Caotun AQI History

Hourly air quality data for the past 24 hours in Caotun, Nantou.

24-Hour Summary

Average AQI

Peak AQI

Best AQI

Hourly AQI Data

TimeAQICategoryPM2.5PM10
04:00 pm67Moderate17.518.7
05:00 pm68Moderate18.019.4
06:00 pm71Moderate20.121.8
07:00 pm79Moderate23.925.7
08:00 pm108Unhealthy for Sensitive Groups38.340.3
09:00 pm125Unhealthy for Sensitive Groups45.347.3
10:00 pm146Unhealthy for Sensitive Groups53.855.6
11:00 pm148Unhealthy for Sensitive Groups54.456.2
12:00 am131Unhealthy for Sensitive Groups47.651.0
01:00 am136Unhealthy for Sensitive Groups49.852.9
02:00 am140Unhealthy for Sensitive Groups51.252.7
03:00 am127Unhealthy for Sensitive Groups46.147.1
04:00 am124Unhealthy for Sensitive Groups44.745.6
05:00 am125Unhealthy for Sensitive Groups45.146.3
06:00 am123Unhealthy for Sensitive Groups44.545.9
07:00 am102Unhealthy for Sensitive Groups35.937.4
08:00 am50Good9.09.3
09:00 am58Moderate12.713.0
10:00 am63Moderate15.716.1
11:00 am71Moderate20.020.4
12:00 pm81Moderate25.025.4
01:00 pm88Moderate28.829.2
02:00 pm89Moderate29.329.8
03:00 pm90Moderate30.330.7
04:00 pm92Moderate31.031.4
05:00 pm91Moderate30.731.3
06:00 pm91Moderate30.731.3
07:00 pm94Moderate32.132.7
08:00 pm114Unhealthy for Sensitive Groups40.742.6
09:00 pm118Unhealthy for Sensitive Groups42.443.9
10:00 pm144Unhealthy for Sensitive Groups52.954.1
11:00 pm147Unhealthy for Sensitive Groups54.155.5
12:00 am141Unhealthy for Sensitive Groups51.853.1
01:00 am146Unhealthy for Sensitive Groups53.654.9
02:00 am150Unhealthy for Sensitive Groups55.456.8
03:00 am144Unhealthy for Sensitive Groups52.954.4
04:00 am141Unhealthy for Sensitive Groups51.753.3
05:00 am139Unhealthy for Sensitive Groups51.052.6
06:00 am145Unhealthy for Sensitive Groups53.254.7
07:00 am129Unhealthy for Sensitive Groups47.048.5
08:00 am110Unhealthy for Sensitive Groups39.344.0
09:00 am96Moderate33.237.6
10:00 am92Moderate31.236.0
11:00 am93Moderate31.837.4
12:00 pm99Moderate34.841.7
01:00 pm106Unhealthy for Sensitive Groups37.446.0
02:00 pm110Unhealthy for Sensitive Groups39.249.6
03:00 pm111Unhealthy for Sensitive Groups39.650.6
04:00 pm110Unhealthy for Sensitive Groups39.150.2
05:00 pm108Unhealthy for Sensitive Groups38.549.7
06:00 pm113Unhealthy for Sensitive Groups40.252.4
07:00 pm120Unhealthy for Sensitive Groups43.457.6
08:00 pm139Unhealthy for Sensitive Groups51.166.6
09:00 pm154Unhealthy60.176.1
10:00 pm159Unhealthy66.483.4
11:00 pm157Unhealthy64.778.5
12:00 am162Unhealthy70.880.6
01:00 am163Unhealthy72.282.0
02:00 am163Unhealthy73.182.4
03:00 am164Unhealthy73.883.1
04:00 am163Unhealthy73.182.4
05:00 am163Unhealthy72.482.0
06:00 am161Unhealthy70.380.6
07:00 am135Unhealthy for Sensitive Groups49.263.1
08:00 am111Unhealthy for Sensitive Groups39.550.8
09:00 am97Moderate34.045.9
10:00 am91Moderate30.641.9
11:00 am88Moderate28.939.7
12:00 pm89Moderate29.340.3
01:00 pm85Moderate27.637.3
02:00 pm84Moderate26.735.0
03:00 pm83Moderate26.434.2
04:00 pm84Moderate26.634.5
05:00 pm82Moderate25.733.4
06:00 pm82Moderate25.633.3
07:00 pm86Moderate27.834.8
08:00 pm89Moderate29.536.3
09:00 pm103Unhealthy for Sensitive Groups36.343.3
10:00 pm121Unhealthy for Sensitive Groups43.751.0
