Coronavirus 'does not last long in open sunlit environments' Wales' scientific advisors find
Welsh scientific advisors have found coronavirus decays at a much faster rate when in open, sunlit environments.
The Technical Advisory Cell, which provides the Welsh Government guidance, said "the virus is very likely to decay very quickly (a few minutes) in air and on surfaces when exposed to sunlight."
The advisors also said it could help to operate buildings at a higher temperature and/or humidity, providing this does not cause significant discomfort to workers.
They added that the amount of ventilation should not be reduced to achieve this.
The publication of this advice is expected to increase pressure on the Welsh Government to ease restriction of movements for the public.
Earlier this month, the First Minister announced that Wales' lockdown restrictions would continue for a further three weeks, with only a few minor adjustments.
However the UK Government eased the lockdown in England, including allowing people to go fishing or play golf under certain conditions.
Differing messages have caused some confusion, with Welsh police issuing multiple fines over the weekend to those travelling across the border for non-essential reasons.
What is the Technical Advisory Cell (TAC)?
The board of advisors are "needed to provide official sensitive advice to ministers" and meets three times a week.
A long list of experts from a variety of specialisms are members along with unnamed people from the Welsh Government, Public Health Wales and some academics.
The UK Government is advised by a separate board, the Scientific Advisory Group for Emergencies (SAGE).
TAC is designed to "interpret SAGE outputs into a Welsh context" and "relay relevant info and questions from Welsh Government to SAGE."
There has been some debate over the identification of board members, with Plaid Cymru leader Adam Price calling for greater transparency.