
29th Jul 2025715 AMAQI

28°C21/35°C

29th Jul 2025716 AMAQI
29th Jul 2025707 AMAQI
29th Jul 2025738 AMAQI
29th Jul 2025719 AMAQI
29th Jul 20256810 AMAQI
29th Jul 20256711 AMAQI
29th Jul 20257212 PMAQI
29th Jul 2025741 PMAQI
29th Jul 2025722 PMAQI
29th Jul 2025663 PMAQI
29th Jul 2025674 PMAQI
29th Jul 2025615 PMAQI
29th Jul 2025626 PMAQI
29th Jul 2025647 PMAQI
29th Jul 2025668 PMAQI
29th Jul 2025689 PMAQI
29th Jul 20256810 PMAQI
29th Jul 20256711 PMAQI
30th Jul 20257412 AMAQI
30th Jul 2025731 AMAQI
30th Jul 2025742 AMAQI
30th Jul 2025693 AMAQI
30th Jul 2025644 AMAQI
30th Jul 2025605 AMAQI

30°C22/36°C

30th Jul 2025616 AMAQI
30th Jul 2025687 AMAQI
30th Jul 2025748 AMAQI
30th Jul 2025689 AMAQI
30th Jul 20256610 AMAQI
30th Jul 20256411 AMAQI
30th Jul 20256412 PMAQI
30th Jul 2025661 PMAQI
30th Jul 2025622 PMAQI
30th Jul 2025653 PMAQI
30th Jul 2025704 PMAQI
30th Jul 2025695 PMAQI
30th Jul 2025706 PMAQI
30th Jul 2025727 PMAQI
30th Jul 2025748 PMAQI
30th Jul 2025739 PMAQI
30th Jul 20258210 PMAQI
30th Jul 20259211 PMAQI
31st Jul 20259212 AMAQI
31st Jul 2025921 AMAQI
31st Jul 2025922 AMAQI
31st Jul 2025923 AMAQI
31st Jul 2025924 AMAQI
31st Jul 2025855 AMAQI

29°C23/35°C

31st Jul 2025586 AMAQI
31st Jul 2025587 AMAQI
31st Jul 2025648 AMAQI
31st Jul 2025659 AMAQI
31st Jul 20256310 AMAQI
31st Jul 20256411 AMAQI
31st Jul 20256012 PMAQI
31st Jul 2025631 PMAQI
31st Jul 2025662 PMAQI
31st Jul 2025783 PMAQI
31st Jul 2025764 PMAQI
31st Jul 2025785 PMAQI
31st Jul 2025736 PMAQI
31st Jul 2025807 PMAQI
31st Jul 2025808 PMAQI
31st Jul 2025799 PMAQI
31st Jul 20258510 PMAQI
31st Jul 20258611 PMAQI
1st Aug 20258712 AMAQI
1st Aug 2025761 AMAQI
1st Aug 2025802 AMAQI
1st Aug 2025833 AMAQI
1st Aug 2025844 AMAQI
1st Aug 2025915 AMAQI

28°C22/35°C

1st Aug 2025866 AMAQI
1st Aug 2025857 AMAQI
1st Aug 2025988 AMAQI
1st Aug 2025929 AMAQI
1st Aug 20257510 AMAQI
1st Aug 20258711 AMAQI
1st Aug 20259212 PMAQI
1st Aug 2025901 PMAQI
1st Aug 2025962 PMAQI
1st Aug 2025793 PMAQI
1st Aug 2025784 PMAQI
1st Aug 2025885 PMAQI
1st Aug 2025846 PMAQI
1st Aug 2025847 PMAQI
1st Aug 2025768 PMAQI
1st Aug 2025829 PMAQI
1st Aug 20258310 PMAQI
1st Aug 20258511 PMAQI
2nd Aug 20258412 AMAQI
2nd Aug 2025821 AMAQI
2nd Aug 2025782 AMAQI
2nd Aug 2025823 AMAQI
2nd Aug 2025884 AMAQI
2nd Aug 2025885 AMAQI

28°C21/35°C

2nd Aug 2025946 AMAQI
6 AM
2nd Aug 2025807 AMAQI
2nd Aug 2025848 AMAQI
2nd Aug 2025909 AMAQI
2nd Aug 20257910 AMAQI
2nd Aug 20258011 AMAQI
2nd Aug 20258212 PMAQI
2nd Aug 2025771 PMAQI
1 PM
2nd Aug 2025832 PMAQI
2nd Aug 2025803 PMAQI
2nd Aug 2025814 PMAQI
2nd Aug 2025835 PMAQI
2nd Aug 2025776 PMAQI
2nd Aug 2025807 PMAQI
2nd Aug 2025838 PMAQI
8 PM
2nd Aug 2025789 PMAQI
1 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 8 PM

89AQI

15 hours / Day
450 hours / Month
Avg. Lowest Time
6 AM - 8 PM

89AQI

15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 PM (Avg. 89), while the lowest AQI was between 6 AM to 8 PM (Avg. 89).
Night time
Avg. Highest Time
12 AM - 3 AM

93AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
4 AM - 11 PM

89AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 93), while the lowest AQI was between 4 AM to 11 PM (Avg. 89).

