#greenmyschool @GreenMySchool and the #MAQF is gathering pace and poor air quality is finally getting much needed media exposure.

Improve roadside air quality with Hedera Screens Living Green Screens

Thousands of children up and down the country are being exposed to poor air quality that risk causing lifelong health problems both inside and outside the classroom.  A study, commissioned by the mayor of London, showed in London alone there are over 800 schools, nurseries, and colleges being exposed to illegal levels of air pollution. The EU legal limit for nitrogen dioxide pollution levels is 40µg/m3 (40 micrograms per cubic metre of air) and some schools have NO2 readings as high as 73.

There is no more important outdoor environment to protect from the dangerous toxins of traffic pollution than beyond the school perimeter.  Hedera Screens Ltd are working tirelessly to supply 100s of metres of Green Screens as the first line of defense in the battle to improve air quality in the UK.

The Mayor’s Air Quality Audit

Today’s Mayor, Sadiq Khan has continued and developed the urgency in improving urban air quality with the The Mayor’s Air Quality Audit, launched last Autumn (September 2017). The first 50 air quality audits for primary schools in the worst-polluted areas in London have been conducted and measures identified to protect pupil’s health from the toxic air. One of the main recommendations was the improvement of “green infrastructure such as ‘barrier bushes’ along busy roads and in playgrounds to help to filter toxic fumes.” And there is no more effective, easy-to-install, low maintenance ‘barrier bush’ than a Green Screen!

The Mayor’s Air Quality Fund

Launched in April 2013 by the then-Mayor of London, Boris Johnson, the Mayor’s Air Quality Fund (MAQF) is providing grants from over 10 years from a £20 million fund to support new projects by London boroughs to improve air quality.  Projects have been funded and completed so far with the same aim – to reduce emissions and pollution AND to prevent their ongoing damage to existing residents and visitors to the City.

The pollution-reducing power of Green Screens

Ongoing research shows that the Green Screens, superior in plant density and construction than other green screen options, help remove PM10 particulate pollution – in some sample locations up to 60% of the particles were “cleansed” from the air behind the screens. The research continues to further validate these initial findings, but increasingly, the installation of Green Screens offers not only a secure and natural screening barrier for schools’ perimeters, but a valuable screening option to reduce the harsh effects of urban pollution from our schools and communities.

What is PM10?

Particle pollution, also called particulate matter or PM, is a mixture of solids and liquid droplets floating in the air. Some particles are released directly from a specific source, while others form in complicated chemical reactions in the atmosphere. Particles come in a wide range of sizes.  Particles less than or equal to 10 micrometers in diameter are so small that they can get into the lungs, potentially causing serious health problems.  Ten micrometers is less than the width of a single human hair.  Coarse dust particles (PM10) are 2.5 to 10 micrometers in diameter.

Last year the Mayor of London audited 50 of the most polluted schools in London. Hedera Screens Ltd are working with schools in London and around the UK to improve the air quality with Green Screenstree’s,  additional planting and external living walls.

Please check by clicking here to see if your nursery, school or college is suffering from toxic air pollution.

Dr Francis Gilchrist, consultant respiratory pediatrician at Royal Stoke University hospital, said it was known that children were particularly sensitive to air pollution and that lung damage had lifelong consequences.

“There is definitely concern that air pollution is affecting children’s lungs – in particular it exacerbates respiratory illness, like asthma, and it predisposes children who are healthy to having repeated chest infections. If you damage your lungs in childhood you are likely to see these effects right through into adulthood, so there is a lifelong impact.”

Enter your postcode in this BBC tool to see how polluted your street is.

This is not limited to local authority or government funding, we have spoken to many groups that are considering a variety of self funding methods in order to take action against air pollution in and around their local schools.

For over ten years Hedera Screens have become a trusted supplier and installer of greens screens and living walls for a wide variety of sectors from house builders to major construction companies.   Providing a fully managed service from inception to completion, using our in house team of skilled and knowledgeable staff – with RHS Wisley trained horticulturist at the helm boasting over 30 years experience in his field.  We also offer an optional aftercare maintenance and Irrigation Service to promote the longevity of your products.

When selecting companies to shortlist for your projects, we would strongly recommend that you check their credibility, many are in their infancy and are attracted by this plentiful initiative and may not have the necessary experience and resources to professionally carry out the installation, or indeed provide the valuable aftercare required.  Here at Hedera Screens we have a proven track record of many years’ of horticultural experience coupled with a caring, dedicated team of professionals.  Your satisfaction is our motivation.  Hedera Screens also hold the following accreditations:


For several years we have been helping some of the most polluted schools across London and the UK in an effort to improve the air quality for their students through the installation of our Green Screens planting and living walls   The screens can be planted directly into the ground, using timber or powder coated steel posts, planted into planter boxes or raised sleeper beds.

Your funding options

Act now if you are concerned about the levels of pollution and air quality at your school, in your playground or playing fields.  You can apply for funding when the next grant window opens (Deadline 11th January 2019). This need not be an administrative nightmare – we can provide a free Green Screens Audit where we can check all your measurements enabling you to complete your application as part of your funding package.

Case studies and more information

Please see below, information relating to air quality topics and  case studies carried out following Hedera Screens Installations.

Please click on the links, these will open a new window for you.

A short video promoting Green My School:


Contact one of our friendly team today and start your journey to cleaner, healthier air for you, your school and community.  Our staff are DBS checked and our installations can be organised during term time or half term

You can follow us on social media: Twitter @HEDERASCREENS  Instagram @hederascreensor Facebook @hederascreensand show your support for the air quality campaign with the hashtag #greenmyschool @greenmyschool


If you would like to learn more about Ivy Green Screens, please watch the attached video, ‘How it’s made’ programme, courtesy of the Discovery Channel Click here to watch – featuring Hedera Screens Ltd installing green screens.

Or please take a moment to watch our short Photo book video of the the variety of uses and installations of our green screens.


Check our Latest News Page regularly for information of our latest projects


Green Screens information sheet


Living Walls information sheet


Hedera Screens Green Screens Project St-Cuthberts and St-Matthias CoE Primary-School, RBKC


Report on the impact of a green screen on concentrations of nitrogen dioxide at Bowes Primary School, Enfield


Air Pollution & How Plants Help