More than 112,000 fines were issued in July for non-payment of the Clean Air Zone charge – with less than half of these paid so far.
The Local Democracy Reporting Service reported in July some 44,000 people were fined for non-payment of the CAZ charge in June.
The latest statistical release shows the average number of £120 penalty charge notices (PCNs) issued each working day rose from 3,393 in June to 5,126 in July.
A total of 112,772 PCNs were issued in total – of which 50,760 have been paid and 61,605 are yet to be paid.
Around one in three people subject to a charge were given a PCN for non-payment.
If all the PCNs issued in July were paid in time to reduce the charge to £60, the council would stand to make £6.7 million.
In addition, the council stands to make more than £1.9 million from the remainder of the vehicles charged which were not subject to a PCN, bringing the total for the month to £8.6 million.
But at the same time, the number of charges clocked up by highly-polluting vehicles entering the zone fell from 18,787 per day on average at the start of the scheme to 11,372 per day in July.
Compliance rate – the proportion of vehicles which meet emissions standards – rose from 73.8 in the first half of June to 79.9 per cent in the second half to 80.4 per cent in July.
The average number of unique vehicles detected within the zone – all roads within the A4540 Middleway Ring Road but not the Middleway itself – initially fell during June and then stayed about level in July.
An average of 100,550 vehicles entered the CAZ in the first half of June, which fell to 95,360 in the second half and stood at 95,414 in July.
Buses and coaches continue to have the highest compliance rate at 98.8 per cent in July, followed by heavy goods vehicles at 93.7 per cent and cars at 88.6 per cent.
The compliance rate of vans was 74.1 per cent in July and the rate for mini-buses was 73.2 per cent.
Birmingham City Council’s Head of the Clean Air Zone, Stephen Arnold has previously said it is hoped the percentage of people receiving a PCN will reduce as people get used to the way the scheme works.
The CAZ is being implemented in response to poor air quality in the city which is responsible for a reported 900 deaths per year.
It has been reported Bath’s Clean Air Zone has seen nitrogen dioxide levels within the zone decrease by more than 12 per cent in the first quarter of operation.
A legal adviser who worked on both cities’ schemes said Birmingham’s CAZ – which charges private cars unlike Bath’s could see “greater benefits”.
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