11:00 pm131Unhealthy for Sensitive Groups47.856.1
12:00 am134Unhealthy for Sensitive Groups49.157.9
01:00 am143Unhealthy for Sensitive Groups52.760.3
02:00 am153Unhealthy58.163.8
03:00 am155Unhealthy60.565.2
04:00 am153Unhealthy58.264.5
05:00 am152Unhealthy57.565.4
06:00 am150Unhealthy for Sensitive Groups55.263.6
07:00 am113Unhealthy for Sensitive Groups40.551.1
08:00 am77Moderate23.329.9
09:00 am83Moderate26.533.5
10:00 am85Moderate27.435.3
11:00 am88Moderate28.837.3
12:00 pm89Moderate29.437.7
01:00 pm91Moderate30.538.5
02:00 pm90Moderate29.837.5
03:00 pm89Moderate29.737.8
04:00 pm91Moderate30.439.0
05:00 pm93Moderate31.440.5
06:00 pm95Moderate32.541.6
07:00 pm99Moderate34.743.4
08:00 pm101Unhealthy for Sensitive Groups35.543.9
09:00 pm124Unhealthy for Sensitive Groups44.853.4
10:00 pm138Unhealthy for Sensitive Groups50.659.4
11:00 pm146Unhealthy for Sensitive Groups53.862.4
12:00 am145Unhealthy for Sensitive Groups53.261.5
01:00 am138Unhealthy for Sensitive Groups50.558.7
02:00 am135Unhealthy for Sensitive Groups49.556.8
03:00 am142Unhealthy for Sensitive Groups52.257.4
04:00 am152Unhealthy57.460.3
05:00 am155Unhealthy61.063.8
06:00 am158Unhealthy65.468.2
07:00 am127Unhealthy for Sensitive Groups45.949.0
08:00 am63Moderate15.517.1
09:00 am66Moderate17.220.0
10:00 am66Moderate17.118.6
11:00 am70Moderate19.420.9
12:00 pm79Moderate23.925.4
01:00 pm88Moderate29.130.7
02:00 pm92Moderate31.332.9
03:00 pm97Moderate33.935.5
04:00 pm98Moderate34.536.1
05:00 pm99Moderate34.836.3
06:00 pm100Moderate35.436.9
07:00 pm101Unhealthy for Sensitive Groups35.537.1
08:00 pm139Unhealthy for Sensitive Groups50.852.3
09:00 pm152Unhealthy57.659.1
10:00 pm156Unhealthy62.664.0
11:00 pm158Unhealthy65.066.1
12:00 am159Unhealthy66.467.3
01:00 am157Unhealthy64.765.4
02:00 am155Unhealthy61.261.9
03:00 am152Unhealthy57.057.5
04:00 am146Unhealthy for Sensitive Groups53.854.1
05:00 am141Unhealthy for Sensitive Groups51.651.8
06:00 am138Unhealthy for Sensitive Groups50.450.8
07:00 am131Unhealthy for Sensitive Groups47.748.5
08:00 am54Moderate10.611.3
09:00 am52Moderate9.610.9
10:00 am53Moderate10.110.6
11:00 am59Moderate13.213.7
12:00 pm68Moderate18.319.1
01:00 pm75Moderate22.223.2
02:00 pm81Moderate25.326.4
03:00 pm81Moderate25.426.7
04:00 pm79Moderate24.225.4
05:00 pm75Moderate22.123.4
06:00 pm72Moderate20.421.7
07:00 pm71Moderate19.621.0
08:00 pm79Moderate24.226.7
09:00 pm85Moderate27.129.7
10:00 pm102Unhealthy for Sensitive Groups35.938.8
11:00 pm127Unhealthy for Sensitive Groups46.248.1
12:00 am141Unhealthy for Sensitive Groups51.653.1
01:00 am145Unhealthy for Sensitive Groups53.354.7
02:00 am145Unhealthy for Sensitive Groups53.254.5
03:00 am141Unhealthy for Sensitive Groups51.853.0
04:00 am135Unhealthy for Sensitive Groups49.550.4
05:00 am136Unhealthy for Sensitive Groups49.650.5
06:00 am140Unhealthy for Sensitive Groups51.552.4
07:00 am103Unhealthy for Sensitive Groups36.437.7
08:00 am74Moderate21.622.8
09:00 am63Moderate15.417.1
10:00 am56Moderate12.014.1
11:00 am55Moderate11.413.6
12:00 pm55Moderate11.113.3
01:00 pm56Moderate11.913.5
02:00 pm55Moderate11.312.3
03:00 pm52Moderate9.511.0
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