Harringay, Haringey - So Good they Spelt it Twice!
Check the pollution levels in your local area
The London Air Quality Network contains information about air quality in and around Greater London. Measurements are collected either hourly or twice daily from continuous monitoring sites including Priory Park, processed and checked then placed on the web site with an hourly update.
A map shows the latest pollution levels as recorded at pollution monitoring sites across Greater London. To see current pollution levels in an area you can enter your postcode in a box to get a local report.
London Air Quality Network
You can also get daily updates and news on Twitter at London Air
A map shows the latest pollution levels as recorded at pollution monitoring sites across Greater London. To see current pollution levels in an area you can enter your postcode in a box to get a local report.
London Air Quality Network
You can also get daily updates and news on Twitter at London Air
Tags for Forum Posts: air quality, pollution
Replies to This Discussion
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Permalink Reply by maggie on
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Thanks Liz, I wonder what the levels are like for Green Lanes in the evening rush hour rather than for Priory Park.
From the London Air Quality website I think that the pink line on the graph denotes levels of nitrogen dioxide ppb with 'low' levels at 0-149 and 'moderate' levels at 150-199. The blue line denotes levels of ozone with 'low' at 0-49, 'moderate' at 50-89, and 'high' at 90-180 or above. The website also shows levels of carbon monoxide and particulates and other interesting information.
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Permalink Reply by Liz on
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There has been a number of discussions on this topic in the past including this one with a number of links (including to this website) and discussion about a need to site a monitoring station near Green Lanes. I somehow feel that those lines would be a lot higher based on data from GL.
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I e mailed one of the researchers to ask how they choose the areas to monitor air quality, unfortunately I don't know how to make a link to her answer but essentially pollutants like nitrogen dioxide and particulates are measured near busy roads and the measurement of ozone levels is related more to rural areas. The main reason for siting is a practical matter however, the equipment needs electricity and air conditioning and so it is usually sited at a Town Hall, a school or in portable cabins. On the map we appear to have 2 monitoring stations, one at Priory Park (which was showing increased levels of ozone, which may not be surprising as its in quite a green area), and the other is at the Town Hall, which is busy but probably still not so busy as Green Lanes.
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Permalink Reply by PeterPiper on
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Hey LBH & Brian Haley, how about some of this kit on Green Lanes to measure the air quality? Imperial College website
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Permalink Reply by Alison P on
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Can't quite work this out - what do the very clear blue spikes mean? Are they to do with traffic levels at certain times of day? Sorry if I'm missing something obvious!
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Not sure but according to Wiki , ozone is formed 'by the reaction of sunlight on air containing hydrocarbons and nitrogen oxides', so I'm guessing that the blue peaks reflect high levels of sunlight mixing with pollutants during the sunny afternoons that we had last week, with the dips at night. The WHO has recommended that standards should be set at 51 ppb and the peaks on the graph breech that, however it is generally calculated as the mean daily level so the low levels at night bring the overall values down. Difficult to know if its worrying but the Canadian Centre for Occupational Health (same Wiki site) say 'even low concentrations of ozone can be harmful to upper respiratory tract and lungs'. Anyone out there know more?
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