London's Ultra-Low Emission's Zone (ULEZ) came into force across central London on Monday, with drivers of older, high-emission vehicles set to pay a £12.50 tax in addition to congestion charges.
London Mayor Sadiq Khan tweeted on Monday that the ULEZ would cut toxic emissions and make London's air quality "safer for millions".
"This world-leading scheme is just one of the bold changes we're making to tackle toxic air," Mr. Khan tweeted.
The ULEZ will be expanded in 2021 to the North and South Circular roads, with estimates of a 45 per cent reduction in toxic emission in two years. Mr Khan called London's air pollution crisis a "public health emergency" affecting the "poorest Londoners that suffer the worst quality air".
Many have praised the new initiative, stating that it was a "bold" and necessary move to cull London's pollution crisis.
But others have voiced concerns about the ULEZ taxes, with the Federation of Small Businesses stating that small companies were "very worried about the future of their businesses" due to the "additional cost burden". Some have said that it affects the "least well-off", with others slamming it as a "half-baked solution".