English: Well, Llywydd, the origin of the ozone approach to cleanliness comes through work carried out at Swansea University, carried out with an innovation grant from the Welsh Government. The work at Swansea University was focused on the efficiency of using ozone as a cleaning agent in the cleaning of ambulances, and the result of that innovative programme was thought to be successful. It had demonstrated that ozone disinfecting machines had a part to play in making the cleaning of ambulances as effective as it could be and that the learning that had been acquired in that field could be translated to help support schools in their cleaning efforts. That's what the original press release from the Welsh Government referred to. Now, having published that idea, there were, as Siân Gwenllian said, a number of concerns raised as to whether or not the effectiveness of the approach that Swansea University had developed in the ambulance context could simply be translated into school cleaning as well. Because of the concerns raised, we decided that the sensible thing to do was to pause in that programme - no actual machines had been procured at that point - and to get further advice from Swansea University itself, but also from our own technical advisory group, as an independent voice on all of that, to see whether the use of ozone disinfecting machines do present a new technological possibility for cleaning in education settings. There's a rapid review being carried out by the technical advisory cell, therefore, of the technology, of its possibility, because we would not, of course, want to proceed until we were certain that the benefits of doing so had been maximised and any risks mitigated, and that we were able to share that evidence with people who work in the field. In the meantime, I agree with what Siân Gwenllian said at the end of her question, Llywydd, that of course we need to go on looking for effective ways in making sure that schools are safe. We've invested considerable amounts of money on enhanced cleaning regimes in schools in Wales over the period of the pandemic and through our school social partnership arrangements, we go on working with our partners to make sure that we have the highest possible standards of cleanliness and of safety in schools for teachers, other staff and students alike.
Welsh: Wel, Llywydd, daw tarddiad y dull osôn o sicrhau glendid o waith a wnaed ym Mhrifysgol Abertawe, a wnaed gyda grant arloesi gan Lywodraeth Cymru. Roedd y gwaith ym Mhrifysgol Abertawe yn canolbwyntio ar effeithlonrwydd defnyddio osôn fel asiant glanhau wrth lanhau ambiwlansys, a chredwyd bod canlyniad y rhaglen arloesol honno yn llwyddiannus. Roedd wedi dangos bod gan beiriannau diheintio osôn ran i'w chwarae i wneud y gwaith o lanhau ambiwlansys mor effeithiol ag y gallai fod ac y gellid trosglwyddo'r dysgu a gaffaelwyd yn y maes hwnnw i helpu i gynorthwyo ysgolion yn eu hymdrechion glanhau. Dyna yr oedd y datganiad gwreiddiol i'r wasg gan Lywodraeth Cymru yn cyfeirio ato. Nawr, ar ôl cyhoeddi'r syniad hwnnw, codwyd nifer o bryderon, fel y dywedodd Siân Gwenllian, ynghylch pa un a ellid trosglwyddo yn syml effeithiolrwydd y dull yr oedd Prifysgol Abertawe wedi ei ddatblygu yng nghyd-destun ambiwlansys i lanhau ysgolion hefyd. Oherwydd y pryderon a godwyd, gwnaethom y penderfyniad mai'r peth synhwyrol i'w wneud oedd oedi'r rhaglen honno - nid oedd unrhyw beiriannau wedi eu caffael bryd hynny - ac i gael rhagor o gyngor gan Brifysgol Abertawe ei hun, ond hefyd gan ein grŵp cynghori technegol ein hunain, fel llais annibynnol ar hynny i gyd, i weld a yw defnyddio peiriannau diheintio osôn yn cynnig posibilrwydd technolegol newydd ar gyfer glanhau mewn lleoliadau addysg. Mae adolygiad cyflym yn cael ei gynnal gan y gell cyngor technegol, felly, o'r dechnoleg, o'i phosibilrwydd, oherwydd ni fyddem ni eisiau bwrw ymlaen, wrth gwrs, tan ein bod ni'n sicr bod manteision gwneud hynny gymaint â phosibl a bod unrhyw risgiau yn cael eu lliniaru, a'n bod ni'n gallu rhannu'r dystiolaeth honno â phobl sy'n gweithio yn y maes. Yn y cyfamser, rwy'n cytuno â'r hyn a ddywedodd Siân Gwenllian ar ddiwedd ei chwestiwn, Llywydd, bod angen i ni, wrth gwrs, fynd ati i chwilio am ffyrdd effeithiol o wneud yn siŵr bod ysgolion yn ddiogel. Rydym ni wedi buddsoddi symiau sylweddol o arian mewn gwell trefnau glanhau mewn ysgolion yng Nghymru dros gyfnod y pandemig a thrwy ein trefniadau partneriaeth gymdeithasol ysgolion, rydym ni'n parhau i weithio gyda'n partneriaid i sicrhau bod gennym ni'r safonau glendid a diogelwch uchaf posibl mewn ysgolion ar gyfer athrawon, staff eraill a myfyrwyr hefyd.