Thank you for that reply. I look forward to seeing that report, First Minister. The safety, of course, of the air that we breathe remains an issue around certainly the western part of the M4 running through my region. You'll recall that the extended 50 mph temporary zone west of Port Talbot is no longer temporary. However, I seem to recall that Government officials advised that the legal change doesn't necessarily mean that the reduced speed limit will be permanent, stating that once air quality has improved beyond required levels, the Government will revisit the question of the speed limit in that area.

Listening to your response to Paul Davies earlier, can you just confirm that it's still your intention to possibly increase that speed limit if there is a reduction in air pollution caused by vehicles? In the meantime, what active steps are you taking to encourage the use of less-polluting publicly procured and publicly licensed vehicles in that part of my region?