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I welcome the reports from Royal Society of Chemistry on making Polymers in Liquid Formulations (PLFs) more sustainable, helping to raise awareness of the complex issues around sustainable paint, and waste management.

Zero Waste Scotland provide further detail on what to with used paint and paint cans here: What to do with used paint | Recycling | How to Waste Less . Zero Waste Scotland also work through Revolve to promote the wider reuse of items and materials and help raise awareness of responsible consumption.

This service provision supplements social enterprise and third sector initiatives running paint collection and redistribution reuse networks for waste paint.

I am pleased to see Royal Society of Chemistry highlighting this important issue through its recent report.

The Scottish Government is committed to building a fully circular economy as part of our work to tackle the climate emergency. The shift to a circular economy represents an enormous economic and industrial opportunity for Scotland.

To make the most of this opportunity, we are working with industry, including construction and demolition sectors, local government and environmental groups to develop a route map to deliver our waste, recycling and climate change targets to 2025 and beyond. Through the Route Map and the forthcoming Circular Economy Bill we will consider how best to take forward waste reduction and circular economy across a range of waste streams.

In October 2020, we published our Inward Investment Plan, which identifies the transformation of the chemicals industries as one of Scotland’s nine opportunity areas for inward investment.

Partnering with Scottish Enterprise, the Industrial Biotechnology Innovation Centre (IBioIC) supports the advancement of bio-based solutions across all sectors. This includes supporting members of IBioIC to develop sustainable solutions for the paint industry.

Scotland’s chemical sciences R&D is consistently ranked top 3 in the world. R&D expenditure on chemicals & chemical products and pharmaceuticals totalled £192 million in 2019, 13.7% of the Scottish total.

I welcome the report from Royal Society of Chemistry on making Polymers in Liquid Formulations (PLFs) more sustainable, helping to embed circular economy in to this area.

The Scottish Government is committed to building a fully circular economy as part of our work to tackle the climate emergency.

To make the most of this opportunity, we are working with industry, including construction and demolition sectors, local government, environmental groups and wider stakeholders to develop a Route Map to deliver our waste and recycling targets to 2025 and beyond. Through the Route Map and the forthcoming Circular Economy Bill we will consider how best to take forward waste reduction and ensure circular economy approach across a range of waste streams.

We have not asked local authorities to undercut doors in schools, nor was £300,000 provided to them specifically for these purposes.

My letter to the Education, Children and Young People Committee setting out the example scenario was not guidance, and has not been issued to local authorities. The letter stated:

“In order to calculate the £5m schools/ELC ventilation fund, we have assumed an example set of remedial measures which could be taken for each problematic space although this will vary depending on local decisions.”

and

“ It is very important to note that these costs will of course vary significantly in practice, as the precise remedial measures used in each problematic space should be informed by local circumstances and expert assessment by local authority teams .”

An undercut of a door was therefore clearly indicated as only one element of an example set of remedial measures used to calculate the up-to-£5m fund. The other elements that formed part of the example were temporary use of an air cleaning device and installation of small mechanical ventilation units.

Inclusion of the potential for a door undercut in the example is fully in line with expert advice. This makes clear that undercuts (small gaps at the bottom of a door) allow air pressure to be equalised on each side of the door, to ensure that additional force on one side does not make the door difficult to open. This includes cases where the pressure increase caused by mechanical ventilation systems – another key element of the example scenario – could impair the normal safe operation of a door. It was for this reason that this element was included in the example scenario used to generate costings.

Local authorities are fully aware that they should undertake any remedial work in line with Scottish Government guidance on ventilation and expert input. Our guidance already makes clear that when implementing any Covid-safety measures, local authorities must continue to adhere to legal obligations with regard to health and safety, including fire safety. It is of course for local authorities as duty holders to ensure appropriate consultation with all relevant authorities when undertaking works in school buildings.

The foremost reason for us enhancing ventilation during the COVID-19 pandemic is to ensure schools are as safe as possible for children, young people and staff.

However, we are aware that good air quality should also contribute to enhancing children’s cognitive function of learning in education environments.

These figures are based on the latest advice from SAGE’s Environmental Modelling Group, which monitors evidence from a wide range of authoritative sources. Our guidance is reviewed as scientific advice develops.

The figures used are aligned with those used in guidance issued by the Department for Education in England and the Welsh Government.

The Department for Education has undertaken a review of air cleaning devices likely to be suitable for use in schools, and associated costs, to support a centralised procurement strategy. This information was therefore utilised to assist in building up our cost assumptions.

Only a small number of local authorities in Scotland have to date chosen to utilise air cleaning devices, in a very small number of problematic spaces as a temporary measure.

The example scenario used to generate overall costings for the up-to-£5m funding was developed with input from the Scottish Futures Trust, and drew on the costings that had already been developed for the Business Ventilation Fund with input from the expert Covid-19 Ventilation Short Life Working Group.

As was made clear in the letter to the Committee, an undercut of a door was only one element of the example set of remedial measures used to calculate the up-to-£5m fund. The other elements that formed part of the example were temporary use of an air cleaning device and installation of small mechanical ventilation units.

Inclusion of the potential for a door undercut in the example is fully in line with expert advice. This makes clear that undercuts (small gaps at the bottom of a door) allow air pressure to be equalised on each side of the door, to ensure that additional force on one side does not make the door difficult to open. This includes cases where the pressure increase caused by mechanical ventilation systems – another key element of the example scenario – could impair the normal safe operation of a door. It was for this reason that this element was included in the example scenario.

My letter to the Committee stated explicitly:

“In order to calculate the £5m schools/ELC ventilation fund, we have assumed an example set of remedial measures which could be taken for each problematic space although this will vary depending on local decisions.”

and

“ It is very important to note that these costs will of course vary significantly in practice, as the precise remedial measures used in each problematic space should be informed by local circumstances and expert assessment by local authority teams .”

An undercut of a door was therefore clearly indicated as only one element of an example set of remedial measures used to calculate the up-to-£5m fund.

All local authorities have been informed of their potential allocations from the up-to-£5 million fund. Our funding letter makes clear that remedial action should be undertaken in line with guidance on ventilation, with problematic spaces prioritised for action.

Once remedial action in priority spaces has been prioritised, funding can also be used to further support CO2 monitoring requirements, or to undertake other remedial work on ventilation.

Our guidance on ventilation for schools, updated most recently in December 2021, indicates that problematic spaces are where readings above 1500ppm are persistent despite mitigation measures being taken. Areas of high aerosol activity may use 800ppm as the threshold for high CO2 concentration.

Ventilation is a complex issue requiring, among other things, ongoing monitoring and management. For example, changes in room use or weather conditions can result in assessments of air quality changing over time, requiring fresh remedial action.

The Scottish Government has agreed formal reporting requirements regarding the number of remaining problematic spaces with local authorities. We will provide an update to the Education, Children and Young People Committee in due course, subject to receipt of local authority returns.