2025 Days Vs Air Quality

Ostandary, Arak, Markazi, Iran

2025

3%

6

80%

171

17%

36

Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)

Good
6 Days
Moderate
171 Days
Poor
36 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 3%

Health Risk Level:

Extreme

In 2025, 3% of 214 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.

Annual Air Quality Insights

Ostandary, Arak, Markazi, Iran

AQI levels in 2025

AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.

Jan.

Feb.

Mar.

Apr.

May

Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

1st January 2025
88AQI
2nd January 2025
85AQI
3rd January 2025
86AQI
4th January 2025
96AQI
5th January 2025
84AQI
6th January 2025
110AQI
7th January 2025
103AQI
8th January 2025
89AQI
9th January 2025
108AQI
10th January 2025
130AQI
11th January 2025
143AQI
12th January 2025
124AQI
13th January 2025
91AQI
14th January 2025
87AQI
15th January 2025
106AQI
16th January 2025
88AQI
17th January 2025
74AQI
18th January 2025
79AQI
19th January 2025
84AQI
20th January 2025
74AQI
21st January 2025
68AQI
22nd January 2025
79AQI
23rd January 2025
81AQI
24th January 2025
100AQI
25th January 2025
90AQI
26th January 2025
85AQI
27th January 2025
90AQI
28th January 2025
76AQI
29th January 2025
75AQI
30th January 2025
84AQI
31st January 2025
97AQI
1st February 2025
99AQI
2nd February 2025
112AQI
3rd February 2025
102AQI
4th February 2025
85AQI
5th February 2025
75AQI
6th February 2025
87AQI
7th February 2025
82AQI
8th February 2025
80AQI
9th February 2025
63AQI
10th February 2025
72AQI
11th February 2025
100AQI
12th February 2025
142AQI
13th February 2025
128AQI
14th February 2025
64AQI
15th February 2025
59AQI
16th February 2025
82AQI
17th February 2025
66AQI
18th February 2025
66AQI
19th February 2025
68AQI
20th February 2025
66AQI
21st February 2025
58AQI
22nd February 2025
49AQI
23rd February 2025
48AQI
24th February 2025
49AQI
25th February 2025
56AQI
26th February 2025
47AQI
27th February 2025
43AQI
28th February 2025
49AQI
1st March 2025
51AQI
2nd March 2025
52AQI
3rd March 2025
58AQI
4th March 2025
52AQI
5th March 2025
56AQI
6th March 2025
55AQI
7th March 2025
67AQI
8th March 2025
54AQI
9th March 2025
53AQI
10th March 2025
62AQI
11th March 2025
59AQI
12th March 2025
66AQI
13th March 2025
65AQI
14th March 2025
80AQI
15th March 2025
109AQI
16th March 2025
108AQI
17th March 2025
104AQI
18th March 2025
104AQI
19th March 2025
106AQI
20th March 2025
100AQI
21st March 2025
77AQI
22nd March 2025
67AQI
23rd March 2025
71AQI
24th March 2025
74AQI
25th March 2025
69AQI
26th March 2025
69AQI
27th March 2025
69AQI
28th March 2025
73AQI
29th March 2025
71AQI
30th March 2025
73AQI
31st March 2025
79AQI
1st April 2025
70AQI
2nd April 2025
74AQI
3rd April 2025
71AQI
4th April 2025
65AQI
5th April 2025
58AQI
6th April 2025
65AQI
7th April 2025
67AQI
8th April 2025
63AQI
9th April 2025
69AQI
10th April 2025
72AQI
11th April 2025
81AQI
12th April 2025
78AQI
13th April 2025
76AQI
14th April 2025
77AQI
15th April 2025
72AQI
16th April 2025
98AQI
17th April 2025
67AQI
18th April 2025
66AQI
19th April 2025
67AQI
20th April 2025
70AQI
21st April 2025
68AQI
22nd April 2025
72AQI
23rd April 2025
71AQI
24th April 2025
74AQI
25th April 2025
83AQI
26th April 2025
91AQI
27th April 2025
76AQI
28th April 2025
74AQI
29th April 2025
72AQI
30th April 2025
79AQI
1st May 2025
78AQI
2nd May 2025
73AQI
3rd May 2025
75AQI
4th May 2025
76AQI
5th May 2025
73AQI
6th May 2025
78AQI
7th May 2025
81AQI
8th May 2025
79AQI
9th May 2025
72AQI
10th May 2025
68AQI
11th May 2025
66AQI
12th May 2025
67AQI
13th May 2025
68AQI
14th May 2025
85AQI
15th May 2025
77AQI
16th May 2025
74AQI
17th May 2025
75AQI
18th May 2025
71AQI
19th May 2025
73AQI
20th May 2025
80AQI
21st May 2025
76AQI
22nd May 2025
86AQI
23rd May 2025
88AQI
24th May 2025
75AQI
25th May 2025
70AQI
26th May 2025
74AQI
27th May 2025
74AQI
28th May 2025
74AQI
29th May 2025
73AQI
30th May 2025
79AQI
31st May 2025
69AQI
1st June 2025
69AQI
2nd June 2025
71AQI
3rd June 2025
68AQI
4th June 2025
67AQI
5th June 2025
65AQI
6th June 2025
69AQI
7th June 2025
70AQI
8th June 2025
72AQI
9th June 2025
71AQI
10th June 2025
79AQI
11th June 2025
79AQI
12th June 2025
75AQI
13th June 2025
78AQI
14th June 2025
80AQI
15th June 2025
85AQI
16th June 2025
80AQI
17th June 2025
86AQI
18th June 2025
89AQI
19th June 2025
103AQI
20th June 2025
96AQI
21st June 2025
108AQI
22nd June 2025
119AQI
23rd June 2025
104AQI
24th June 2025
93AQI
25th June 2025
94AQI
26th June 2025
105AQI
27th June 2025
100AQI
28th June 2025
102AQI
29th June 2025
116AQI
30th June 2025
114AQI
1st July 2025
118AQI
2nd July 2025
119AQI
3rd July 2025
96AQI
4th July 2025
103AQI
5th July 2025
111AQI
6th July 2025
123AQI
7th July 2025
116AQI
8th July 2025
110AQI
9th July 2025
106AQI
10th July 2025
101AQI
11th July 2025
114AQI
12th July 2025
114AQI
13th July 2025
106AQI
14th July 2025
99AQI
15th July 2025
91AQI
16th July 2025
87AQI
17th July 2025
88AQI
18th July 2025
86AQI
19th July 2025
86AQI
20th July 2025
83AQI
21st July 2025
85AQI
22nd July 2025
85AQI
23rd July 2025
79AQI
24th July 2025
80AQI
25th July 2025
71AQI
26th July 2025
65AQI
27th July 2025
64AQI
28th July 2025
68AQI
29th July 2025
69AQI
30th July 2025
70AQI
31st July 2025
77AQI
1st August 2025
85AQI

