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Vehicle Emissions
What's So Bad About Exhaust Fumes?
There are many different causes of air pollution in New Zealand with the majority being vehicle emissions and industrial emissions. The major contributor by far, of air pollution problems comes from the transport sector – motor vehicles. In New Zealand road traffic causes 46% of carbon dioxide emissions. Each litre of petrol used produces 2.5 kilograms of carbon dioxide, along with carbon monoxide, nitrogen oxides, hydrocarbons, particulates and lead.
Of the four main air pollutants emitted globally, motor vehicles produce:
  • 90% of all carbon monoxide in the atmosphere
  • 45% of all hydrocarbons
  • 50% of all nitrogen oxides
  • 35% of carbon dioxide.
What's So Bad About Those Particulates?
The particulates are so small they can penetrate deep into the lungs causing increased hospital stays, impaired lung function, increased absence from work and increased death from heart disease and lung cancer. Children, the elderly, smokers, asthmatics and others suffering from respiratory disorders are especially vulnerable to this type of air pollution.

Smokey Vehicle
This vehicle was seen in Whakatane on the 30 August 1999.
Smokey Vehicle
Thankfully this is one vehicle that has since had its emission problem fixed.


What Is Environment Bay of Plenty Doing About Vehicle Emissions?
Environment Bay of Plenty is currently undertaking a targeted education programme monitoring the situation. We have trained field officers around the Bay of Plenty every day and while they are carrying out their normal duties, they are taking down the details of excessively smokey vehicles. These are vehicles with exhaust emissions in excess of 10 seconds in duration.

These details are entered into a database and lodged with the Land Transport Safety Authorities’ register, Motochek. Motochek returns a report on the vehicle, its owner and its owner’s address. Environment Bay of Plenty sends the vehicle owner a letter stating when and where the vehicle was seen, and advising the recipient of Rule 6 the Air Plan. Which states:

  • Rule 6 Permitted Activity – Vehicles and Small Internal Combustion Sources

    The discharge of contaminants into air from normal combustion associated with vehicles and small internal combustion sources including but not limited to chainsaws, lawnmowers and boats is a permitted activity provided the following condition is complied with:

    1. The discharge must not result in excessive smoke for periods of 10 seconds or more.

Advising the vehicle owner of the problems and providing information to assist the owner on how to reduce emissions is all Environment Bay of Plenty will be doing at the moment. However, if the problems persist Environment Bay of Plenty will review its position and could introduce infringement notices.





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