This page contains real-time data from the BLANkET air station at Gretna (Derwent valley, Tasmania) for today and yesterday. The Gretna station is approximately 300m south-west of the town centre.
Current air quality at Gretna
Date: 27 September 2023 Time: 00:40 AEST (add one hour for summer time)
Current PM10 = 4 micrograms per cubic metre
Current PM2.5 = 3 micrograms per cubic metre
Hour-average PM2.5 = 4 micrograms per cubic metre
Air quality health category (from the hour-average PM2.5) is good
The plots below show PM10 and PM2.5 indicative data (top) and meteorological data (bottom) measured today at Gretna. The most recent measurements are shown in the boxes to the right of the plots below.
T - air temperature
RH - relative humidity
WS - wind speed
WD - wind direction
RF - daily rainfall
P - mean sea-level pressure (MSLP)
The meteorological data are provided as a guide to interpreting the air quality data. They should not be used in place of Bureau of Meteorology data for determining weather conditions in a given region.
Please Note: subject to network connectivity, this plot will be updated approximately every 10 minutes during the day. Use the 'Refresh' or 'Reload' button on your browser (or press F5) to refresh the plot. If networking issues do not allow real-time access on a given day the plot will show the most recently available data.
More information about interpreting the plots
Air quality health categories
The Tasmanian Department of Health provides the following air quality health categories based on the hour-averaged PM2.5 value:
Good: 0 to 9 micrograms per cubic metre
Fairly Good: 10 to 24 micrograms per cubic metre
Fairly Poor: 25 to 49 micrograms per cubic metre
Poor: 50 to 99 micrograms per cubic metre
Very Poor: 100 to 299 micrograms per cubic metre
Extremely Poor: Over 300 micrograms per cubic metre
See the Department of Health Air Quality page for more information - scroll down to Tracking Air Quality for category descriptions.
Yesterday's data from Gretna BLANkET station
The plots below show PM10 and PM2.5 indicative data (top) and meteorological data (bottom) measured yesterday at Gretna (Derwent valley, Tasmania). The day-average measurements are shown in the boxes to the right of the plots below.
We would like to acknowledge the support of TasWater for assisting in the installation and operation of the station.
Data for this station for other time intervals (including previous years) can be accessed from the Historical BLANkET Data page.
Please Note: if network connectivity has prevented remote access to the station the plot will show the most recently available complete day of data.
Using our data
The Environment Protection Authority of Tasmania (the EPA), as licensor of air quality data, publicly shares the material to you as licensee under the Creative Commons — Attribution-ShareAlike 4.0 International — CC BY-SA 4.0 license.
You agree to provide appropriate credit to the EPA (attribution) as the creator of the data; link the license and show the changes made to the data.
The EPA does not endorse you or your use of the data.
The EPA is not responsible for the availability of the data; any data loss; misuse of data or any direct or indirect consequences of relying upon or using the data in its present or future format. If you remix, transform or build upon the data, you must distribute the material under the same license noted above.