For diesel vehicle pollution control, the Environmental Protection Bureau of
Hsinchu County Government regularly entrusts " The Plan of Diesel-fueled Vehicle
Smoke Emission Detection on Dynamometer" to improve the air quality in Hsinchu
County. Also, give the county people a clean and fresh living environment. The
government expects to improve the air quality in Hsinchu County through random
inspection, control, and adjustment to achieve the effect of pollution reduction and
environmental protection. This project focuses on the checking of diesel-fueled vehicles
driving in Hsinchu County. The public will inform the diesel vehicl es operating in the
area to arrive at the station for inspection by visual identification on emission. In addition,
they use the license plate recognition system to check the pollution emission of diesel
vehicles driving in the autonomous management area within the jurisdiction.
During the implementation period, the plan has used dynamometer detection
(automatic arrival inspection, autonomous management, notification arrival inspection,
etc.) and roadside inspection to understand the high-polluting vehicle population.
According to statistical analysis, the test failure rate of the roadside inspection was
relatively high. After screening 128 vehicles, the test failure rate was 42.2%. There are
more cases of personal-use vehicles with a high test failure rate, and they should continue
to be tracked and inspected. Compared with dynamometer testing (a total of 2,591
vehicles arrival inspection), the failure test rate was 6.4%, and the test rejection rate was
5.6%. Vehicles with a vehicle age of 8-10 years and vehicles with a displacement of
10000-11000 c.c. are the groups with a higher failure rate. The failure test rate of the
vehicle types is higher for commercial buses. Therefore, it is necessary to continue to
send automatic arrival notices for vehicles with a high test failure rate to keep abreast of
pollution emissions.
Based on the analysis of various inspection projects, this plan has signed the "green
fleet" of 72 enterprises. There are 1922 environmentally friendly diesel-fueled vehicles
in total, and the overall value of opacity monitors of the environmental protection team
is only 0.19 m-1. Compared with other inspected cars, the pollution emission is the lowest.
There are 824 autonomous management operators have signed that manage 4316 dieselfueled automobiles and have issued 2912 autonomous management seals. Compared with
those before and after autonomous management, the value of opacity monitor and the
pollution improvement rate of these vehicles reached 34.8%. It shows that promoting the
green fleet and autonomous management can effectively reduce vehicle pollution
emissions.
There were 34,480 cars visual identification on emission and 186 visual
identifications on emission notices. There were 19 joint inspections in Hsinchu City,
Hsinchu County, and Miaoli County. We have used the license plate recognition system
241043 times, and have sent 4,032 automatic arrival inspection notices. The efforts to
include specific self-management zones have paid off, as inclusion rate was 63.6% for
the Scientific Park, 34.0% for Neiwan Scenic Area and 52.2% for Hsinchu Industrial Park.
The assessment of the air quality maintenance zoning, we have completed successively
Abstract-II
the consultation meeting of affected objects, the draft announcement control, and the
handling of the research Chamber of Commerce. After soliciting public opinions, the air
quality maintenance zoning plan of the Neiwan scenic spot was submitted to the
Environmental Protection Administration for review on October 15, 2021, and approved
by the Environmental Protection Administration on December 30, 2021.
For the pollution improvement of large fleets, it is through the sending of publicity
sheets, visiting operators, telephone interviews, and questionnaire publicity. That
prompted to scrap 261 large diesel-fueled vehicles and 91 vehicles to apply for repair
subsidies. In addition, 94.7% of the large fleets with more than ten cars in the jurisdiction
have completed the signing of autonomous management. 13 operators have joined CSR
green fleet.
As for the innovative and intensive approach, we have set up a set of vehicle urea
concentration meters with OBD (On-Board Diagnostics) for inspection, confirming
whether there is an external device at the same time. And we have completed the checking
of 327 vehicle urea post-treatment systems with selective catalytic reduction (SCR). In
addition, we set up a set of mobile noise technology law enforcement equipment to
conduct inspections on noisy vehicles. We have informed against 23 cars with excessive
noise during the planning period.
This plan has achieved several results, including pollution improvement through
detecting nonconforming vehicles, beforehand tuning of vehicles for s ervicing and
inspection in one package, and helping with vehicle retirement and replacement. The
improvement of pollutant discharge was estimated. It is estimated that the plan has helped
with the reduction of 41.08 ton/year of particulate pollutants.
