London's latest attempt to improve air quality targets aging and polluting cars.
It's called the "Toxicity Charge" or "T-Charge," and it means diesel and gas cars registered before 2006 that fail to meet emission standards will be taxed 10 pounds, or about $13, a day.
The T-Charge zone covers the same area as the Congestion Charging zone, which already comes with a fee. So drivers with non-compliant cars traveling through trafficky parts of London will now face a daily fee of around 21 pounds, or $28.
Critics of the fee say it penalizes low-income drivers who cannot afford to buy new cars.
And some are skeptical the T-Charge will do much at all: Only around 9,000 vehicles are expected to be affected by the fee each day — less than 10 percent of the city's drivers.
Still, others don't think the measure goes far enough and are pushing for the mayor to ban diesel-fueled cars and expand the area in which the T-Charge is enforced.
London's mayor seems to agree — he said he'll "continue to do everything in [his] power to help protect the health of Londoners and clean our filthy air."
The T-Charge is just one step in the city's $1.1 billion project to improve air quality. London plans to replace it with an even higher fee within the next couple years.
A 2015 study found that London's air pollution accounts for anywhere from around 3,500 to nearly 9,500 premature deaths each year.