92AQI

75AQI

73AQI

73AQI

75AQI

87AQI

93AQI

85AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202581AQI

24
7
6
18
4
26
5
30
31
22
8
19
12
1
6
171
36

Highest AQI recorded in

July

93AQI

Lowest AQI recorded in

March

73AQI

202477AQI

5
15
7
1
22
4
1
26
3
1
30
8
16
30
31
25
6
22
7
1
6
22
2
13
16
1
25
6
33
280
36
3

Highest AQI recorded in

September

99AQI

Lowest AQI recorded in

May

56AQI

2023102AQI

2
9
14
6
8
18
2
1
21
7
2
24
4
11
17
1
12
7
8
8
13
1
9
18
3
2
9
11
18
15
13
15
15
16
151
132
24
1

Highest AQI recorded in

July

141AQI

Lowest AQI recorded in

May

63AQI

2022105AQI

4
11
13
3
7
12
2
15
15
1
10
7
9
11
7
2
14
9
11
9
4
1
12
5
5
20
2
14
13
2
4
129
96
18
3

Highest AQI recorded in

May

127AQI

Lowest AQI recorded in

November

80AQI

202179AQI

3
1
12
8
15
13
11
17
2
15
7
1
4
4
4
7
3
9
12
7
3
7
19
1
11
19
1
22
1
5
1
1
5
9
6
10
1
100
81
67
27
2

Highest AQI recorded in

July

113AQI

Lowest AQI recorded in

May

35AQI

202050AQI

1
6
14
12
13
3
15
9
18
2
8
15
3
11
77
48
5

Highest AQI recorded in

October

72AQI

Lowest AQI recorded in

March

0AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2022(Avg.)
105AQI
Least Polluted Year Recorded
2020(Avg.)
50AQI

Ostandary's annual 2025 AQI (81) shows an average percentage change of 5.03% (worsened AQI) compared to previous years: 2020 (50), 2021 (79), 2022 (105), 2023 (102), 2024 (77).