Chas Tennis
G.O.A.T.
See Pm2.5 in Melbourne over the last week. 24 hour clock. Present time in Melbourne is ahead of us, sometimes next day, and on the right.
Purple air is very hazardous. Green is good and may reflect effects of the rain on the smoke this week in Melbourne.
UPDATE - Sunday 19 Jan - When I go to the site above and view the entire continent of Australia the air quality looks very good.
I just found this and have to check that the color code used is the same as the EPA Air Quality Index (AQI). UPDATE - see post #7 the color code being displayed is probably equivalent to the EPA AQI but that is not clear to me.
To do something about the air quality in and around your home and your tennis courts -
For air quality near your home and tennis courts search Purple Air _ Maps _ and move to your location or search your city. The circles with black rings are indoor sensors and those with no ring are outdoor sensors. These sensors only measure particulate pollution, not ozone and other pollutants. pm2.5 is a nasty pollutant and the EPA has assigned color codes to indicate the degree of hazard.
Information on Air Qaulity Index (AQI).
Purple air is very hazardous. Green is good and may reflect effects of the rain on the smoke this week in Melbourne.
UPDATE - Sunday 19 Jan - When I go to the site above and view the entire continent of Australia the air quality looks very good.
I just found this and have to check that the color code used is the same as the EPA Air Quality Index (AQI). UPDATE - see post #7 the color code being displayed is probably equivalent to the EPA AQI but that is not clear to me.
To do something about the air quality in and around your home and your tennis courts -
For air quality near your home and tennis courts search Purple Air _ Maps _ and move to your location or search your city. The circles with black rings are indoor sensors and those with no ring are outdoor sensors. These sensors only measure particulate pollution, not ozone and other pollutants. pm2.5 is a nasty pollutant and the EPA has assigned color codes to indicate the degree of hazard.
I moved to California last year and have asthma. It does not rain here for several months in a row. High winds come up in the fall when everything is driest and that causes fires as you have seen on TV news.
What can you do?
One thing that helps considerably is to know where the smoke is, how bad it is , and to know what the smoke level is in your home. You can view outside conditions around your home on the internet. One source is the site with PurpleAir sensors. You need an indoor sensor of your own to measure in your home.
Search PurpleAir
Maps
Type in your city or state.
Inside each circle is a number. The numbers are EPA Air Quality Index for particle size <2.5 micrometers measurements from PurpleAir sensors.
The sensors with black rings around them are indoor sensors.
The sensors with no rings are outdoor sensors.
If you click on the sensor circle it shows the history of sensor readings for a few days.
The sensors will also read particle size 10 micrometers. Temp and humidity and well as the direct densities of 2.5 & 10 um in ugm/M^3 plus several raw count measumrents. The EPA highlights both PM 2.5 Air Quality Indexes and Ozone parts per billion as two of the most hazardous air pollutants.
If you know the outdoor Air Quality Index you know when
1) to play tennis or not
2) when to open windows or not
If you know the indoor Air Quality Index
3) when to use indoor air cleaners such as HEPA air cleaners.
4) when to open windows when cooking makes the indoor air of your home very high in pollutants.
There are many sources of information on the hazards of small particulates in the air and ozone. Lately, they say that particulates can get into your blood stream and add to the risks of strokes and cardiovascular disease.
This is how bad the air can become. Also, note the contributing factors such as farmers burning vegetation to clear land. In California, they are considering increasing 'controlled burns' as a measure to reduce wildfires.
https://www.bbc.com/news/world-asia-india-50280390
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Information on Air Qaulity Index (AQI).
Air Quality Index (AQI) Basics
Air Quality Index (AQI) Basics - The AQI is an index for reporting daily air quality
www.airnow.gov
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