Roadside sensors have improved air quality as they have resulted in vehicles being with the dirtiest fumes to be detected. This has been developed in Hong Kong and cars that run on petrol and diesel emit harmful chemicals like nitrogen oxides and hydrocarbons.

With the development in technology, new cars have been advanced to reduce the emissions even though they become more polluting over time. Older versions of cars that are on the road are usually the heavy emitters.

In order to identify the worst offending vehicles, the car sensors have been installed in Hong Kong. This has been done on the highway ramps that use infrared and ultraviolet beams to detect carbon monoxide. The levels of the polluters are monitored whenever the car is on the road. Inspection is done automatically with the tailpipe exhausts of passing vehicles being used.

Cameras that have been installed capture the license plate of the most polluting vehicles to make sure that the owners are identified. When they have been noticed, the owners are obliged to repair their vehicles and they pass through the emission test. The payments are done by the owners of the vehicle before they are allowed to use the car on the road. Enforcement of the program began in 2014 and a lot of cars that would have been polluting were detected by the pollution sensors.

The air quality has been improved by the sensors in Hong Kong. Roadside locations have been using the same method when a car has been found polluting whilst on the road. A lot of drivers have resorted to using vehicles services every week to make sure they do not repeat the pollution test or are detected by the car sensors unknowingly.

However, the owners of different vehicles continue to make use of the law so as to protect the environment from air pollution.


Comments are closed.