Sadiq Khan is facing an ongoing ULEZ rebellion with cameras vandalised nearly 1,000 times in just seven months.
Vigilantes dubbed Blade Runners have targeted enforcement cameras installed by Transport for London (TfL).
New figures from the Met Police show a total of 987 offences have been recorded since April 1.
Of these, some 767 are reports of cameras being damaged and 220 are of cameras being stolen.
So far three people have been charged, one of whom has had their case dropped, and two arrested and bailed.
The force said: “The Met continues to treat criminal activity in relation to ULEZ seriously and has deployed considerable resources to our operation.
“Where there are possible lines of enquiry, local investigators will follow up using a range of investigative approaches including CCTV trawls, witness searches and an assessment of forensic opportunities.”
Multiple offences can be linked to one camera, such as a cable being cut and then the camera being stolen.
Mr Khan faced major opposition to his decision to expand the ULEZ in August from central London to cover the whole of the capital.
Drivers have to pay a £12.50 daily fee for the most polluting vehicles in a bid to boost air quality.
TfL said on Tuesday that 95 percent of vehicles within London are now compliant with the emission zone requirements. Figures suggest it receives around £715,00 a day in ULEZ fees.
The London Mayor said: “I’ve always said that the decision to expand the ULEZ was very difficult, but a month on from the expansion we can already see that it is working.”
